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							2307 lines
						
					
					
						
							85 KiB
						
					
					
				
			
		
		
	
	
							2307 lines
						
					
					
						
							85 KiB
						
					
					
				<?php
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/* For licensing terms, see /license.txt */
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use Chamilo\CourseBundle\Entity\CSurveyInvitation;
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/**
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 * Class SurveyManager.
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 *
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 * @package chamilo.survey
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 *
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 * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University:
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 * cleanup, refactoring and rewriting large parts (if not all) of the code
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 * @author Julio Montoya <gugli100@gmail.com>, Personality Test modification
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 * and rewriting large parts of the code
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 * @author cfasanando
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 *
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 * @todo move this file to inc/lib
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 * @todo use consistent naming for the functions (save vs store for instance)
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 */
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class SurveyManager
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{
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    /**
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     * @param $code
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     *
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     * @return string
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     */
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    public static function generate_unique_code($code)
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    {
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        if (empty($code)) {
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            return false;
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        }
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        $course_id = api_get_course_int_id();
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        $table = Database::get_course_table(TABLE_SURVEY);
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        $code = Database::escape_string($code);
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        $num = 0;
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        $new_code = $code;
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        while (true) {
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            $sql = "SELECT * FROM $table
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                    WHERE code = '$new_code' AND c_id = $course_id";
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            $result = Database::query($sql);
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            if (Database::num_rows($result)) {
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                $num++;
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                $new_code = $code.$num;
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            } else {
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                break;
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            }
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        }
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        return $code.$num;
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    }
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    /**
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     * Deletes all survey invitations of a user.
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     *
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     * @param int $user_id
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     *
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     * @return bool
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     * @assert ('') === false
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     */
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    public static function delete_all_survey_invitations_by_user($user_id)
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    {
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        $user_id = intval($user_id);
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        if (empty($user_id)) {
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            return false;
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        }
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        $table_survey_invitation = Database::get_course_table(TABLE_SURVEY_INVITATION);
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        $table_survey = Database::get_course_table(TABLE_SURVEY);
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        $sql = "SELECT survey_invitation_id, survey_code
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                FROM $table_survey_invitation WHERE user = '$user_id' AND c_id <> 0 ";
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        $result = Database::query($sql);
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        while ($row = Database::fetch_array($result, 'ASSOC')) {
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            $survey_invitation_id = $row['survey_invitation_id'];
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            $survey_code = $row['survey_code'];
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            $sql2 = "DELETE FROM $table_survey_invitation
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                    WHERE survey_invitation_id = '$survey_invitation_id' AND c_id <> 0";
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            if (Database::query($sql2)) {
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                $sql3 = "UPDATE $table_survey SET
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                            invited = invited-1
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                        WHERE c_id <> 0 AND code ='$survey_code'";
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                Database::query($sql3);
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            }
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        }
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    }
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    /**
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     * @param string $course_code
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     * @param int    $session_id
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     *
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     * @return array
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     * @assert ('') === false
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     */
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    public static function get_surveys($course_code, $session_id = 0)
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    {
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        if (empty($course_code)) {
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            return false;
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        }
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        $course_info = api_get_course_info($course_code);
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        if (empty($course_info)) {
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            return false;
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        }
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        $session_condition = api_get_session_condition($session_id, true, true);
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        $table = Database::get_course_table(TABLE_SURVEY);
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        $sql = "SELECT * FROM $table
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                WHERE c_id = {$course_info['real_id']} $session_condition ";
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        $result = Database::query($sql);
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        $result = Database::store_result($result, 'ASSOC');
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        return $result;
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    }
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    /**
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     * Retrieves all the survey information.
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     *
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     * @param int  $survey_id the id of the survey
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     * @param bool $shared    this parameter determines if
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     *                        we have to get the information of a survey from the central (shared) database or from the
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     *                        course database
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     * @param string course code optional
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     *
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     * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
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     *
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     * @version February 2007
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     * @assert ('') === false
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     *
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     * @return array
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     *
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     * @todo this is the same function as in create_new_survey.php
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     */
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    public static function get_survey(
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        $survey_id,
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        $shared = 0,
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        $course_code = '',
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        $simple_return = false
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    ) {
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        // Table definition
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        if (!empty($course_code)) {
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            $my_course_id = $course_code;
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        } elseif (isset($_GET['course'])) {
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            $my_course_id = Security::remove_XSS($_GET['course']);
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        } else {
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            $my_course_id = api_get_course_id();
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        }
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        $courseInfo = api_get_course_info($my_course_id);
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        $table_survey = Database::get_course_table(TABLE_SURVEY);
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        if ($shared != 0) {
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            $table_survey = Database::get_main_table(TABLE_MAIN_SHARED_SURVEY_QUESTION);
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            $sql = "SELECT * FROM $table_survey
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                    WHERE survey_id='".intval($survey_id)."' ";
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        } else {
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            if (empty($courseInfo)) {
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                return [];
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            }
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            $sql = "SELECT * FROM $table_survey
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		            WHERE
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		                survey_id='".intval($survey_id)."' AND
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		                c_id = ".$courseInfo['real_id'];
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        }
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        $result = Database::query($sql);
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        $return = [];
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        if (Database::num_rows($result) > 0) {
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            $return = Database::fetch_array($result, 'ASSOC');
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            if ($simple_return) {
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                return $return;
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            }
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            // We do this (temporarily) to have the array match the quickform elements immediately
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            // idealiter the fields in the db match the quickform fields
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            $return['survey_code'] = $return['code'];
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            $return['survey_title'] = $return['title'];
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            $return['survey_subtitle'] = $return['subtitle'];
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            $return['survey_language'] = $return['lang'];
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            $return['start_date'] = $return['avail_from'];
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            $return['end_date'] = $return['avail_till'];
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            $return['survey_share'] = $return['is_shared'];
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            $return['survey_introduction'] = $return['intro'];
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            $return['survey_thanks'] = $return['surveythanks'];
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            $return['survey_type'] = $return['survey_type'];
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            $return['one_question_per_page'] = $return['one_question_per_page'];
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            $return['show_form_profile'] = $return['show_form_profile'];
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            $return['input_name_list'] = isset($return['input_name_list']) ? $return['input_name_list'] : null;
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            $return['shuffle'] = $return['shuffle'];
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            $return['parent_id'] = $return['parent_id'];
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            $return['survey_version'] = $return['survey_version'];
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            $return['anonymous'] = $return['anonymous'];
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            $return['c_id'] = isset($return['c_id']) ? $return['c_id'] : 0;
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            $return['session_id'] = isset($return['session_id']) ? $return['session_id'] : 0;
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        }
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        return $return;
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    }
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    /**
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     * @param string $code
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     *
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     * @return string
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     */
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    public static function generateSurveyCode($code)
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    {
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        return strtolower(CourseManager::generate_course_code($code));
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    }
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    /**
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     * This function stores a survey in the database.
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     *
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     * @param array $values
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     *
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     * @return array $return the type of return message that has to be displayed and the message in it
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     *
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						|
     * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
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     *
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     * @version February 2007
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     */
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    public static function store_survey($values)
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    {
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        $allowSurveyAvailabilityDatetime = api_get_configuration_value('allow_survey_availability_datetime');
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        $_user = api_get_user_info();
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        $course_id = api_get_course_int_id();
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        $session_id = api_get_session_id();
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        $courseCode = api_get_course_id();
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        $table_survey = Database::get_course_table(TABLE_SURVEY);
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        $shared_survey_id = 0;
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        if (!isset($values['survey_id'])) {
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						|
            // Check if the code doesn't soon exists in this language
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            $sql = 'SELECT 1 FROM '.$table_survey.'
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			        WHERE
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			            c_id = '.$course_id.' AND
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			            code="'.Database::escape_string($values['survey_code']).'" AND
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			            lang="'.Database::escape_string($values['survey_language']).'"';
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            $rs = Database::query($sql);
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            if (Database::num_rows($rs) > 0) {
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                Display::addFlash(
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                    Display::return_message(
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                        get_lang('ThisSurveyCodeSoonExistsInThisLanguage'),
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                        'error'
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                    )
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                );
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                $return['type'] = 'error';
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                $return['id'] = isset($values['survey_id']) ? $values['survey_id'] : 0;
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                return $return;
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            }
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            if (!isset($values['anonymous'])) {
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                $values['anonymous'] = 0;
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            }
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            $values['anonymous'] = intval($values['anonymous']);
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            $extraParams = [];
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            if ($values['anonymous'] == 0) {
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                // Input_name_list
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                $values['show_form_profile'] = isset($values['show_form_profile']) ? $values['show_form_profile'] : 0;
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                $extraParams['show_form_profile'] = $values['show_form_profile'];
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						|
                if ($values['show_form_profile'] == 1) {
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						|
                    // Input_name_list
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                    $fields = explode(',', $values['input_name_list']);
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						|
                    $field_values = '';
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						|
                    foreach ($fields as &$field) {
 | 
						|
                        if ($field != '') {
 | 
						|
                            if ($values[$field] == '') {
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                                $values[$field] = 0;
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                            }
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                            $field_values .= $field.':'.$values[$field].'@';
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                        }
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                    }
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                    $extraParams['form_fields'] = $field_values;
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						|
                } else {
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                    $extraParams['form_fields'] = '';
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                }
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            } else {
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						|
                // Input_name_list
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                $extraParams['show_form_profile'] = 0;
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                $extraParams['form_fields'] = '';
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            }
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						|
            if ($values['survey_type'] == 1) {
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                $extraParams['survey_type'] = 1;
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						|
                $extraParams['shuffle'] = $values['shuffle'];
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						|
                $extraParams['one_question_per_page'] = $values['one_question_per_page'];
 | 
						|
                $extraParams['parent_id'] = $values['parent_id'];
 | 
						|
 | 
						|
                // Logic for versioning surveys
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						|
                if (!empty($values['parent_id'])) {
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						|
                    $versionValue = '';
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                    $sql = 'SELECT survey_version
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						|
                            FROM '.$table_survey.'
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						|
					        WHERE
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						|
					            c_id = '.$course_id.' AND
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						|
					            parent_id = '.intval($values['parent_id']).'
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						|
                            ORDER BY survey_version DESC
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                            LIMIT 1';
 | 
						|
                    $rs = Database::query($sql);
 | 
						|
                    if (Database::num_rows($rs) === 0) {
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						|
                        $sql = 'SELECT survey_version FROM '.$table_survey.'
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						|
						        WHERE
 | 
						|
						            c_id = '.$course_id.' AND
 | 
						|
						            survey_id = '.intval($values['parent_id']);
 | 
						|
                        $rs = Database::query($sql);
 | 
						|
                        $getversion = Database::fetch_array($rs, 'ASSOC');
 | 
						|
                        if (empty($getversion['survey_version'])) {
 | 
						|
                            $versionValue = ++$getversion['survey_version'];
 | 
						|
                        } else {
 | 
						|
                            $versionValue = $getversion['survey_version'];
 | 
						|
                        }
 | 
						|
                    } else {
 | 
						|
                        $row = Database::fetch_array($rs, 'ASSOC');
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						|
                        $pos = api_strpos($row['survey_version']);
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						|
                        if ($pos === false) {
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						|
                            $row['survey_version'] = $row['survey_version'] + 1;
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						|
                            $versionValue = $row['survey_version'];
 | 
						|
                        } else {
 | 
						|
                            $getlast = explode('\.', $row['survey_version']);
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						|
                            $lastversion = array_pop($getlast);
 | 
						|
                            $lastversion = $lastversion + 1;
 | 
						|
                            $add = implode('.', $getlast);
 | 
						|
                            if ($add != '') {
 | 
						|
                                $insertnewversion = $add.'.'.$lastversion;
 | 
						|
                            } else {
 | 
						|
                                $insertnewversion = $lastversion;
 | 
						|
                            }
 | 
						|
                            $versionValue = $insertnewversion;
 | 
						|
                        }
 | 
						|
                    }
 | 
						|
                    $extraParams['survey_version'] = $versionValue;
 | 
						|
                }
 | 
						|
            }
 | 
						|
 | 
						|
            $params = [
 | 
						|
                'c_id' => $course_id,
 | 
						|
                'code' => self::generateSurveyCode($values['survey_code']),
 | 
						|
                'title' => $values['survey_title'],
 | 
						|
                'subtitle' => $values['survey_subtitle'],
 | 
						|
                'author' => $_user['user_id'],
 | 
						|
                'lang' => $values['survey_language'],
 | 
						|
                'avail_from' => $allowSurveyAvailabilityDatetime
 | 
						|
                    ? api_get_utc_datetime($values['start_date'].':00')
 | 
						|
                    : $values['start_date'],
 | 
						|
                'avail_till' => $allowSurveyAvailabilityDatetime
 | 
						|
                    ? api_get_utc_datetime($values['end_date'].':59')
 | 
						|
                    : $values['end_date'],
 | 
						|
                'is_shared' => $shared_survey_id,
 | 
						|
                'template' => 'template',
 | 
						|
                'intro' => $values['survey_introduction'],
 | 
						|
                'surveythanks' => $values['survey_thanks'],
 | 
						|
                'creation_date' => api_get_utc_datetime(),
 | 
						|
                'anonymous' => $values['anonymous'],
 | 
						|
                'session_id' => api_get_session_id(),
 | 
						|
                'visible_results' => $values['visible_results'],
 | 
						|
            ];
 | 
						|
 | 
						|
            if (isset($values['survey_type']) && !empty($values['survey_type'])) {
 | 
						|
                $params['survey_type'] = $values['survey_type'];
 | 
						|
            }
 | 
						|
 | 
						|
            $params = array_merge($params, $extraParams);
 | 
						|
            $survey_id = Database::insert($table_survey, $params);
 | 
						|
            if ($survey_id > 0) {
 | 
						|
                $sql = "UPDATE $table_survey SET survey_id = $survey_id
 | 
						|
                        WHERE iid = $survey_id";
 | 
						|
                Database::query($sql);
 | 
						|
 | 
						|
                // Insert into item_property
 | 
						|
                api_item_property_update(
 | 
						|
                    api_get_course_info(),
 | 
						|
                    TOOL_SURVEY,
 | 
						|
                    $survey_id,
 | 
						|
                    'SurveyAdded',
 | 
						|
                    api_get_user_id()
 | 
						|
                );
 | 
						|
            }
 | 
						|
 | 
						|
            if ($values['survey_type'] == 1 && !empty($values['parent_id'])) {
 | 
						|
                self::copy_survey($values['parent_id'], $survey_id);
 | 
						|
            }
 | 
						|
 | 
						|
            Display::addFlash(
 | 
						|
                Display::return_message(
 | 
						|
                    get_lang('SurveyCreatedSuccesfully'),
 | 
						|
                    'success'
 | 
						|
                )
 | 
						|
            );
 | 
						|
            $return['id'] = $survey_id;
 | 
						|
        } else {
 | 
						|
            // Check whether the code doesn't soon exists in this language
 | 
						|
            $sql = 'SELECT 1 FROM '.$table_survey.'
 | 
						|
			        WHERE
 | 
						|
			            c_id = '.$course_id.' AND
 | 
						|
			            code = "'.Database::escape_string($values['survey_code']).'" AND
 | 
						|
			            lang = "'.Database::escape_string($values['survey_language']).'" AND
 | 
						|
			            survey_id !='.intval($values['survey_id']);
 | 
						|
            $rs = Database::query($sql);
 | 
						|
            if (Database::num_rows($rs) > 0) {
 | 
						|
                Display::addFlash(
 | 
						|
                    Display::return_message(
 | 
						|
                        get_lang('ThisSurveyCodeSoonExistsInThisLanguage'),
 | 
						|
                        'error'
 | 
						|
                    )
 | 
						|
                );
 | 
						|
                $return['type'] = 'error';
 | 
						|
                $return['id'] = isset($values['survey_id']) ? $values['survey_id'] : 0;
 | 
						|
 | 
						|
                return $return;
 | 
						|
            }
 | 
						|
 | 
						|
            if (!isset($values['anonymous'])
 | 
						|
                || (isset($values['anonymous']) && $values['anonymous'] == '')
 | 
						|
            ) {
 | 
						|
                $values['anonymous'] = 0;
 | 
						|
            }
 | 
						|
 | 
						|
            $values['shuffle'] = isset($values['shuffle']) ? $values['shuffle'] : null;
 | 
						|
            $values['one_question_per_page'] = isset($values['one_question_per_page']) ? $values['one_question_per_page'] : null;
 | 
						|
            $values['show_form_profile'] = isset($values['show_form_profile']) ? $values['show_form_profile'] : null;
 | 
						|
 | 
						|
            $extraParams = [];
 | 
						|
            $extraParams['shuffle'] = $values['shuffle'];
 | 
						|
            $extraParams['one_question_per_page'] = $values['one_question_per_page'];
 | 
						|
            $extraParams['shuffle'] = $values['shuffle'];
 | 
						|
 | 
						|
            if ($values['anonymous'] == 0) {
 | 
						|
                $extraParams['show_form_profile'] = $values['show_form_profile'];
 | 
						|
                if ($values['show_form_profile'] == 1) {
 | 
						|
                    $fields = explode(',', $values['input_name_list']);
 | 
						|
                    $field_values = '';
 | 
						|
                    foreach ($fields as &$field) {
 | 
						|
                        if ($field != '') {
 | 
						|
                            if (!isset($values[$field]) ||
 | 
						|
                                (isset($values[$field]) && $values[$field] == '')
 | 
						|
                            ) {
 | 
						|
                                $values[$field] = 0;
 | 
						|
                            }
 | 
						|
                            $field_values .= $field.':'.$values[$field].'@';
 | 
						|
                        }
 | 
						|
                    }
 | 
						|
                    $extraParams['form_fields'] = $field_values;
 | 
						|
                } else {
 | 
						|
                    $extraParams['form_fields'] = '';
 | 
						|
                }
 | 
						|
            } else {
 | 
						|
                $extraParams['show_form_profile'] = 0;
 | 
						|
                $extraParams['form_fields'] = '';
 | 
						|
            }
 | 
						|
 | 
						|
            $params = [
 | 
						|
                'title' => $values['survey_title'],
 | 
						|
                'subtitle' => $values['survey_subtitle'],
 | 
						|
                'author' => $_user['user_id'],
 | 
						|
                'lang' => $values['survey_language'],
 | 
						|
                'avail_from' => $allowSurveyAvailabilityDatetime
 | 
						|
                    ? api_get_utc_datetime($values['start_date'].':00')
 | 
						|
                    : $values['start_date'],
 | 
						|
                'avail_till' => $allowSurveyAvailabilityDatetime
 | 
						|
                    ? api_get_utc_datetime($values['end_date'].':59')
 | 
						|
                    : $values['end_date'],
 | 
						|
                'is_shared' => $shared_survey_id,
 | 
						|
                'template' => 'template',
 | 
						|
                'intro' => $values['survey_introduction'],
 | 
						|
                'surveythanks' => $values['survey_thanks'],
 | 
						|
                'anonymous' => $values['anonymous'],
 | 
						|
                'session_id' => api_get_session_id(),
 | 
						|
                'visible_results' => $values['visible_results'],
 | 
						|
            ];
 | 
						|
 | 
						|
            $params = array_merge($params, $extraParams);
 | 
						|
            Database::update(
 | 
						|
                $table_survey,
 | 
						|
                $params,
 | 
						|
                [
 | 
						|
                    'c_id = ? AND survey_id = ?' => [
 | 
						|
                        $course_id,
 | 
						|
                        $values['survey_id'],
 | 
						|
                    ],
 | 
						|
                ]
 | 
						|
            );
 | 
						|
 | 
						|
            // Update into item_property (update)
 | 
						|
            api_item_property_update(
 | 
						|
                api_get_course_info(),
 | 
						|
                TOOL_SURVEY,
 | 
						|
                $values['survey_id'],
 | 
						|
                'SurveyUpdated',
 | 
						|
                api_get_user_id()
 | 
						|
            );
 | 
						|
 | 
						|
            Display::addFlash(
 | 
						|
                Display::return_message(
 | 
						|
                    get_lang('SurveyUpdatedSuccesfully'),
 | 
						|
                    'confirmation'
 | 
						|
                )
 | 
						|
            );
 | 
						|
 | 
						|
            $return['id'] = $values['survey_id'];
 | 
						|
        }
 | 
						|
 | 
						|
        $survey_id = intval($return['id']);
 | 
						|
 | 
						|
        // Gradebook
 | 
						|
        $gradebook_option = false;
 | 
						|
        if (isset($values['survey_qualify_gradebook'])) {
 | 
						|
            $gradebook_option = $values['survey_qualify_gradebook'] > 0;
 | 
						|
        }
 | 
						|
 | 
						|
        $gradebook_link_type = 8;
 | 
						|
        $link_info = GradebookUtils::isResourceInCourseGradebook(
 | 
						|
            $courseCode,
 | 
						|
            $gradebook_link_type,
 | 
						|
            $survey_id,
 | 
						|
            $session_id
 | 
						|
        );
 | 
						|
 | 
						|
        $gradebook_link_id = isset($link_info['id']) ? $link_info['id'] : false;
 | 
						|
 | 
						|
        if ($gradebook_option) {
 | 
						|
            if ($survey_id > 0) {
 | 
						|
                $title_gradebook = ''; // Not needed here.
 | 
						|
                $description_gradebook = ''; // Not needed here.
 | 
						|
                $survey_weight = floatval($_POST['survey_weight']);
 | 
						|
                $max_score = 1;
 | 
						|
 | 
						|
                if (!$gradebook_link_id) {
 | 
						|
                    GradebookUtils::add_resource_to_course_gradebook(
 | 
						|
                        $values['category_id'],
 | 
						|
                        $courseCode,
 | 
						|
                        $gradebook_link_type,
 | 
						|
                        $survey_id,
 | 
						|
                        $title_gradebook,
 | 
						|
                        $survey_weight,
 | 
						|
                        $max_score,
 | 
						|
                        $description_gradebook,
 | 
						|
                        1,
 | 
						|
                        $session_id
 | 
						|
                    );
 | 
						|
                } else {
 | 
						|
                    GradebookUtils::updateResourceFromCourseGradebook(
 | 
						|
                        $gradebook_link_id,
 | 
						|
                        $courseCode,
 | 
						|
                        $survey_weight
 | 
						|
                    );
 | 
						|
                }
 | 
						|
            }
 | 
						|
        } else {
 | 
						|
            // Delete everything of the gradebook for this $linkId
 | 
						|
            GradebookUtils::remove_resource_from_course_gradebook($gradebook_link_id);
 | 
						|
        }
 | 
						|
 | 
						|
        return $return;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * This function stores a shared survey in the central database.
 | 
						|
     *
 | 
						|
     * @param array $values
 | 
						|
     *
 | 
						|
     * @return array $return the type of return message that has to be displayed and the message in it
 | 
						|
     *
 | 
						|
     * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
 | 
						|
     *
 | 
						|
     * @version February 2007
 | 
						|
     */
 | 
						|
    public function store_shared_survey($values)
 | 
						|
    {
 | 
						|
        $_user = api_get_user_info();
 | 
						|
        $_course = api_get_course_info();
 | 
						|
 | 
						|
        // Table definitions
 | 
						|
        $table_survey = Database::get_main_table(TABLE_MAIN_SHARED_SURVEY);
 | 
						|
 | 
						|
        if (!$values['survey_id'] ||
 | 
						|
            !is_numeric($values['survey_id']) ||
 | 
						|
            $values['survey_share']['survey_share'] == 'true'
 | 
						|
        ) {
 | 
						|
            $sql = "INSERT INTO $table_survey (code, title, subtitle, author, lang, template, intro, surveythanks, creation_date, course_code) VALUES (
 | 
						|
                    '".Database::escape_string($values['survey_code'])."',
 | 
						|
                    '".Database::escape_string($values['survey_title'])."',
 | 
						|
                    '".Database::escape_string($values['survey_subtitle'])."',
 | 
						|
                    '".intval($_user['user_id'])."',
 | 
						|
                    '".Database::escape_string($values['survey_language'])."',
 | 
						|
                    '".Database::escape_string('template')."',
 | 
						|
                    '".Database::escape_string($values['survey_introduction'])."',
 | 
						|
                    '".Database::escape_string($values['survey_thanks'])."',
 | 
						|
                    '".api_get_utc_datetime()."',
 | 
						|
                    '".$_course['id']."')";
 | 
						|
            Database::query($sql);
 | 
						|
            $return = Database::insert_id();
 | 
						|
 | 
						|
            $sql = "UPDATE $table_survey SET survey_id = $return WHERE iid = $return";
 | 
						|
            Database::query($sql);
 | 
						|
        } else {
 | 
						|
            $sql = "UPDATE $table_survey SET
 | 
						|
                        code 			= '".Database::escape_string($values['survey_code'])."',
 | 
						|
                        title 			= '".Database::escape_string($values['survey_title'])."',
 | 
						|
                        subtitle 		= '".Database::escape_string($values['survey_subtitle'])."',
 | 
						|
                        author 			= '".intval($_user['user_id'])."',
 | 
						|
                        lang 			= '".Database::escape_string($values['survey_language'])."',
 | 
						|
                        template 		= '".Database::escape_string('template')."',
 | 
						|
                        intro			= '".Database::escape_string($values['survey_introduction'])."',
 | 
						|
                        surveythanks	= '".Database::escape_string($values['survey_thanks'])."'
 | 
						|
					WHERE survey_id = '".Database::escape_string($values['survey_share']['survey_share'])."'";
 | 
						|
            Database::query($sql);
 | 
						|
            $return = $values['survey_share']['survey_share'];
 | 
						|
        }
 | 
						|
 | 
						|
        return $return;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * This function deletes a survey (and also all the question in that survey.
 | 
						|
     *
 | 
						|
     * @param int  $survey_id id of the survey that has to be deleted
 | 
						|
     * @param bool $shared
 | 
						|
     * @param int  $course_id
 | 
						|
     *
 | 
						|
     * @return true
 | 
						|
     *
 | 
						|
     * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
 | 
						|
     *
 | 
						|
     * @version January 2007
 | 
						|
     */
 | 
						|
    public static function delete_survey($survey_id, $shared = false, $course_id = 0)
 | 
						|
    {
 | 
						|
        // Database table definitions
 | 
						|
        if (empty($course_id)) {
 | 
						|
            $course_id = api_get_course_int_id();
 | 
						|
        }
 | 
						|
 | 
						|
        $survey_id = intval($survey_id);
 | 
						|
 | 
						|
        if (empty($survey_id)) {
 | 
						|
            return false;
 | 
						|
        }
 | 
						|
 | 
						|
        $course_info = api_get_course_info_by_id($course_id);
 | 
						|
        $course_id = $course_info['real_id'];
 | 
						|
 | 
						|
        $table_survey = Database::get_course_table(TABLE_SURVEY);
 | 
						|
        $table_survey_question_group = Database::get_course_table(TABLE_SURVEY_QUESTION_GROUP);
 | 
						|
 | 
						|
        if ($shared) {
 | 
						|
            $table_survey = Database::get_main_table(TABLE_MAIN_SHARED_SURVEY);
 | 
						|
            // Deleting the survey
 | 
						|
            $sql = "DELETE FROM $table_survey
 | 
						|
                    WHERE survey_id='".$survey_id."'";
 | 
						|
            Database::query($sql);
 | 
						|
        } else {
 | 
						|
            $sql = "DELETE FROM $table_survey
 | 
						|
                    WHERE c_id = $course_id AND survey_id='".$survey_id."'";
 | 
						|
            Database::query($sql);
 | 
						|
        }
 | 
						|
 | 
						|
        // Deleting groups of this survey
 | 
						|
        $sql = "DELETE FROM $table_survey_question_group
 | 
						|
                WHERE c_id = $course_id AND survey_id='".$survey_id."'";
 | 
						|
        Database::query($sql);
 | 
						|
 | 
						|
        // Deleting the questions of the survey
 | 
						|
        self::delete_all_survey_questions($survey_id, $shared);
 | 
						|
 | 
						|
        // Update into item_property (delete)
 | 
						|
        api_item_property_update(
 | 
						|
            $course_info,
 | 
						|
            TOOL_SURVEY,
 | 
						|
            $survey_id,
 | 
						|
            'SurveyDeleted',
 | 
						|
            api_get_user_id()
 | 
						|
        );
 | 
						|
 | 
						|
        Skill::deleteSkillsFromItem($survey_id, ITEM_TYPE_SURVEY);
 | 
						|
 | 
						|
        return true;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * @param int $survey_id
 | 
						|
     * @param int $new_survey_id
 | 
						|
     * @param int $targetCourseId
 | 
						|
     *
 | 
						|
     * @return bool
 | 
						|
     */
 | 
						|
    public static function copy_survey(
 | 
						|
        $survey_id,
 | 
						|
        $new_survey_id = null,
 | 
						|
        $targetCourseId = null
 | 
						|
    ) {
 | 
						|
        $course_id = api_get_course_int_id();
 | 
						|
        if (!$targetCourseId) {
 | 
						|
            $targetCourseId = $course_id;
 | 
						|
        }
 | 
						|
 | 
						|
        // Database table definitions
 | 
						|
        $table_survey = Database::get_course_table(TABLE_SURVEY);
 | 
						|
        $table_survey_question_group = Database::get_course_table(TABLE_SURVEY_QUESTION_GROUP);
 | 
						|
        $table_survey_question = Database::get_course_table(TABLE_SURVEY_QUESTION);
 | 
						|
        $table_survey_options = Database::get_course_table(TABLE_SURVEY_QUESTION_OPTION);
 | 
						|
        $survey_id = intval($survey_id);
 | 
						|
 | 
						|
        // Get groups
 | 
						|
        $survey_data = self::get_survey($survey_id, 0, null, true);
 | 
						|
        if (empty($survey_data)) {
 | 
						|
            return true;
 | 
						|
        }
 | 
						|
 | 
						|
        if (empty($new_survey_id)) {
 | 
						|
            $params = $survey_data;
 | 
						|
            $params['code'] = self::generate_unique_code($params['code']);
 | 
						|
            $params['c_id'] = $targetCourseId;
 | 
						|
            unset($params['survey_id']);
 | 
						|
            $params['session_id'] = api_get_session_id();
 | 
						|
            $params['title'] = $params['title'].' '.get_lang('Copy');
 | 
						|
            unset($params['iid']);
 | 
						|
            $new_survey_id = Database::insert($table_survey, $params);
 | 
						|
 | 
						|
            if ($new_survey_id) {
 | 
						|
                $sql = "UPDATE $table_survey SET survey_id = $new_survey_id
 | 
						|
                        WHERE iid = $new_survey_id";
 | 
						|
                Database::query($sql);
 | 
						|
 | 
						|
                // Insert into item_property
 | 
						|
                api_item_property_update(
 | 
						|
                    api_get_course_info(),
 | 
						|
                    TOOL_SURVEY,
 | 
						|
                    $new_survey_id,
 | 
						|
                    'SurveyAdded',
 | 
						|
                    api_get_user_id()
 | 
						|
                );
 | 
						|
            }
 | 
						|
        } else {
 | 
						|
            $new_survey_id = intval($new_survey_id);
 | 
						|
        }
 | 
						|
 | 
						|
        $sql = "SELECT * FROM $table_survey_question_group
 | 
						|
                WHERE c_id = $course_id AND survey_id='".$survey_id."'";
 | 
						|
        $res = Database::query($sql);
 | 
						|
        while ($row = Database::fetch_array($res, 'ASSOC')) {
 | 
						|
            $params = [
 | 
						|
                'c_id' => $targetCourseId,
 | 
						|
                'name' => $row['name'],
 | 
						|
                'description' => $row['description'],
 | 
						|
                'survey_id' => $new_survey_id,
 | 
						|
            ];
 | 
						|
            $insertId = Database::insert($table_survey_question_group, $params);
 | 
						|
 | 
						|
            $sql = "UPDATE $table_survey_question_group SET id = iid
 | 
						|
                    WHERE iid = $insertId";
 | 
						|
            Database::query($sql);
 | 
						|
 | 
						|
            $group_id[$row['id']] = $insertId;
 | 
						|
        }
 | 
						|
 | 
						|
        // Get questions
 | 
						|
        $sql = "SELECT * FROM $table_survey_question
 | 
						|
                WHERE c_id = $course_id AND survey_id='".$survey_id."'";
 | 
						|
        $res = Database::query($sql);
 | 
						|
        while ($row = Database::fetch_array($res, 'ASSOC')) {
 | 
						|
            $params = [
 | 
						|
                'c_id' => $targetCourseId,
 | 
						|
                'survey_id' => $new_survey_id,
 | 
						|
                'survey_question' => $row['survey_question'],
 | 
						|
                'survey_question_comment' => $row['survey_question_comment'],
 | 
						|
                'type' => $row['type'],
 | 
						|
                'display' => $row['display'],
 | 
						|
                'sort' => $row['sort'],
 | 
						|
                'shared_question_id' => $row['shared_question_id'],
 | 
						|
                'max_value' => $row['max_value'],
 | 
						|
                'survey_group_pri' => $row['survey_group_pri'],
 | 
						|
                'survey_group_sec1' => $row['survey_group_sec1'],
 | 
						|
                'survey_group_sec2' => $row['survey_group_sec2'],
 | 
						|
            ];
 | 
						|
            $insertId = Database::insert($table_survey_question, $params);
 | 
						|
            $sql = "UPDATE $table_survey_question SET question_id = iid WHERE iid = $insertId";
 | 
						|
            Database::query($sql);
 | 
						|
            $question_id[$row['question_id']] = $insertId;
 | 
						|
        }
 | 
						|
 | 
						|
        // Get questions options
 | 
						|
        $sql = "SELECT * FROM $table_survey_options
 | 
						|
                WHERE c_id = $course_id AND survey_id='".$survey_id."'";
 | 
						|
 | 
						|
        $res = Database::query($sql);
 | 
						|
        while ($row = Database::fetch_array($res, 'ASSOC')) {
 | 
						|
            $params = [
 | 
						|
                'c_id' => $targetCourseId,
 | 
						|
                'question_id' => $question_id[$row['question_id']],
 | 
						|
                'survey_id' => $new_survey_id,
 | 
						|
                'option_text' => $row['option_text'],
 | 
						|
                'sort' => $row['sort'],
 | 
						|
                'value' => $row['value'],
 | 
						|
            ];
 | 
						|
            $insertId = Database::insert($table_survey_options, $params);
 | 
						|
 | 
						|
            $sql = "UPDATE $table_survey_options SET question_option_id = $insertId
 | 
						|
                    WHERE iid = $insertId";
 | 
						|
            Database::query($sql);
 | 
						|
        }
 | 
						|
 | 
						|
        return $new_survey_id;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * This function duplicates a survey (and also all the question in that survey.
 | 
						|
     *
 | 
						|
     * @param int $surveyId id of the survey that has to be duplicated
 | 
						|
     * @param int $courseId id of the course which survey has to be duplicated
 | 
						|
     *
 | 
						|
     * @return true
 | 
						|
     *
 | 
						|
     * @author Eric Marguin <e.marguin@elixir-interactive.com>, Elixir Interactive
 | 
						|
     *
 | 
						|
     * @version October 2007
 | 
						|
     */
 | 
						|
    public static function empty_survey($surveyId, $courseId = 0)
 | 
						|
    {
 | 
						|
        // Database table definitions
 | 
						|
        $table_survey_invitation = Database::get_course_table(TABLE_SURVEY_INVITATION);
 | 
						|
        $table_survey_answer = Database::get_course_table(TABLE_SURVEY_ANSWER);
 | 
						|
        $table_survey = Database::get_course_table(TABLE_SURVEY);
 | 
						|
 | 
						|
        $courseId = (int) $courseId;
 | 
						|
        $courseId = empty($courseId) ? api_get_course_int_id() : $courseId;
 | 
						|
        $surveyId = (int) $surveyId;
 | 
						|
 | 
						|
        $datas = self::get_survey($surveyId);
 | 
						|
        $session_where = '';
 | 
						|
        if (api_get_session_id() != 0) {
 | 
						|
            $session_where = ' AND session_id = "'.api_get_session_id().'" ';
 | 
						|
        }
 | 
						|
 | 
						|
        $sql = 'DELETE FROM '.$table_survey_invitation.'
 | 
						|
		        WHERE
 | 
						|
		            c_id = '.$courseId.' AND
 | 
						|
		            survey_code = "'.Database::escape_string($datas['code']).'" '.$session_where.' ';
 | 
						|
        Database::query($sql);
 | 
						|
 | 
						|
        $sql = 'DELETE FROM '.$table_survey_answer.'
 | 
						|
		        WHERE c_id = '.$courseId.' AND survey_id='.$surveyId;
 | 
						|
        Database::query($sql);
 | 
						|
 | 
						|
        $sql = 'UPDATE '.$table_survey.' SET invited=0, answered=0
 | 
						|
		        WHERE c_id = '.$courseId.' AND survey_id='.$surveyId;
 | 
						|
        Database::query($sql);
 | 
						|
 | 
						|
        return true;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * This function recalculates the number of people who have taken the survey (=filled at least one question).
 | 
						|
     *
 | 
						|
     * @param array  $survey_data
 | 
						|
     * @param array  $user
 | 
						|
     * @param string $survey_code
 | 
						|
     *
 | 
						|
     * @return bool
 | 
						|
     *
 | 
						|
     * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
 | 
						|
     *
 | 
						|
     * @version February 2007
 | 
						|
     */
 | 
						|
    public static function update_survey_answered($survey_data, $user, $survey_code)
 | 
						|
    {
 | 
						|
        // Database table definitions
 | 
						|
        $table_survey = Database::get_course_table(TABLE_SURVEY);
 | 
						|
        $table_survey_invitation = Database::get_course_table(TABLE_SURVEY_INVITATION);
 | 
						|
 | 
						|
        $survey_id = $survey_data['survey_id'];
 | 
						|
        $course_id = $survey_data['c_id'];
 | 
						|
        $session_id = $survey_data['session_id'];
 | 
						|
 | 
						|
        // Getting a list with all the people who have filled the survey
 | 
						|
        $people_filled = self::get_people_who_filled_survey($survey_id, false, $course_id);
 | 
						|
 | 
						|
        $number = intval(count($people_filled));
 | 
						|
 | 
						|
        // Storing this value in the survey table
 | 
						|
        $sql = "UPDATE $table_survey
 | 
						|
		        SET answered = $number
 | 
						|
		        WHERE
 | 
						|
                    c_id = $course_id AND
 | 
						|
		            survey_id = ".intval($survey_id);
 | 
						|
        Database::query($sql);
 | 
						|
 | 
						|
        $allow = api_get_configuration_value('survey_answered_at_field');
 | 
						|
        // Requires DB change:
 | 
						|
        // ALTER TABLE c_survey_invitation ADD answered_at DATETIME DEFAULT NULL;
 | 
						|
        $answeredAt = '';
 | 
						|
        if ($allow) {
 | 
						|
            $answeredAt = "answered_at = '".api_get_utc_datetime()."',";
 | 
						|
        }
 | 
						|
 | 
						|
        // Storing that the user has finished the survey.
 | 
						|
        $sql = "UPDATE $table_survey_invitation
 | 
						|
            SET $answeredAt
 | 
						|
                answered = 1
 | 
						|
                WHERE
 | 
						|
                    c_id = $course_id AND
 | 
						|
                    session_id = $session_id AND
 | 
						|
                    user ='".Database::escape_string($user)."' AND
 | 
						|
                    survey_code='".Database::escape_string($survey_code)."'";
 | 
						|
        Database::query($sql);
 | 
						|
    }
 | 
						|
 | 
						|
    /*
 | 
						|
     * SURVEY QUESTION FUNCTIONS
 | 
						|
     */
 | 
						|
 | 
						|
    /**
 | 
						|
     * This function return the "icon" of the question type.
 | 
						|
     *
 | 
						|
     * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
 | 
						|
     *
 | 
						|
     * @version February 2007
 | 
						|
     */
 | 
						|
    public static function icon_question($type)
 | 
						|
    {
 | 
						|
        // the possible question types
 | 
						|
        $possible_types = [
 | 
						|
            'personality',
 | 
						|
            'yesno',
 | 
						|
            'multiplechoice',
 | 
						|
            'multipleresponse',
 | 
						|
            'open',
 | 
						|
            'dropdown',
 | 
						|
            'comment',
 | 
						|
            'pagebreak',
 | 
						|
            'percentage',
 | 
						|
            'score',
 | 
						|
        ];
 | 
						|
 | 
						|
        // the images array
 | 
						|
        $icon_question = [
 | 
						|
            'yesno' => 'yesno.png',
 | 
						|
            'personality' => 'yesno.png',
 | 
						|
            'multiplechoice' => 'mcua.png',
 | 
						|
            'multipleresponse' => 'mcma.png',
 | 
						|
            'open' => 'open_answer.png',
 | 
						|
            'dropdown' => 'dropdown.png',
 | 
						|
            'percentage' => 'percentagequestion.png',
 | 
						|
            'score' => 'scorequestion.png',
 | 
						|
            'comment' => 'commentquestion.png',
 | 
						|
            'pagebreak' => 'page_end.png',
 | 
						|
        ];
 | 
						|
 | 
						|
        if (in_array($type, $possible_types)) {
 | 
						|
            return $icon_question[$type];
 | 
						|
        } else {
 | 
						|
            return false;
 | 
						|
        }
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * This function retrieves all the information of a question.
 | 
						|
     *
 | 
						|
     * @param int  $question_id the id of the question
 | 
						|
     * @param bool $shared
 | 
						|
     *
 | 
						|
     * @return array
 | 
						|
     *
 | 
						|
     * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
 | 
						|
     *
 | 
						|
     * @version January 2007
 | 
						|
     *
 | 
						|
     * @todo one sql call should do the trick
 | 
						|
     */
 | 
						|
    public static function get_question($question_id, $shared = false)
 | 
						|
    {
 | 
						|
        // Table definitions
 | 
						|
        $tbl_survey_question = Database::get_course_table(TABLE_SURVEY_QUESTION);
 | 
						|
        $table_survey_question_option = Database::get_course_table(TABLE_SURVEY_QUESTION_OPTION);
 | 
						|
        $course_id = api_get_course_int_id();
 | 
						|
 | 
						|
        $sql = "SELECT * FROM $tbl_survey_question
 | 
						|
                WHERE c_id = $course_id AND question_id='".intval($question_id)."'
 | 
						|
                ORDER BY `sort` ";
 | 
						|
 | 
						|
        $sqlOption = "  SELECT * FROM $table_survey_question_option
 | 
						|
                        WHERE c_id = $course_id AND question_id='".intval($question_id)."'
 | 
						|
                        ORDER BY `sort` ";
 | 
						|
 | 
						|
        if ($shared) {
 | 
						|
            $tbl_survey_question = Database::get_main_table(TABLE_MAIN_SHARED_SURVEY_QUESTION);
 | 
						|
            $table_survey_question_option = Database::get_main_table(TABLE_MAIN_SHARED_SURVEY_QUESTION_OPTION);
 | 
						|
 | 
						|
            $sql = "SELECT * FROM $tbl_survey_question
 | 
						|
                    WHERE question_id='".intval($question_id)."'
 | 
						|
                    ORDER BY `sort` ";
 | 
						|
            $sqlOption = "SELECT * FROM $table_survey_question_option
 | 
						|
                          WHERE question_id='".intval($question_id)."'
 | 
						|
                          ORDER BY `sort` ";
 | 
						|
        }
 | 
						|
 | 
						|
        // Getting the information of the question
 | 
						|
 | 
						|
        $result = Database::query($sql);
 | 
						|
        $row = Database::fetch_array($result, 'ASSOC');
 | 
						|
 | 
						|
        $return['survey_id'] = $row['survey_id'];
 | 
						|
        $return['question_id'] = $row['question_id'];
 | 
						|
        $return['type'] = $row['type'];
 | 
						|
        $return['question'] = $row['survey_question'];
 | 
						|
        $return['horizontalvertical'] = $row['display'];
 | 
						|
        $return['shared_question_id'] = $row['shared_question_id'];
 | 
						|
        $return['maximum_score'] = $row['max_value'];
 | 
						|
        $return['is_required'] = api_get_configuration_value('allow_required_survey_questions')
 | 
						|
            ? $row['is_required']
 | 
						|
            : false;
 | 
						|
 | 
						|
        if ($row['survey_group_pri'] != 0) {
 | 
						|
            $return['assigned'] = $row['survey_group_pri'];
 | 
						|
            $return['choose'] = 1;
 | 
						|
        } else {
 | 
						|
            $return['assigned1'] = $row['survey_group_sec1'];
 | 
						|
            $return['assigned2'] = $row['survey_group_sec2'];
 | 
						|
            $return['choose'] = 2;
 | 
						|
        }
 | 
						|
 | 
						|
        // Getting the information of the question options
 | 
						|
        $result = Database::query($sqlOption);
 | 
						|
        while ($row = Database::fetch_array($result, 'ASSOC')) {
 | 
						|
            /** @todo this should be renamed to options instead of answers */
 | 
						|
            $return['answers'][] = $row['option_text'];
 | 
						|
            $return['values'][] = $row['value'];
 | 
						|
 | 
						|
            /** @todo this can be done more elegantly (used in reporting) */
 | 
						|
            $return['answersid'][] = $row['question_option_id'];
 | 
						|
        }
 | 
						|
 | 
						|
        return $return;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * This function gets all the question of any given survey.
 | 
						|
     *
 | 
						|
     * @param int $surveyId the id of the survey
 | 
						|
     * @param int $courseId
 | 
						|
     *
 | 
						|
     * @return array containing all the questions of the survey
 | 
						|
     *
 | 
						|
     * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
 | 
						|
     *
 | 
						|
     * @version February 2007
 | 
						|
     *
 | 
						|
     * @todo one sql call should do the trick
 | 
						|
     */
 | 
						|
    public static function get_questions($surveyId, $courseId = 0)
 | 
						|
    {
 | 
						|
        $tbl_survey_question = Database::get_course_table(TABLE_SURVEY_QUESTION);
 | 
						|
        $table_survey_question_option = Database::get_course_table(TABLE_SURVEY_QUESTION_OPTION);
 | 
						|
 | 
						|
        $courseId = (int) $courseId;
 | 
						|
        $surveyId = (int) $surveyId;
 | 
						|
 | 
						|
        if (empty($courseId)) {
 | 
						|
            $courseId = api_get_course_int_id();
 | 
						|
        }
 | 
						|
 | 
						|
        // Getting the information of the question
 | 
						|
        $sql = "SELECT * FROM $tbl_survey_question
 | 
						|
		        WHERE c_id = $courseId AND survey_id='".$surveyId."'";
 | 
						|
        $result = Database::query($sql);
 | 
						|
        $return = [];
 | 
						|
        while ($row = Database::fetch_array($result, 'ASSOC')) {
 | 
						|
            $return[$row['question_id']]['survey_id'] = $row['survey_id'];
 | 
						|
            $return[$row['question_id']]['question_id'] = $row['question_id'];
 | 
						|
            $return[$row['question_id']]['type'] = $row['type'];
 | 
						|
            $return[$row['question_id']]['question'] = $row['survey_question'];
 | 
						|
            $return[$row['question_id']]['horizontalvertical'] = $row['display'];
 | 
						|
            $return[$row['question_id']]['maximum_score'] = $row['max_value'];
 | 
						|
            $return[$row['question_id']]['sort'] = $row['sort'];
 | 
						|
            $return[$row['question_id']]['survey_question_comment'] = $row['survey_question_comment'];
 | 
						|
        }
 | 
						|
 | 
						|
        // Getting the information of the question options
 | 
						|
        $sql = "SELECT * FROM $table_survey_question_option
 | 
						|
		        WHERE c_id = $courseId AND survey_id='".$surveyId."'";
 | 
						|
        $result = Database::query($sql);
 | 
						|
        while ($row = Database::fetch_array($result, 'ASSOC')) {
 | 
						|
            $return[$row['question_id']]['answers'][] = $row['option_text'];
 | 
						|
        }
 | 
						|
 | 
						|
        return $return;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * This function saves a question in the database.
 | 
						|
     * This can be either an update of an existing survey or storing a new survey.
 | 
						|
     *
 | 
						|
     * @param array $survey_data
 | 
						|
     * @param array $form_content all the information of the form
 | 
						|
     *
 | 
						|
     * @return string
 | 
						|
     *
 | 
						|
     * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
 | 
						|
     *
 | 
						|
     * @version January 2007
 | 
						|
     */
 | 
						|
    public static function save_question($survey_data, $form_content)
 | 
						|
    {
 | 
						|
        $return_message = '';
 | 
						|
        if (strlen($form_content['question']) > 1) {
 | 
						|
            // Checks length of the question
 | 
						|
            $empty_answer = false;
 | 
						|
 | 
						|
            if ($survey_data['survey_type'] == 1) {
 | 
						|
                if (empty($form_content['choose'])) {
 | 
						|
                    $return_message = 'PleaseChooseACondition';
 | 
						|
 | 
						|
                    return $return_message;
 | 
						|
                }
 | 
						|
 | 
						|
                if (($form_content['choose'] == 2) &&
 | 
						|
                    ($form_content['assigned1'] == $form_content['assigned2'])
 | 
						|
                ) {
 | 
						|
                    $return_message = 'ChooseDifferentCategories';
 | 
						|
 | 
						|
                    return $return_message;
 | 
						|
                }
 | 
						|
            }
 | 
						|
 | 
						|
            if ($form_content['type'] != 'percentage') {
 | 
						|
                if (isset($form_content['answers'])) {
 | 
						|
                    for ($i = 0; $i < count($form_content['answers']); $i++) {
 | 
						|
                        if (strlen($form_content['answers'][$i]) < 1) {
 | 
						|
                            $empty_answer = true;
 | 
						|
                            break;
 | 
						|
                        }
 | 
						|
                    }
 | 
						|
                }
 | 
						|
            }
 | 
						|
 | 
						|
            if ($form_content['type'] == 'score') {
 | 
						|
                if (strlen($form_content['maximum_score']) < 1) {
 | 
						|
                    $empty_answer = true;
 | 
						|
                }
 | 
						|
            }
 | 
						|
            $course_id = api_get_course_int_id();
 | 
						|
            if (!$empty_answer) {
 | 
						|
                // Table definitions
 | 
						|
                $tbl_survey_question = Database::get_course_table(TABLE_SURVEY_QUESTION);
 | 
						|
 | 
						|
                // Getting all the information of the survey
 | 
						|
                $survey_data = self::get_survey($form_content['survey_id']);
 | 
						|
 | 
						|
                // Storing the question in the shared database
 | 
						|
                if (is_numeric($survey_data['survey_share']) && $survey_data['survey_share'] != 0) {
 | 
						|
                    $shared_question_id = self::save_shared_question($form_content, $survey_data);
 | 
						|
                    $form_content['shared_question_id'] = $shared_question_id;
 | 
						|
                }
 | 
						|
 | 
						|
                // Storing a new question
 | 
						|
                if ($form_content['question_id'] == '' || !is_numeric($form_content['question_id'])) {
 | 
						|
                    // Finding the max sort order of the questions in the given survey
 | 
						|
                    $sql = "SELECT max(sort) AS max_sort
 | 
						|
					        FROM $tbl_survey_question
 | 
						|
                            WHERE c_id = $course_id AND survey_id='".intval($form_content['survey_id'])."'";
 | 
						|
                    $result = Database::query($sql);
 | 
						|
                    $row = Database::fetch_array($result, 'ASSOC');
 | 
						|
                    $max_sort = $row['max_sort'];
 | 
						|
 | 
						|
                    // Some variables defined for survey-test type
 | 
						|
                    $extraParams = [];
 | 
						|
                    if (isset($_POST['choose'])) {
 | 
						|
                        if ($_POST['choose'] == 1) {
 | 
						|
                            $extraParams['survey_group_pri'] = $_POST['assigned'];
 | 
						|
                        } elseif ($_POST['choose'] == 2) {
 | 
						|
                            $extraParams['survey_group_sec1'] = $_POST['assigned1'];
 | 
						|
                            $extraParams['survey_group_sec2'] = $_POST['assigned2'];
 | 
						|
                        }
 | 
						|
                    }
 | 
						|
 | 
						|
                    $questionComment = isset($form_content['question_comment'])
 | 
						|
                        ? $form_content['question_comment']
 | 
						|
                        : '';
 | 
						|
                    $maxScore = isset($form_content['maximum_score']) ? $form_content['maximum_score'] : '';
 | 
						|
                    $display = isset($form_content['horizontalvertical']) ? $form_content['horizontalvertical'] : '';
 | 
						|
 | 
						|
                    $params = [
 | 
						|
                        'c_id' => $course_id,
 | 
						|
                        'survey_id' => $form_content['survey_id'],
 | 
						|
                        'survey_question' => $form_content['question'],
 | 
						|
                        'survey_question_comment' => $questionComment,
 | 
						|
                        'type' => $form_content['type'],
 | 
						|
                        'display' => $display,
 | 
						|
                        'sort' => $max_sort + 1,
 | 
						|
                        'shared_question_id' => $form_content['shared_question_id'],
 | 
						|
                        'max_value' => $maxScore,
 | 
						|
                    ];
 | 
						|
 | 
						|
                    if (api_get_configuration_value('allow_required_survey_questions')) {
 | 
						|
                        $params['is_required'] = isset($form_content['is_required']);
 | 
						|
                    }
 | 
						|
 | 
						|
                    $params = array_merge($params, $extraParams);
 | 
						|
                    $question_id = Database::insert($tbl_survey_question, $params);
 | 
						|
                    if ($question_id) {
 | 
						|
                        $sql = "UPDATE $tbl_survey_question SET question_id = $question_id
 | 
						|
                                WHERE iid = $question_id";
 | 
						|
                        Database::query($sql);
 | 
						|
 | 
						|
                        $form_content['question_id'] = $question_id;
 | 
						|
                        $return_message = 'QuestionAdded';
 | 
						|
                    }
 | 
						|
                } else {
 | 
						|
                    // Updating an existing question
 | 
						|
                    $extraParams = [];
 | 
						|
                    if (isset($_POST['choose'])) {
 | 
						|
                        if ($_POST['choose'] == 1) {
 | 
						|
                            $extraParams['survey_group_pri'] = $_POST['assigned'];
 | 
						|
                            $extraParams['survey_group_sec1'] = 0;
 | 
						|
                            $extraParams['survey_group_sec2'] = 0;
 | 
						|
                        } elseif ($_POST['choose'] == 2) {
 | 
						|
                            $extraParams['survey_group_pri'] = 0;
 | 
						|
                            $extraParams['survey_group_sec1'] = $_POST['assigned1'];
 | 
						|
                            $extraParams['survey_group_sec2'] = $_POST['assigned2'];
 | 
						|
                        }
 | 
						|
                    }
 | 
						|
 | 
						|
                    $maxScore = isset($form_content['maximum_score']) ? $form_content['maximum_score'] : null;
 | 
						|
                    $questionComment = isset($form_content['question_comment'])
 | 
						|
                        ? $form_content['question_comment']
 | 
						|
                        : null;
 | 
						|
 | 
						|
                    // Adding the question to the survey_question table
 | 
						|
                    $params = [
 | 
						|
                        'survey_question' => $form_content['question'],
 | 
						|
                        'survey_question_comment' => $questionComment,
 | 
						|
                        'display' => $form_content['horizontalvertical'],
 | 
						|
                    ];
 | 
						|
 | 
						|
                    if (api_get_configuration_value('allow_required_survey_questions')) {
 | 
						|
                        $params['is_required'] = isset($form_content['is_required']);
 | 
						|
                    }
 | 
						|
 | 
						|
                    $params = array_merge($params, $extraParams);
 | 
						|
 | 
						|
                    Database::update(
 | 
						|
                        $tbl_survey_question,
 | 
						|
                        $params,
 | 
						|
                        [
 | 
						|
                            'c_id = ? AND question_id = ?' => [
 | 
						|
                                $course_id,
 | 
						|
                                $form_content['question_id'],
 | 
						|
                            ],
 | 
						|
                        ]
 | 
						|
                    );
 | 
						|
 | 
						|
                    $return_message = 'QuestionUpdated';
 | 
						|
                }
 | 
						|
 | 
						|
                if (!empty($form_content['survey_id'])) {
 | 
						|
                    //Updating survey
 | 
						|
                    api_item_property_update(
 | 
						|
                        api_get_course_info(),
 | 
						|
                        TOOL_SURVEY,
 | 
						|
                        $form_content['survey_id'],
 | 
						|
                        'SurveyUpdated',
 | 
						|
                        api_get_user_id()
 | 
						|
                    );
 | 
						|
                }
 | 
						|
 | 
						|
                // Storing the options of the question
 | 
						|
                self::save_question_options($form_content, $survey_data);
 | 
						|
            } else {
 | 
						|
                $return_message = 'PleasFillAllAnswer';
 | 
						|
            }
 | 
						|
        } else {
 | 
						|
            $return_message = 'PleaseEnterAQuestion';
 | 
						|
        }
 | 
						|
 | 
						|
        if (!empty($return_message)) {
 | 
						|
            Display::addFlash(Display::return_message(get_lang($return_message)));
 | 
						|
        }
 | 
						|
 | 
						|
        return $return_message;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * This function saves the question in the shared database.
 | 
						|
     *
 | 
						|
     * @param array $form_content all the information of the form
 | 
						|
     * @param array $survey_data  all the information of the survey
 | 
						|
     *
 | 
						|
     * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
 | 
						|
     *
 | 
						|
     * @version February 2007
 | 
						|
     *
 | 
						|
     * @return int
 | 
						|
     *
 | 
						|
     * @todo editing of a shared question
 | 
						|
     */
 | 
						|
    public function save_shared_question($form_content, $survey_data)
 | 
						|
    {
 | 
						|
        $_course = api_get_course_info();
 | 
						|
 | 
						|
        // Table definitions
 | 
						|
        $tbl_survey_question = Database::get_main_table(TABLE_MAIN_SHARED_SURVEY_QUESTION);
 | 
						|
 | 
						|
        // Storing a new question
 | 
						|
        if ($form_content['shared_question_id'] == '' ||
 | 
						|
            !is_numeric($form_content['shared_question_id'])
 | 
						|
        ) {
 | 
						|
            // Finding the max sort order of the questions in the given survey
 | 
						|
            $sql = "SELECT max(sort) AS max_sort FROM $tbl_survey_question
 | 
						|
                    WHERE survey_id='".intval($survey_data['survey_share'])."'
 | 
						|
                    AND code='".Database::escape_string($_course['id'])."'";
 | 
						|
            $result = Database::query($sql);
 | 
						|
            $row = Database::fetch_array($result, 'ASSOC');
 | 
						|
            $max_sort = $row['max_sort'];
 | 
						|
 | 
						|
            // Adding the question to the survey_question table
 | 
						|
            $sql = "INSERT INTO $tbl_survey_question (survey_id, survey_question, survey_question_comment, type, display, sort, code) VALUES (
 | 
						|
                    '".Database::escape_string($survey_data['survey_share'])."',
 | 
						|
                    '".Database::escape_string($form_content['question'])."',
 | 
						|
                    '".Database::escape_string($form_content['question_comment'])."',
 | 
						|
                    '".Database::escape_string($form_content['type'])."',
 | 
						|
                    '".Database::escape_string($form_content['horizontalvertical'])."',
 | 
						|
                    '".Database::escape_string($max_sort + 1)."',
 | 
						|
                    '".Database::escape_string($_course['id'])."')";
 | 
						|
            Database::query($sql);
 | 
						|
            $shared_question_id = Database::insert_id();
 | 
						|
        } else {
 | 
						|
            // Updating an existing question
 | 
						|
            // adding the question to the survey_question table
 | 
						|
            $sql = "UPDATE $tbl_survey_question SET
 | 
						|
                        survey_question = '".Database::escape_string($form_content['question'])."',
 | 
						|
                        survey_question_comment = '".Database::escape_string($form_content['question_comment'])."',
 | 
						|
                        display = '".Database::escape_string($form_content['horizontalvertical'])."'
 | 
						|
                    WHERE
 | 
						|
                        question_id = '".intval($form_content['shared_question_id'])."' AND
 | 
						|
                        code = '".Database::escape_string($_course['id'])."'";
 | 
						|
            Database::query($sql);
 | 
						|
            $shared_question_id = $form_content['shared_question_id'];
 | 
						|
        }
 | 
						|
 | 
						|
        return $shared_question_id;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * This functions moves a question of a survey up or down.
 | 
						|
     *
 | 
						|
     * @param string $direction
 | 
						|
     * @param int    $survey_question_id
 | 
						|
     * @param int    $survey_id
 | 
						|
     *
 | 
						|
     * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
 | 
						|
     *
 | 
						|
     * @version January 2007
 | 
						|
     */
 | 
						|
    public static function move_survey_question(
 | 
						|
        $direction,
 | 
						|
        $survey_question_id,
 | 
						|
        $survey_id
 | 
						|
    ) {
 | 
						|
        // Table definition
 | 
						|
        $table_survey_question = Database::get_course_table(TABLE_SURVEY_QUESTION);
 | 
						|
        $course_id = api_get_course_int_id();
 | 
						|
 | 
						|
        if ($direction == 'moveup') {
 | 
						|
            $sort = 'DESC';
 | 
						|
        }
 | 
						|
        if ($direction == 'movedown') {
 | 
						|
            $sort = 'ASC';
 | 
						|
        }
 | 
						|
 | 
						|
        // Finding the two questions that needs to be swapped
 | 
						|
        $sql = "SELECT * FROM $table_survey_question
 | 
						|
		        WHERE c_id = $course_id AND survey_id='".Database::escape_string($survey_id)."'
 | 
						|
		        ORDER BY sort $sort";
 | 
						|
        $result = Database::query($sql);
 | 
						|
        $found = false;
 | 
						|
        while ($row = Database::fetch_array($result, 'ASSOC')) {
 | 
						|
            if ($found) {
 | 
						|
                $question_id_two = $row['question_id'];
 | 
						|
                $question_sort_two = $row['sort'];
 | 
						|
                $found = false;
 | 
						|
            }
 | 
						|
            if ($row['question_id'] == $survey_question_id) {
 | 
						|
                $found = true;
 | 
						|
                $question_id_one = $row['question_id'];
 | 
						|
                $question_sort_one = $row['sort'];
 | 
						|
            }
 | 
						|
        }
 | 
						|
 | 
						|
        $sql1 = "UPDATE $table_survey_question 
 | 
						|
                SET sort = '".Database::escape_string($question_sort_two)."'
 | 
						|
		        WHERE c_id = $course_id AND  question_id='".intval($question_id_one)."'";
 | 
						|
        Database::query($sql1);
 | 
						|
        $sql2 = "UPDATE $table_survey_question 
 | 
						|
                SET sort = '".Database::escape_string($question_sort_one)."'
 | 
						|
		        WHERE c_id = $course_id AND question_id='".intval($question_id_two)."'";
 | 
						|
        Database::query($sql2);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * This function deletes all the questions of a given survey
 | 
						|
     * This function is normally only called when a survey is deleted.
 | 
						|
     *
 | 
						|
     * @param int $survey_id the id of the survey that has to be deleted
 | 
						|
     *
 | 
						|
     * @return bool
 | 
						|
     *
 | 
						|
     * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
 | 
						|
     *
 | 
						|
     * @version January 2007
 | 
						|
     */
 | 
						|
    public static function delete_all_survey_questions($survey_id, $shared = false)
 | 
						|
    {
 | 
						|
        $course_id = api_get_course_int_id();
 | 
						|
 | 
						|
        // Table definitions
 | 
						|
        $table_survey_question = Database::get_course_table(TABLE_SURVEY_QUESTION);
 | 
						|
        $course_condition = " c_id = $course_id AND ";
 | 
						|
        if ($shared) {
 | 
						|
            $course_condition = '';
 | 
						|
            $table_survey_question = Database::get_main_table(TABLE_MAIN_SHARED_SURVEY_QUESTION);
 | 
						|
        }
 | 
						|
 | 
						|
        $sql = "DELETE FROM $table_survey_question
 | 
						|
		        WHERE $course_condition survey_id='".intval($survey_id)."'";
 | 
						|
 | 
						|
        // Deleting the survey questions
 | 
						|
        Database::query($sql);
 | 
						|
 | 
						|
        // Deleting all the options of the questions of the survey
 | 
						|
        self::delete_all_survey_questions_options($survey_id, $shared);
 | 
						|
 | 
						|
        // Deleting all the answers on this survey
 | 
						|
        self::delete_all_survey_answers($survey_id);
 | 
						|
 | 
						|
        return true;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * This function deletes a survey question and all its options.
 | 
						|
     *
 | 
						|
     * @param int  $survey_id   the id of the survey
 | 
						|
     * @param int  $question_id the id of the question
 | 
						|
     * @param bool $shared
 | 
						|
     *
 | 
						|
     * @todo also delete the answers to this question
 | 
						|
     *
 | 
						|
     * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
 | 
						|
     *
 | 
						|
     * @version March 2007
 | 
						|
     */
 | 
						|
    public static function delete_survey_question($survey_id, $question_id, $shared = false)
 | 
						|
    {
 | 
						|
        $course_id = api_get_course_int_id();
 | 
						|
        if ($shared) {
 | 
						|
            self::delete_shared_survey_question($survey_id, $question_id);
 | 
						|
        }
 | 
						|
 | 
						|
        // Table definitions
 | 
						|
        $table = Database::get_course_table(TABLE_SURVEY_QUESTION);
 | 
						|
        // Deleting the survey questions
 | 
						|
        $sql = "DELETE FROM $table
 | 
						|
		        WHERE
 | 
						|
		            c_id = $course_id AND
 | 
						|
		            survey_id='".intval($survey_id)."' AND
 | 
						|
		            question_id='".intval($question_id)."'";
 | 
						|
        Database::query($sql);
 | 
						|
 | 
						|
        // Deleting the options of the question of the survey
 | 
						|
        self::delete_survey_question_option($survey_id, $question_id, $shared);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * This function deletes a shared survey question from the main database and all its options.
 | 
						|
     *
 | 
						|
     * @param int $question_id the id of the question
 | 
						|
     *
 | 
						|
     * @todo delete all the options of this question
 | 
						|
     *
 | 
						|
     * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
 | 
						|
     *
 | 
						|
     * @version March 2007
 | 
						|
     */
 | 
						|
    public static function delete_shared_survey_question($survey_id, $question_id)
 | 
						|
    {
 | 
						|
        // Table definitions
 | 
						|
        $table_survey_question = Database::get_main_table(TABLE_MAIN_SHARED_SURVEY_QUESTION);
 | 
						|
        $table_survey_question_option = Database::get_main_table(TABLE_MAIN_SHARED_SURVEY_QUESTION_OPTION);
 | 
						|
 | 
						|
        // First we have to get the shared_question_id
 | 
						|
        $question_data = self::get_question($question_id);
 | 
						|
 | 
						|
        // Deleting the survey questions
 | 
						|
        $sql = "DELETE FROM $table_survey_question
 | 
						|
		        WHERE question_id='".intval($question_data['shared_question_id'])."'";
 | 
						|
        Database::query($sql);
 | 
						|
 | 
						|
        // Deleting the options of the question of the survey question
 | 
						|
        $sql = "DELETE FROM $table_survey_question_option
 | 
						|
		        WHERE question_id='".intval($question_data['shared_question_id'])."'";
 | 
						|
        Database::query($sql);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * This function stores the options of the questions in the table.
 | 
						|
     *
 | 
						|
     * @param array $form_content
 | 
						|
     *
 | 
						|
     * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
 | 
						|
     *
 | 
						|
     * @version January 2007
 | 
						|
     *
 | 
						|
     * @todo writing the update statement when editing a question
 | 
						|
     */
 | 
						|
    public static function save_question_options($form_content, $survey_data)
 | 
						|
    {
 | 
						|
        $course_id = api_get_course_int_id();
 | 
						|
        // A percentage question type has options 1 -> 100
 | 
						|
        if ($form_content['type'] == 'percentage') {
 | 
						|
            for ($i = 1; $i < 101; $i++) {
 | 
						|
                $form_content['answers'][] = $i;
 | 
						|
            }
 | 
						|
        }
 | 
						|
 | 
						|
        if (is_numeric($survey_data['survey_share']) && $survey_data['survey_share'] != 0) {
 | 
						|
            self::save_shared_question_options($form_content, $survey_data);
 | 
						|
        }
 | 
						|
 | 
						|
        // Table definition
 | 
						|
        $table_survey_question_option = Database::get_course_table(TABLE_SURVEY_QUESTION_OPTION);
 | 
						|
 | 
						|
        // We are editing a question so we first have to remove all the existing options from the database
 | 
						|
        if (is_numeric($form_content['question_id'])) {
 | 
						|
            $sql = "DELETE FROM $table_survey_question_option
 | 
						|
			        WHERE c_id = $course_id AND question_id = '".intval($form_content['question_id'])."'";
 | 
						|
            Database::query($sql);
 | 
						|
        }
 | 
						|
 | 
						|
        $counter = 1;
 | 
						|
        if (isset($form_content['answers']) && is_array($form_content['answers'])) {
 | 
						|
            for ($i = 0; $i < count($form_content['answers']); $i++) {
 | 
						|
                $values = isset($form_content['values']) ? $form_content['values'][$i] : '';
 | 
						|
 | 
						|
                $params = [
 | 
						|
                    'c_id' => $course_id,
 | 
						|
                    'question_id' => $form_content['question_id'],
 | 
						|
                    'survey_id' => $form_content['survey_id'],
 | 
						|
                    'option_text' => $form_content['answers'][$i],
 | 
						|
                    'value' => $values,
 | 
						|
                    'sort' => $counter,
 | 
						|
                ];
 | 
						|
                $insertId = Database::insert($table_survey_question_option, $params);
 | 
						|
                if ($insertId) {
 | 
						|
                    $sql = "UPDATE $table_survey_question_option
 | 
						|
                            SET question_option_id = $insertId
 | 
						|
                            WHERE iid = $insertId";
 | 
						|
                    Database::query($sql);
 | 
						|
 | 
						|
                    $counter++;
 | 
						|
                }
 | 
						|
            }
 | 
						|
        }
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * This function stores the options of the questions in the shared table.
 | 
						|
     *
 | 
						|
     * @param array $form_content
 | 
						|
     *
 | 
						|
     * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
 | 
						|
     *
 | 
						|
     * @version February 2007
 | 
						|
     *
 | 
						|
     * @todo writing the update statement when editing a question
 | 
						|
     */
 | 
						|
    public function save_shared_question_options($form_content, $survey_data)
 | 
						|
    {
 | 
						|
        if (is_array($form_content) && is_array($form_content['answers'])) {
 | 
						|
            // Table definition
 | 
						|
            $table = Database::get_main_table(TABLE_MAIN_SHARED_SURVEY_QUESTION_OPTION);
 | 
						|
 | 
						|
            // We are editing a question so we first have to remove all the existing options from the database
 | 
						|
            $sql = "DELETE FROM $table
 | 
						|
                    WHERE question_id = '".Database::escape_string($form_content['shared_question_id'])."'";
 | 
						|
            Database::query($sql);
 | 
						|
 | 
						|
            $counter = 1;
 | 
						|
            foreach ($form_content['answers'] as &$answer) {
 | 
						|
                $params = [
 | 
						|
                    'question_id' => $form_content['shared_question_id'],
 | 
						|
                    'survey_id' => $survey_data['is_shared'],
 | 
						|
                    'option_text' => $answer,
 | 
						|
                    'sort' => $counter,
 | 
						|
                ];
 | 
						|
                Database::insert($table, $params);
 | 
						|
 | 
						|
                $counter++;
 | 
						|
            }
 | 
						|
        }
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * This function deletes all the options of the questions of a given survey
 | 
						|
     * This function is normally only called when a survey is deleted.
 | 
						|
     *
 | 
						|
     * @param $survey_id the id of the survey that has to be deleted
 | 
						|
     *
 | 
						|
     * @return true
 | 
						|
     *
 | 
						|
     * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
 | 
						|
     *
 | 
						|
     * @version January 2007
 | 
						|
     */
 | 
						|
    public static function delete_all_survey_questions_options($survey_id, $shared = false)
 | 
						|
    {
 | 
						|
        // Table definitions
 | 
						|
        $table_survey_question_option = Database::get_course_table(TABLE_SURVEY_QUESTION_OPTION);
 | 
						|
        $course_id = api_get_course_int_id();
 | 
						|
        $course_condition = " c_id = $course_id AND ";
 | 
						|
        if ($shared) {
 | 
						|
            $course_condition = '';
 | 
						|
            $table_survey_question_option = Database::get_main_table(TABLE_MAIN_SHARED_SURVEY_QUESTION_OPTION);
 | 
						|
        }
 | 
						|
 | 
						|
        $sql = "DELETE FROM $table_survey_question_option
 | 
						|
                WHERE $course_condition survey_id='".intval($survey_id)."'";
 | 
						|
 | 
						|
        // Deleting the options of the survey questions
 | 
						|
        Database::query($sql);
 | 
						|
 | 
						|
        return true;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * This function deletes the options of a given question.
 | 
						|
     *
 | 
						|
     * @param int  $survey_id
 | 
						|
     * @param int  $question_id
 | 
						|
     * @param bool $shared
 | 
						|
     *
 | 
						|
     * @return bool
 | 
						|
     *
 | 
						|
     * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
 | 
						|
     * @author Julio Montoya
 | 
						|
     *
 | 
						|
     * @version March 2007
 | 
						|
     */
 | 
						|
    public static function delete_survey_question_option(
 | 
						|
        $survey_id,
 | 
						|
        $question_id,
 | 
						|
        $shared = false
 | 
						|
    ) {
 | 
						|
        $course_id = api_get_course_int_id();
 | 
						|
        $course_condition = " c_id = $course_id AND ";
 | 
						|
 | 
						|
        // Table definitions
 | 
						|
        $table = Database::get_course_table(TABLE_SURVEY_QUESTION_OPTION);
 | 
						|
        if ($shared) {
 | 
						|
            $course_condition = '';
 | 
						|
            $table = Database::get_main_table(TABLE_MAIN_SHARED_SURVEY_QUESTION_OPTION);
 | 
						|
        }
 | 
						|
 | 
						|
        // Deleting the options of the survey questions
 | 
						|
        $sql = "DELETE FROM $table
 | 
						|
		        WHERE
 | 
						|
		            $course_condition survey_id='".intval($survey_id)."' AND
 | 
						|
		            question_id='".intval($question_id)."'";
 | 
						|
        Database::query($sql);
 | 
						|
 | 
						|
        return true;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * SURVEY ANSWERS FUNCTIONS.
 | 
						|
     */
 | 
						|
 | 
						|
    /**
 | 
						|
     * This function deletes all the answers anyone has given on this survey
 | 
						|
     * This function is normally only called when a survey is deleted.
 | 
						|
     *
 | 
						|
     * @param $survey_id the id of the survey that has to be deleted
 | 
						|
     *
 | 
						|
     * @return true
 | 
						|
     *
 | 
						|
     * @todo write the function
 | 
						|
     *
 | 
						|
     * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
 | 
						|
     *
 | 
						|
     * @version January 2007,december 2008
 | 
						|
     */
 | 
						|
    public static function delete_all_survey_answers($survey_id)
 | 
						|
    {
 | 
						|
        $course_id = api_get_course_int_id();
 | 
						|
        $table = Database::get_course_table(TABLE_SURVEY_ANSWER);
 | 
						|
        $survey_id = intval($survey_id);
 | 
						|
        $sql = "DELETE FROM $table 
 | 
						|
                WHERE c_id = $course_id AND survey_id=$survey_id";
 | 
						|
        Database::query($sql);
 | 
						|
 | 
						|
        return true;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * @param int $user_id
 | 
						|
     * @param int $survey_id
 | 
						|
     * @param int $course_id
 | 
						|
     *
 | 
						|
     * @return bool
 | 
						|
     */
 | 
						|
    public static function is_user_filled_survey($user_id, $survey_id, $course_id)
 | 
						|
    {
 | 
						|
        $table = Database::get_course_table(TABLE_SURVEY_ANSWER);
 | 
						|
        $user_id = intval($user_id);
 | 
						|
        $course_id = intval($course_id);
 | 
						|
        $survey_id = intval($survey_id);
 | 
						|
 | 
						|
        $sql = "SELECT DISTINCT user 
 | 
						|
                FROM $table
 | 
						|
                WHERE
 | 
						|
                    c_id		= $course_id AND
 | 
						|
                    user		= $user_id AND
 | 
						|
                    survey_id	= $survey_id";
 | 
						|
        $result = Database::query($sql);
 | 
						|
        if (Database::num_rows($result)) {
 | 
						|
            return true;
 | 
						|
        }
 | 
						|
 | 
						|
        return false;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * This function gets all the persons who have filled the survey.
 | 
						|
     *
 | 
						|
     * @param int $survey_id
 | 
						|
     *
 | 
						|
     * @return array
 | 
						|
     *
 | 
						|
     * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
 | 
						|
     *
 | 
						|
     * @version February 2007
 | 
						|
     */
 | 
						|
    public static function get_people_who_filled_survey(
 | 
						|
        $survey_id,
 | 
						|
        $all_user_info = false,
 | 
						|
        $course_id = null
 | 
						|
    ) {
 | 
						|
        // Database table definition
 | 
						|
        $table_survey_answer = Database::get_course_table(TABLE_SURVEY_ANSWER);
 | 
						|
        $table_user = Database::get_main_table(TABLE_MAIN_USER);
 | 
						|
 | 
						|
        // Variable initialisation
 | 
						|
        $return = [];
 | 
						|
 | 
						|
        if (empty($course_id)) {
 | 
						|
            $course_id = api_get_course_int_id();
 | 
						|
        } else {
 | 
						|
            $course_id = intval($course_id);
 | 
						|
        }
 | 
						|
 | 
						|
        if ($all_user_info) {
 | 
						|
            $order_clause = api_sort_by_first_name()
 | 
						|
                ? ' ORDER BY user.firstname, user.lastname'
 | 
						|
                : ' ORDER BY user.lastname, user.firstname';
 | 
						|
            $sql = "SELECT DISTINCT
 | 
						|
			            answered_user.user as invited_user, 
 | 
						|
			            user.firstname, 
 | 
						|
			            user.lastname, 
 | 
						|
			            user.user_id
 | 
						|
                    FROM $table_survey_answer answered_user
 | 
						|
                    LEFT JOIN $table_user as user ON answered_user.user = user.user_id
 | 
						|
                    WHERE
 | 
						|
                        answered_user.c_id = $course_id AND
 | 
						|
                        survey_id= '".Database::escape_string($survey_id)."' ".
 | 
						|
                $order_clause;
 | 
						|
        } else {
 | 
						|
            $sql = "SELECT DISTINCT user FROM $table_survey_answer
 | 
						|
			        WHERE c_id = $course_id AND survey_id= '".Database::escape_string($survey_id)."'  ";
 | 
						|
        }
 | 
						|
 | 
						|
        $res = Database::query($sql);
 | 
						|
        while ($row = Database::fetch_array($res, 'ASSOC')) {
 | 
						|
            if ($all_user_info) {
 | 
						|
                $userInfo = api_get_user_info($row['user_id']);
 | 
						|
                $row['user_info'] = $userInfo;
 | 
						|
                $return[] = $row;
 | 
						|
            } else {
 | 
						|
                $return[] = $row['user'];
 | 
						|
            }
 | 
						|
        }
 | 
						|
 | 
						|
        return $return;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * @return bool
 | 
						|
     */
 | 
						|
    public static function survey_generation_hash_available()
 | 
						|
    {
 | 
						|
        if (extension_loaded('mcrypt')) {
 | 
						|
            return true;
 | 
						|
        }
 | 
						|
 | 
						|
        return false;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * @param int $survey_id
 | 
						|
     * @param int $course_id
 | 
						|
     * @param int $session_id
 | 
						|
     * @param int $group_id
 | 
						|
     *
 | 
						|
     * @return string
 | 
						|
     */
 | 
						|
    public static function generate_survey_hash($survey_id, $course_id, $session_id, $group_id)
 | 
						|
    {
 | 
						|
        $hash = hash('sha512', api_get_security_key().'_'.$course_id.'_'.$session_id.'_'.$group_id.'_'.$survey_id);
 | 
						|
 | 
						|
        return $hash;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * @param int    $survey_id
 | 
						|
     * @param int    $course_id
 | 
						|
     * @param int    $session_id
 | 
						|
     * @param int    $group_id
 | 
						|
     * @param string $hash
 | 
						|
     *
 | 
						|
     * @return bool
 | 
						|
     */
 | 
						|
    public static function validate_survey_hash($survey_id, $course_id, $session_id, $group_id, $hash)
 | 
						|
    {
 | 
						|
        $survey_generated_hash = self::generate_survey_hash($survey_id, $course_id, $session_id, $group_id);
 | 
						|
        if ($survey_generated_hash == $hash) {
 | 
						|
            return true;
 | 
						|
        }
 | 
						|
 | 
						|
        return false;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * @param int $survey_id
 | 
						|
     * @param int $course_id
 | 
						|
     * @param int $session_id
 | 
						|
     * @param int $group_id
 | 
						|
     *
 | 
						|
     * @return string
 | 
						|
     */
 | 
						|
    public static function generate_survey_link(
 | 
						|
        $survey_id,
 | 
						|
        $course_id,
 | 
						|
        $session_id,
 | 
						|
        $group_id
 | 
						|
    ) {
 | 
						|
        $code = self::generate_survey_hash(
 | 
						|
            $survey_id,
 | 
						|
            $course_id,
 | 
						|
            $session_id,
 | 
						|
            $group_id
 | 
						|
        );
 | 
						|
 | 
						|
        return api_get_path(WEB_CODE_PATH).'survey/link.php?h='.$code.'&i='.$survey_id.'&c='.intval($course_id).'&s='
 | 
						|
            .intval($session_id).'&g='.$group_id;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Check if the current user has mandatory surveys no-answered
 | 
						|
     * and redirect to fill the first found survey.
 | 
						|
     */
 | 
						|
    public static function protectByMandatory()
 | 
						|
    {
 | 
						|
        if (strpos($_SERVER['SCRIPT_NAME'], 'fillsurvey.php') !== false) {
 | 
						|
            return;
 | 
						|
        }
 | 
						|
 | 
						|
        $userId = api_get_user_id();
 | 
						|
        $courseId = api_get_course_int_id();
 | 
						|
        $sessionId = api_get_session_id();
 | 
						|
 | 
						|
        if (!$userId) {
 | 
						|
            return;
 | 
						|
        }
 | 
						|
 | 
						|
        if (!$courseId) {
 | 
						|
            return;
 | 
						|
        }
 | 
						|
 | 
						|
        try {
 | 
						|
            /** @var CSurveyInvitation $invitation */
 | 
						|
            $invitation = Database::getManager()
 | 
						|
                ->createQuery("
 | 
						|
                    SELECT i FROM ChamiloCourseBundle:CSurveyInvitation i
 | 
						|
                    INNER JOIN ChamiloCourseBundle:CSurvey s
 | 
						|
                        WITH (s.code = i.surveyCode AND s.cId = i.cId AND s.sessionId = i.sessionId)
 | 
						|
                    INNER JOIN ChamiloCoreBundle:ExtraFieldValues efv WITH efv.itemId = s.iid
 | 
						|
                    INNER JOIN ChamiloCoreBundle:ExtraField ef WITH efv.field = ef.id
 | 
						|
                    WHERE 
 | 
						|
                        i.answered = 0 AND 
 | 
						|
                        i.cId = :course AND 
 | 
						|
                        i.user = :user AND 
 | 
						|
                        i.sessionId = :session AND 
 | 
						|
                        :now BETWEEN s.availFrom AND s.availTill AND 
 | 
						|
                        ef.variable = :variable AND 
 | 
						|
                        efv.value = 1 AND 
 | 
						|
                        s.surveyType != 3
 | 
						|
                    ORDER BY s.availTill ASC
 | 
						|
                ")
 | 
						|
                ->setMaxResults(1)
 | 
						|
                ->setParameters([
 | 
						|
                    'course' => $courseId,
 | 
						|
                    'user' => $userId,
 | 
						|
                    'session' => $sessionId,
 | 
						|
                    'now' => new DateTime('UTC', new DateTimeZone('UTC')),
 | 
						|
                    'variable' => 'is_mandatory',
 | 
						|
                ])
 | 
						|
                ->getSingleResult();
 | 
						|
        } catch (Exception $e) {
 | 
						|
            $invitation = null;
 | 
						|
        }
 | 
						|
 | 
						|
        if (!$invitation) {
 | 
						|
            return;
 | 
						|
        }
 | 
						|
 | 
						|
        $urlParams = http_build_query([
 | 
						|
            'course' => api_get_course_id(),
 | 
						|
            'invitationcode' => $invitation->getInvitationCode(),
 | 
						|
        ]);
 | 
						|
 | 
						|
        Display::addFlash(
 | 
						|
            Display::return_message(get_lang('MandatorySurveyNoAnswered'), 'warning')
 | 
						|
        );
 | 
						|
 | 
						|
        header('Location: '.api_get_path(WEB_CODE_PATH).'survey/fillsurvey.php?'.$urlParams.'&'.api_get_cidreq());
 | 
						|
        exit;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * This function empty surveys (invitations and answers).
 | 
						|
     *
 | 
						|
     * @param int $surveyId id of the survey to empty
 | 
						|
     *
 | 
						|
     * @return bool
 | 
						|
     */
 | 
						|
    public static function emptySurveyFromId($surveyId)
 | 
						|
    {
 | 
						|
        // Database table definitions
 | 
						|
        $surveyInvitationTable = Database:: get_course_table(TABLE_SURVEY_INVITATION);
 | 
						|
        $surveyAnswerTable = Database:: get_course_table(TABLE_SURVEY_ANSWER);
 | 
						|
        $surveyTable = Database:: get_course_table(TABLE_SURVEY);
 | 
						|
        $surveyId = (int) $surveyId;
 | 
						|
        $surveyData = self::get_survey($surveyId);
 | 
						|
        if (empty($surveyData)) {
 | 
						|
            return false;
 | 
						|
        }
 | 
						|
 | 
						|
        $surveyCode = $surveyData['survey_code'];
 | 
						|
        $courseId = (int) $surveyData['c_id'];
 | 
						|
        $sessionId = (int) $surveyData['session_id'];
 | 
						|
 | 
						|
        $sql = "DELETE FROM $surveyInvitationTable 
 | 
						|
                WHERE session_id = $sessionId AND c_id = $courseId AND survey_code = '$surveyCode' ";
 | 
						|
        Database::query($sql);
 | 
						|
 | 
						|
        $sql = "DELETE FROM $surveyAnswerTable 
 | 
						|
               WHERE survey_id = $surveyId AND c_id = $courseId ";
 | 
						|
        Database::query($sql);
 | 
						|
 | 
						|
        $sql = "UPDATE $surveyTable 
 | 
						|
                SET invited = 0, answered = 0 
 | 
						|
                WHERE survey_id = $surveyId AND c_id = $courseId AND session_id = $sessionId ";
 | 
						|
        Database::query($sql);
 | 
						|
 | 
						|
        return true;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * This function copy survey specifying course id and session id where will be copied.
 | 
						|
     *
 | 
						|
     * @param int $surveyId
 | 
						|
     * @param int $targetCourseId  target course id
 | 
						|
     * @param int $targetSessionId target session id
 | 
						|
     *
 | 
						|
     * @return bool|int when fails or return the new survey id
 | 
						|
     */
 | 
						|
    public static function copySurveySession($surveyId, $targetCourseId, $targetSessionId)
 | 
						|
    {
 | 
						|
        // Database table definitions
 | 
						|
        $surveyTable = Database::get_course_table(TABLE_SURVEY);
 | 
						|
        $surveyQuestionGroupTable = Database::get_course_table(TABLE_SURVEY_QUESTION_GROUP);
 | 
						|
        $surveyQuestionTable = Database::get_course_table(TABLE_SURVEY_QUESTION);
 | 
						|
        $surveyOptionsTable = Database::get_course_table(TABLE_SURVEY_QUESTION_OPTION);
 | 
						|
        $surveyId = (int) $surveyId;
 | 
						|
        $targetCourseId = (int) $targetCourseId;
 | 
						|
        $targetSessionId = (int) $targetSessionId;
 | 
						|
 | 
						|
        $surveyData = self::get_survey($surveyId, 0, '', true);
 | 
						|
        if (empty($surveyData) || empty($targetCourseId)) {
 | 
						|
            return false;
 | 
						|
        }
 | 
						|
 | 
						|
        $originalCourseId = $surveyData['c_id'];
 | 
						|
        $originalSessionId = $surveyData['session_id'];
 | 
						|
 | 
						|
        $surveyData['code'] = self::generate_unique_code($surveyData['code']);
 | 
						|
        $surveyData['c_id'] = $targetCourseId;
 | 
						|
        $surveyData['session_id'] = $targetSessionId;
 | 
						|
        // Add a "Copy" suffix if copied inside the same course
 | 
						|
        if ($targetCourseId == $originalCourseId) {
 | 
						|
            $surveyData['title'] = $surveyData['title'].' '.get_lang('Copy');
 | 
						|
        }
 | 
						|
        unset($surveyData['iid']);
 | 
						|
        unset($surveyData['id']);
 | 
						|
 | 
						|
        $newSurveyId = Database::insert($surveyTable, $surveyData);
 | 
						|
 | 
						|
        if ($newSurveyId) {
 | 
						|
            $sql = "UPDATE $surveyTable SET survey_id = $newSurveyId 
 | 
						|
                    WHERE iid = $newSurveyId";
 | 
						|
            Database::query($sql);
 | 
						|
 | 
						|
            $sql = "SELECT * FROM $surveyQuestionGroupTable 
 | 
						|
                    WHERE survey_id = $surveyId AND c_id = $originalCourseId ";
 | 
						|
            $res = Database::query($sql);
 | 
						|
            while ($row = Database::fetch_array($res, 'ASSOC')) {
 | 
						|
                $params = [
 | 
						|
                    'c_id' => $targetCourseId,
 | 
						|
                    'name' => $row['name'],
 | 
						|
                    'description' => $row['description'],
 | 
						|
                    'survey_id' => $newSurveyId,
 | 
						|
                ];
 | 
						|
                $insertId = Database::insert($surveyQuestionGroupTable, $params);
 | 
						|
                if ($insertId) {
 | 
						|
                    $sql = "UPDATE $surveyQuestionGroupTable SET id = iid WHERE iid = $insertId";
 | 
						|
                    Database::query($sql);
 | 
						|
                    $group_id[$row['id']] = $insertId;
 | 
						|
                }
 | 
						|
            }
 | 
						|
 | 
						|
            // Get questions
 | 
						|
            $sql = "SELECT * FROM $surveyQuestionTable 
 | 
						|
                    WHERE survey_id = $surveyId AND c_id = $originalCourseId";
 | 
						|
            $res = Database::query($sql);
 | 
						|
            while ($row = Database::fetch_array($res, 'ASSOC')) {
 | 
						|
                $params = [
 | 
						|
                    'c_id' => $targetCourseId,
 | 
						|
                    'survey_id' => $newSurveyId,
 | 
						|
                    'survey_question' => $row['survey_question'],
 | 
						|
                    'survey_question_comment' => $row['survey_question_comment'],
 | 
						|
                    'type' => $row['type'],
 | 
						|
                    'display' => $row['display'],
 | 
						|
                    'sort' => $row['sort'],
 | 
						|
                    'shared_question_id' => $row['shared_question_id'],
 | 
						|
                    'max_value' => $row['max_value'],
 | 
						|
                    'survey_group_pri' => $row['survey_group_pri'],
 | 
						|
                    'survey_group_sec1' => $row['survey_group_sec1'],
 | 
						|
                    'survey_group_sec2' => $row['survey_group_sec2'],
 | 
						|
                ];
 | 
						|
                $insertId = Database::insert($surveyQuestionTable, $params);
 | 
						|
                if ($insertId) {
 | 
						|
                    $sql = "UPDATE $surveyQuestionTable 
 | 
						|
                            SET question_id = iid
 | 
						|
                            WHERE iid = $insertId";
 | 
						|
                    Database::query($sql);
 | 
						|
 | 
						|
                    $question_id[$row['question_id']] = $insertId;
 | 
						|
                }
 | 
						|
            }
 | 
						|
 | 
						|
            // Get questions options
 | 
						|
            $sql = "SELECT * FROM $surveyOptionsTable 
 | 
						|
                    WHERE survey_id = $surveyId AND c_id = $originalCourseId";
 | 
						|
 | 
						|
            $res = Database::query($sql);
 | 
						|
            while ($row = Database::fetch_array($res, 'ASSOC')) {
 | 
						|
                $params = [
 | 
						|
                    'c_id' => $targetCourseId,
 | 
						|
                    'question_id' => $question_id[$row['question_id']],
 | 
						|
                    'survey_id' => $newSurveyId,
 | 
						|
                    'option_text' => $row['option_text'],
 | 
						|
                    'sort' => $row['sort'],
 | 
						|
                    'value' => $row['value'],
 | 
						|
                ];
 | 
						|
                $insertId = Database::insert($surveyOptionsTable, $params);
 | 
						|
                if ($insertId) {
 | 
						|
                    $sql = "UPDATE $surveyOptionsTable SET question_option_id = $insertId WHERE iid = $insertId";
 | 
						|
                    Database::query($sql);
 | 
						|
                }
 | 
						|
            }
 | 
						|
 | 
						|
            return $newSurveyId;
 | 
						|
        }
 | 
						|
 | 
						|
        return false;
 | 
						|
    }
 | 
						|
 | 
						|
    public static function removeMultiplicateQuestions($surveyData)
 | 
						|
    {
 | 
						|
        if (empty($surveyData)) {
 | 
						|
            return false;
 | 
						|
        }
 | 
						|
        $surveyId = $surveyData['survey_id'];
 | 
						|
        $courseId = $surveyData['c_id'];
 | 
						|
 | 
						|
        if (empty($surveyId) || empty($courseId)) {
 | 
						|
            return false;
 | 
						|
        }
 | 
						|
 | 
						|
        $questions = self::get_questions($surveyId);
 | 
						|
        foreach ($questions as $question) {
 | 
						|
            // Questions marked with "geneated" were created using the "multiplicate" feature.
 | 
						|
            if ($question['survey_question_comment'] === 'generated') {
 | 
						|
                self::delete_survey_question($surveyId, $question['question_id']);
 | 
						|
            }
 | 
						|
        }
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * @param array $surveyData
 | 
						|
     *
 | 
						|
     * @return bool
 | 
						|
     */
 | 
						|
    public static function multiplicateQuestions($surveyData)
 | 
						|
    {
 | 
						|
        if (empty($surveyData)) {
 | 
						|
            return false;
 | 
						|
        }
 | 
						|
        $surveyId = $surveyData['survey_id'];
 | 
						|
        $courseId = $surveyData['c_id'];
 | 
						|
 | 
						|
        if (empty($surveyId) || empty($courseId)) {
 | 
						|
            return false;
 | 
						|
        }
 | 
						|
 | 
						|
        $questions = self::get_questions($surveyId);
 | 
						|
 | 
						|
        $obj = new UserGroup();
 | 
						|
 | 
						|
        $options['where'] = [' usergroup.course_id = ? ' => $courseId];
 | 
						|
        $classList = $obj->getUserGroupInCourse($options);
 | 
						|
 | 
						|
        $classTag = '{{class_name}}';
 | 
						|
        $studentTag = '{{student_full_name}}';
 | 
						|
        $classCounter = 0;
 | 
						|
        foreach ($classList as $class) {
 | 
						|
            $className = $class['name'];
 | 
						|
            foreach ($questions as $question) {
 | 
						|
                $users = $obj->get_users_by_usergroup($class['id']);
 | 
						|
                if (empty($users)) {
 | 
						|
                    continue;
 | 
						|
                }
 | 
						|
 | 
						|
                $text = $question['question'];
 | 
						|
                if (strpos($text, $classTag) !== false) {
 | 
						|
                    $replacedText = str_replace($classTag, $className, $text);
 | 
						|
                    $values = [
 | 
						|
                        'c_id' => $courseId,
 | 
						|
                        'question_comment' => 'generated',
 | 
						|
                        'type' => $question['type'],
 | 
						|
                        'display' => $question['horizontalvertical'],
 | 
						|
                        'question' => $replacedText,
 | 
						|
                        'survey_id' => $surveyId,
 | 
						|
                        'question_id' => 0,
 | 
						|
                        'shared_question_id' => 0,
 | 
						|
                    ];
 | 
						|
                    self::save_question($surveyData, $values);
 | 
						|
                    $classCounter++;
 | 
						|
                    continue;
 | 
						|
                }
 | 
						|
 | 
						|
                foreach ($users as $userId) {
 | 
						|
                    $userInfo = api_get_user_info($userId);
 | 
						|
 | 
						|
                    if (strpos($text, $studentTag) !== false) {
 | 
						|
                        $replacedText = str_replace($studentTag, $userInfo['complete_name'], $text);
 | 
						|
                        $values = [
 | 
						|
                            'c_id' => $courseId,
 | 
						|
                            'question_comment' => 'generated',
 | 
						|
                            'type' => $question['type'],
 | 
						|
                            'display' => $question['horizontalvertical'],
 | 
						|
                            'maximum_score' => $question['maximum_score'],
 | 
						|
                            'question' => $replacedText,
 | 
						|
                            'survey_id' => $surveyId,
 | 
						|
                            'question_id' => 0,
 | 
						|
                            'shared_question_id' => 0,
 | 
						|
                        ];
 | 
						|
 | 
						|
                        $answers = [];
 | 
						|
                        if (!empty($question['answers'])) {
 | 
						|
                            foreach ($question['answers'] as $answer) {
 | 
						|
                                $replacedText = str_replace($studentTag, $userInfo['complete_name'], $answer);
 | 
						|
                                $answers[] = $replacedText;
 | 
						|
                            }
 | 
						|
                        }
 | 
						|
                        $values['answers'] = $answers;
 | 
						|
                        self::save_question($surveyData, $values);
 | 
						|
                    }
 | 
						|
                }
 | 
						|
 | 
						|
                if ($classCounter < count($classList)) {
 | 
						|
                    // Add end page
 | 
						|
                    $values = [
 | 
						|
                        'c_id' => $courseId,
 | 
						|
                        'question_comment' => 'generated',
 | 
						|
                        'type' => 'pagebreak',
 | 
						|
                        'display' => 'horizontal',
 | 
						|
                        'question' => get_lang('QuestionForNextClass'),
 | 
						|
                        'survey_id' => $surveyId,
 | 
						|
                        'question_id' => 0,
 | 
						|
                        'shared_question_id' => 0,
 | 
						|
                    ];
 | 
						|
                    self::save_question($surveyData, $values);
 | 
						|
                }
 | 
						|
            }
 | 
						|
        }
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * @param array $survey
 | 
						|
     *
 | 
						|
     * @return int
 | 
						|
     */
 | 
						|
    public static function getCountPages($survey)
 | 
						|
    {
 | 
						|
        if (empty($survey) || !isset($survey['iid'])) {
 | 
						|
            return 0;
 | 
						|
        }
 | 
						|
 | 
						|
        $courseId = $survey['c_id'];
 | 
						|
        $surveyId = $survey['survey_id'];
 | 
						|
 | 
						|
        $table = Database::get_course_table(TABLE_SURVEY_QUESTION);
 | 
						|
 | 
						|
        // One question per page
 | 
						|
        $sql = "SELECT * FROM $table
 | 
						|
                WHERE
 | 
						|
                    survey_question NOT LIKE '%{{%' AND
 | 
						|
                    type = 'pagebreak' AND
 | 
						|
                    c_id = $courseId AND
 | 
						|
                    survey_id = '".$surveyId."'";
 | 
						|
        $result = Database::query($sql);
 | 
						|
        $numberPageBreaks = Database::num_rows($result);
 | 
						|
 | 
						|
        // One question per page
 | 
						|
        $sql = "SELECT * FROM $table
 | 
						|
                    WHERE
 | 
						|
                        survey_question NOT LIKE '%{{%' AND
 | 
						|
                        type != 'pagebreak' AND
 | 
						|
                        c_id = $courseId AND
 | 
						|
                        survey_id = '".$surveyId."'";
 | 
						|
        $result = Database::query($sql);
 | 
						|
        $countOfQuestions = Database::num_rows($result);
 | 
						|
 | 
						|
        $count = 1;
 | 
						|
        if (!empty($numberPageBreaks) && !empty($countOfQuestions)) {
 | 
						|
            // One question per page
 | 
						|
            $count = $countOfQuestions;
 | 
						|
        }
 | 
						|
 | 
						|
        if ($survey['one_question_per_page'] == 1) {
 | 
						|
            $count = 1;
 | 
						|
            if (!empty($countOfQuestions)) {
 | 
						|
                $count = $countOfQuestions;
 | 
						|
            }
 | 
						|
        }
 | 
						|
 | 
						|
        return $count;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Check whether this survey has ended. If so, display message and exit rhis script.
 | 
						|
     *
 | 
						|
     * @param array $surveyData Survey data
 | 
						|
     */
 | 
						|
    public static function checkTimeAvailability($surveyData)
 | 
						|
    {
 | 
						|
        if (empty($surveyData)) {
 | 
						|
            api_not_allowed(true);
 | 
						|
        }
 | 
						|
        $allowSurveyAvailabilityDatetime = api_get_configuration_value('allow_survey_availability_datetime');
 | 
						|
        $utcZone = new DateTimeZone('UTC');
 | 
						|
        $startDate = new DateTime($surveyData['start_date'], $utcZone);
 | 
						|
        $endDate = new DateTime($surveyData['end_date'], $utcZone);
 | 
						|
        $currentDate = new DateTime('now', $utcZone);
 | 
						|
        if (!$allowSurveyAvailabilityDatetime) {
 | 
						|
            $currentDate->modify('today');
 | 
						|
        }
 | 
						|
        if ($currentDate < $startDate) {
 | 
						|
            api_not_allowed(
 | 
						|
                true,
 | 
						|
                Display:: return_message(
 | 
						|
                    get_lang('SurveyNotAvailableYet'),
 | 
						|
                    'warning',
 | 
						|
                    false
 | 
						|
                )
 | 
						|
            );
 | 
						|
        }
 | 
						|
 | 
						|
        if ($currentDate > $endDate) {
 | 
						|
            api_not_allowed(
 | 
						|
                true,
 | 
						|
                Display:: return_message(
 | 
						|
                    get_lang('SurveyNotAvailableAnymore'),
 | 
						|
                    'warning',
 | 
						|
                    false
 | 
						|
                )
 | 
						|
            );
 | 
						|
        }
 | 
						|
    }
 | 
						|
}
 | 
						|
 |