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							279 lines
						
					
					
						
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							279 lines
						
					
					
						
							13 KiB
						
					
					
				<?php
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/* For licensing terms, see /license.txt */
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/**
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 * A page for detailed preview or edition of a given course request.
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 * @package chamilo.admin
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 * @author Ivan Tcholakov <ivantcholakov@gmail.com>, 2010
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 */
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$cidReset = true;
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require_once '../inc/global.inc.php';
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$this_section = SECTION_PLATFORM_ADMIN;
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$tool_name = get_lang('CourseRequestEdit');
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api_protect_admin_script();
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// A check whether the course validation feature is enabled.
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$course_validation_feature = api_get_setting('course_validation') == 'true';
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// Filltering passed to this page parameters.
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$id = intval($_GET['id']);
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$caller = intval($_GET['caller']);
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if ($course_validation_feature) {
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    // Retrieve request's data from the corresponding database record.
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    $course_request_info = CourseRequestManager::get_course_request_info($id);
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    if (!is_array($course_request_info)) {
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        // Prepare an error message notifying that the course request has not been found or does not exist.
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        $message = get_lang('CourseRequestHasNotBeenFound');
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        $is_error_message = true;
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    } else {
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        // Ensure the database prefix + database name do not get over 40 characters.
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        $maxlength = 40;
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        // Build the form.
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        $form = new FormValidator('add_course', 'post', 'course_request_edit.php?id='.$id.'&caller='.$caller);
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        // Form title.
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        $form->addElement('header', $tool_name);
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        // Title.
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        $form->addElement('text', 'title', get_lang('CourseName'), array('size' => '60', 'id' => 'title'));
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        $form->applyFilter('title', 'html_filter');
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        $form->addRule('title', get_lang('ThisFieldIsRequired'), 'required');
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        // Course category.
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        $url = api_get_path(WEB_AJAX_PATH).'course.ajax.php?a=search_category';
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        $courseSelect = $form->addElement(
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            'select_ajax',
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            'category_code',
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            get_lang('CourseFaculty'),
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            null,
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            array('url' => $url)
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        );
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        if (!empty($course_request_info['category_code'])) {
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            $data = getCategory($course_request_info['category_code']);
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            $courseSelect->addOption($data['name'], $data['code'], ['selected' => 'selected']);
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        }
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        // Course code.
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        $form->addText('wanted_code', get_lang('Code'), false, array('size' => '$maxlength', 'maxlength' => $maxlength));
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        $form->applyFilter('wanted_code', 'html_filter');
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        $form->addRule('wanted_code', get_lang('Max'), 'maxlength', $maxlength);
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        $form->addRule('wanted_code', get_lang('ThisFieldIsRequired'), 'required');
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        // The teacher.
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        $titular = $form->addText('tutor_name', get_lang('Professor'), null, array('size' => '60', 'disabled' => 'disabled'));
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        // Description of the requested course.
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        $form->addElement('textarea', 'description', get_lang('Description'), array('style' => 'border:#A5ACB2 solid 1px; font-family:arial,verdana,helvetica,sans-serif; font-size:12px', 'rows' => '3', 'cols' => '116'));
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        $form->addRule('description', get_lang('ThisFieldIsRequired'), 'required');
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        // Objectives of the requested course.
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        $form->addElement('textarea', 'objetives', get_lang('Objectives'), array('style' => 'border:#A5ACB2 solid 1px; font-family:arial,verdana,helvetica,sans-serif; font-size:12px', 'rows' => '3', 'cols' => '116'));
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        $form->addRule('objetives', get_lang('ThisFieldIsRequired'), 'required');
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        // Target audience of the requested course.
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        $form->addElement('textarea', 'target_audience', get_lang('TargetAudience'), array('style' => 'border:#A5ACB2 solid 1px; font-family:arial,verdana,helvetica,sans-serif; font-size:12px', 'rows' => '3', 'cols' => '116'));
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        $form->addRule('target_audience', get_lang('ThisFieldIsRequired'), 'required');
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        // Course language.
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        $form->addElement('select_language', 'course_language', get_lang('Ln'));
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        $form->applyFilter('select_language', 'html_filter');
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        // Exemplary content checkbox.
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        $form->addElement('checkbox', 'exemplary_content', get_lang('FillWithExemplaryContent'));
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        // Submit buttons.
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        $submit_buttons[] = $form->addButtonSave(get_lang('Save'), 'save_button', true);
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        if ($course_request_info['status'] != COURSE_REQUEST_ACCEPTED) {
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            $submit_buttons[] = $form->addButtonSave(get_lang('Accept'), 'accept_button', true);
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        }
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        if ($course_request_info['status'] != COURSE_REQUEST_ACCEPTED && $course_request_info['status'] != COURSE_REQUEST_REJECTED) {
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            $submit_buttons[] = $form->addButtonCancel(get_lang('Reject'), 'reject_button', true);
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        }
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        if ($course_request_info['status'] != COURSE_REQUEST_ACCEPTED && intval($course_request_info['info']) <= 0) {
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            $submit_buttons[] = $form->addButtonPreview(get_lang('AskAdditionalInfo'), 'ask_info_button', true);
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        }
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        $form->addGroup($submit_buttons);
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        // Hidden form fields.
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        $form->addElement('hidden', 'user_id');
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        $form->addElement('hidden', 'directory');
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        $form->addElement('hidden', 'visual_code');
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        $form->addElement('hidden', 'request_date');
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        $form->addElement('hidden', 'status');
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        $form->addElement('hidden', 'info');
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        // Set the default values based on the corresponding database record.
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        $values['wanted_code'] = $course_request_info['code'];
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        $values['user_id'] = $course_request_info['user_id'];
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        $values['directory'] = $course_request_info['directory'];
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        $values['course_language'] = $course_request_info['course_language'];
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        $values['title'] = $course_request_info['title'];
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        $values['description'] = $course_request_info['description'];
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        //$values['category_code'] = $course_request_info['category_code'];
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        $values['tutor_name'] = $course_request_info['tutor_name'];
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        $values['visual_code'] = $course_request_info['visual_code'];
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        $values['request_date'] = $course_request_info['request_date'];
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        $values['objetives'] = $course_request_info['objetives'];
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        $values['target_audience'] = $course_request_info['target_audience'];
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        $values['status'] = $course_request_info['status'];
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        $values['info'] = $course_request_info['info'];
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        $values['exemplary_content'] = $course_request_info['exemplary_content'];
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        $form->setDefaults($values);
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        // Validate the form and perform the ordered actions.
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        if ($form->validate()) {
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            $course_request_values = $form->getSubmitValues();
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            // Detection which submit button has been pressed.
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            $submit_button = isset($_POST['save_button']) ? 'save_button'
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                : (isset($_POST['accept_button']) ? 'accept_button'
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                    : (isset($_POST['reject_button']) ? 'reject_button'
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                        : (isset($_POST['ask_info_button']) ? 'ask_info_button'
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                            : 'submit_button')));
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            // Check the course code for avoiding duplication.
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            $course_code_ok = $course_request_values['wanted_code'] == $course_request_info['code']
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                ? true
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                : !CourseRequestManager::course_code_exists($course_request_values['wanted_code']);
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            if ($course_code_ok) {
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                $message = array();
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                $is_error_message = false;
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                // Update the course request.
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                $update_ok = CourseRequestManager::update_course_request(
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                    $id,
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                    $course_request_values['wanted_code'],
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                    $course_request_values['title'],
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                    $course_request_values['description'],
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                    $course_request_values['category_code'],
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                    $course_request_values['course_language'],
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                    $course_request_values['objetives'],
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                    $course_request_values['target_audience'],
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                    $course_request_values['user_id'],
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                    $course_request_values['exemplary_content']
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                );
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                if ($update_ok) {
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                    $message[] = sprintf(get_lang('CourseRequestUpdated'), $course_request_values['wanted_code']);
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                    switch ($submit_button) {
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                        case 'accept_button':
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                            if (CourseRequestManager::accept_course_request($id)) {
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                                $message[] = sprintf(get_lang('CourseRequestAccepted'), $course_request_values['wanted_code'], $course_request_values['wanted_code']);
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                            } else {
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                                $message[] = sprintf(get_lang('CourseRequestAcceptanceFailed'), $course_request_values['wanted_code']);
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                                $is_error_message = true;
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                            }
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                            break;
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                        case 'reject_button':
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                            if (CourseRequestManager::reject_course_request($id)) {
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                                $message[] = sprintf(get_lang('CourseRequestRejected'), $course_request_values['wanted_code']);
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                            } else {
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                                $message[] = sprintf(get_lang('CourseRequestRejectionFailed'), $course_request_values['wanted_code']);
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                                $is_error_message = true;
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                            }
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                            break;
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                        case 'ask_info_button':
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                            if (CourseRequestManager::ask_for_additional_info($id)) {
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                                $message[] = sprintf(get_lang('CourseRequestInfoAsked'), $course_request_values['wanted_code']);
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                            } else {
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                                $message[] = sprintf(get_lang('CourseRequestInfoFailed'), $course_request_values['wanted_code']);
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                                $is_error_message = true;
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                            }
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                            break;
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                    }
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                    // Line of code for testing purposes, to be removed
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                    //$message = 'The button "'.$submit_button.'" has been pressed.';
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                } else {
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                    $message[] = sprintf(get_lang('CourseRequestUpdateFailed'), $course_request_values['wanted_code']);
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                    $is_error_message = true;
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                }
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                $message = implode(' ', $message);
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                $back_url = get_caller_name($caller);
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                if ($message != '') {
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                    $back_url = api_add_url_param($back_url, 'message='.urlencode(Security::remove_XSS($message)), false);
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                }
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                if ($is_error_message) {
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                    $back_url = api_add_url_param($back_url, 'is_error_message=1', false);
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                }
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                header('location:'.$back_url);
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                exit;
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            } else {
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                $message = $course_request_values['wanted_code'].' - '.get_lang('CourseCodeAlreadyExists');
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                $is_error_message = true;
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            }
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        }
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    }
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} else {
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    // Prepare an error message notifying that the course validation feature has not been enabled.
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    $link_to_setting = api_get_path(WEB_CODE_PATH).'admin/settings.php?search_field=course_validation&submit_button=&category=search_setting';
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    $message = sprintf(get_lang('PleaseActivateCourseValidationFeature'), sprintf('<strong><a href="%s">%s</a></strong>', $link_to_setting, get_lang('EnableCourseValidation')));
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    $is_error_message = true;
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}
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// Functions.
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// Converts the given numerical id to the name of the page that opened this editor.
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function get_caller_name($caller_id) {
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    switch ($caller_id) {
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        case 1:
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            return 'course_request_accepted.php';
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        case 2:
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            return 'course_request_rejected.php';
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    }
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    return 'course_request_review.php';
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}
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// The header.
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$interbreadcrumb[] = array('url' => 'index.php', 'name' => get_lang('PlatformAdmin'));
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$interbreadcrumb[] = array('url' => 'course_list.php', 'name' => get_lang('CourseList'));
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Display :: display_header($tool_name);
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// Display confirmation or error message.
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if (!empty($message)) {
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    if ($is_error_message) {
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        Display::display_error_message($message, false);
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    } else {
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        Display::display_normal_message($message, false);
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    }
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}
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if (!$course_validation_feature) {
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    // Disabled course validation feature - show nothing after the error message.
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    Display :: display_footer();
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    exit;
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}
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// The action bar.
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echo '<div class="actions">';
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echo '<a href="course_list.php">'.Display::return_icon('courses.gif', get_lang('CourseList')).get_lang('CourseList').'</a>';
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echo '<a href="course_request_review.php">'.Display::return_icon('course_request_pending.png', get_lang('ReviewCourseRequests')).get_lang('ReviewCourseRequests').'</a>';
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echo '<a href="course_request_accepted.php">'.Display::return_icon('course_request_accepted.gif', get_lang('AcceptedCourseRequests')).get_lang('AcceptedCourseRequests').'</a>';
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echo '<a href="course_request_rejected.php">'.Display::return_icon('course_request_rejected.gif', get_lang('RejectedCourseRequests')).get_lang('RejectedCourseRequests').'</a>';
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echo '</div>';
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if (!is_array($course_request_info)) {
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    // Not accessible database record - show the error message and the action bar.
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    Display :: display_footer();
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    exit;
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}
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// Display the form.
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$form->display();
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// The footer.
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Display :: display_footer();
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