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706 lines
24 KiB
706 lines
24 KiB
<?php
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/* For licensing terms, see /license.txt */
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require_once __DIR__.'/../inc/global.inc.php';
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require_once __DIR__.'/cm_webservice.php';
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/**
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* Web services available for the Course module. This class extends the WS class.
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*/
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class WSCMCourse extends WSCM
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{
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/**
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* Deletes a course.
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*
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* @param string API secret key
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* @param string Course id field name
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* @param string Course id value
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*/
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public function DeleteCourse(
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$secret_key,
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$course_id_field_name,
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$course_id_value
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) {
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$verifKey = $this->verifyKey($secret_key);
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if ($verifKey instanceof WSError) {
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$this->handleError($verifKey);
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} else {
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$result = $this->deleteCourseHelper(
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$course_id_field_name,
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$course_id_value
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);
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if ($result instanceof WSError) {
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$this->handleError($result);
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}
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}
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}
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/**
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* Deletes multiple courses.
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*
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* @param string API secret key
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* @param array Array of courses with elements of the form
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* array('course_id_field_name' => 'name_of_field', 'course_id_value' => 'value')
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*
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* @return array Array with elements like
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* array('course_id_value' => 'value', 'result' => array('code' => 0, 'message' => 'Operation was successful')).
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* Note that if the result array contains a code different
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* than 0, an error occured
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*/
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public function DeleteCourses($secret_key, $courses)
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{
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$verifKey = $this->verifyKey($secret_key);
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if ($verifKey instanceof WSError) {
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$this->handleError($verifKey);
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} else {
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$results = [];
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foreach ($courses as $course) {
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$result_tmp = [];
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$result_op = $this->deleteCourseHelper($course['course_id_field_name'], $course['course_id_value']);
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$result_tmp['course_id_value'] = $course['course_id_value'];
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if ($result_op instanceof WSCMError) {
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// Return the error in the results
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$result_tmp['result'] = $result_op->toArray();
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} else {
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$result_tmp['result'] = $this->getSuccessfulResult();
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}
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$results[] = $result_tmp;
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}
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return $results;
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}
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}
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/**
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* Creates a course.
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*
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* @param string API secret key
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* @param string Title
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* @param string Category code
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* @param string Wanted code. If it's not defined, it will be generated automatically
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* @param string Tutor name
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* @param string Course admin user id field name
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* @param string Course admin user id value
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* @param string Course language
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* @param string Course id field name
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* @param string Course id value
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* @param array Course extra fields
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*
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* @return int Course id generated
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*/
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public function CreateCourse(
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$secret_key,
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$title,
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$category_code,
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$wanted_code,
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$tutor_name,
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$course_admin_user_id_field_name,
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$course_admin_user_id_value,
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$language,
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$course_id_field_name,
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$course_id_value,
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$extras
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) {
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// First, verify the secret key
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$verifKey = $this->verifyKey($secret_key);
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if ($verifKey instanceof WSError) {
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$this->handleError($verifKey);
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} else {
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$result = $this->createCourseHelper(
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$title,
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$category_code,
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$wanted_code,
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$tutor_name,
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$course_admin_user_id_field_name,
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$course_admin_user_id_value,
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$language,
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$course_id_field_name,
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$course_id_value,
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$extras
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);
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if ($result instanceof WSError) {
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$this->handleError($result);
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} else {
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return $result;
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}
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}
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}
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/**
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* Create multiple courses.
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*
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* @param string API secret key
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* @param array Courses to be created, with elements following the structure presented in CreateCourse
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*
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* @return array Array with elements of the form
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* array('course_id_value' => 'original value sent', 'course_id_generated' => 'value_generated', 'result' => array('code' => 0, 'message' => 'Operation was successful'))
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*/
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public function CreateCourses($secret_key, $courses)
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{
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// First, verify the secret key
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$verifKey = $this->verifyKey($secret_key);
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if ($verifKey instanceof WSCMError) {
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$this->handleError($verifKey);
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} else {
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$results = [];
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foreach ($courses as $course) {
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$result_tmp = [];
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//reinitialize variables just in case
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$title = $category_code = $wanted_code = $tutor_name = $course_admin_user_id_field_name = $course_admin_user_id_value = $language = $course_id_field_name = $course_id_value = $extras = null;
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extract($course);
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$result = $this->createCourseHelper(
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$title,
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$category_code,
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$wanted_code,
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$tutor_name,
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$course_admin_user_id_field_name,
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$course_admin_user_id_value,
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$language,
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$course_id_field_name,
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$course_id_value,
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$extras
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);
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if ($result instanceof WSCMError) {
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$result_tmp['result'] = $result->toArray();
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$result_tmp['course_id_value'] = $course_id_value;
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$result_tmp['course_id_generated'] = 0;
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} else {
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$result_tmp['result'] = $this->getSuccessfulResult();
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$result_tmp['course_id_value'] = $course_id_value;
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$result_tmp['course_id_generated'] = $result;
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}
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$results[] = $result_tmp;
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}
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return $results;
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}
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}
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/**
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* Edits a course.
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*
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* @param string API secret key
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* @param string Course id field name
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* @param string Course id value
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* @param string Title
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* @param string Category code
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* @param string Department name
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* @param string Department url
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* @param string Course language
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* @param int Visibility
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* @param int Subscribe (0 = denied, 1 = allowed)
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* @param int Unsubscribe (0 = denied, 1 = allowed)
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* @param string Visual code
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* @param array Course extra fields
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*/
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public function EditCourse(
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$secret_key,
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$course_id_field_name,
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$course_id_value,
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$title,
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$category_code,
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$department_name,
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$department_url,
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$language,
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$visibility,
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$subscribe,
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$unsubscribe,
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$visual_code,
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$extras
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) {
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$verifKey = $this->verifyKey($secret_key);
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if ($verifKey instanceof WSCMError) {
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$this->handleError($verifKey);
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} else {
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$result = $this->editCourseHelper(
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$course_id_field_name,
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$course_id_value,
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$title,
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$category_code,
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$department_name,
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$department_url,
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$language,
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$visibility,
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$subscribe,
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$unsubscribe,
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$visual_code,
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$extras
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);
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if ($result instanceof WSCMError) {
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$this->handleError($result);
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}
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}
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}
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/**
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* List courses.
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*
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* @param string API secret key
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* @param string Course id field name. Use "chamilo_course_id" to use internal id
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*
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* @return array An array with elements of the form
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* ('id' => 'Course internal id', 'code' => 'Course code', 'title' => 'Course title', 'language' => 'Course language', 'visibility' => 'Course visibility',
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* 'category_name' => 'Name of the category of the course', 'number_students' => 'Number of students in the course', 'external_course_id' => 'External course id')
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*/
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public function ListCourses($secret_key, $course_id_field_name)
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{
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$verifKey = $this->verifyKey($secret_key);
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if ($verifKey instanceof WSError) {
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$this->handleError($verifKey);
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} else {
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$courses_result = [];
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$category_names = [];
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$courses = CourseManager::get_courses_list();
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foreach ($courses as $course) {
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$course_tmp = [];
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$course_tmp['id'] = $course['id'];
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$course_tmp['code'] = $course['code'];
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$course_tmp['title'] = $course['title'];
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$course_tmp['language'] = $course['course_language'];
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$course_tmp['visibility'] = $course['visibility'];
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// Determining category name
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if ($category_names[$course['category_code']]) {
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$course_tmp['category_name'] = $category_names[$course['category_code']];
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} else {
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$category = CourseManager::get_course_category($course['category_code']);
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$category_names[$course['category_code']] = $category['name'];
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$course_tmp['category_name'] = $category['name'];
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}
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// Determining number of students registered in course
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$user_list = CourseManager::get_user_list_from_course_code($course['code']);
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$course_tmp['number_students'] = count($user_list);
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// Determining external course id
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$course_tmp['external_course_id'] = CourseManager::get_course_extra_field_value($course_id_field_name, $course['code']);
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$courses_result[] = $course_tmp;
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}
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return $courses_result;
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}
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}
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/**
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* Subscribe user to a course.
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*
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* @param string API secret key
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* @param string Course id field name. Use "chamilo_course_id" to use internal id
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* @param string course id value
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* @param string User id field name. Use "chamilo_user_id" to use internal id
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* @param string User id value
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* @param int Status (1 = Teacher, 5 = Student)
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*/
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public function SubscribeUserToCourse(
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$secret_key,
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$course_id_field_name,
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$course_id_value,
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$user_id_field_name,
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$user_id_value,
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$status
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) {
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$verifKey = $this->verifyKey($secret_key);
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if ($verifKey instanceof WSError) {
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$this->handleError($verifKey);
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} else {
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$result = $this->changeUserSubscription(
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$course_id_field_name,
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$course_id_value,
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$user_id_field_name,
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$user_id_value,
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1,
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$status
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);
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if ($result instanceof WSError) {
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$this->handleError($result);
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}
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}
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}
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/**
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* Unsusbscribe user from course.
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*
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* @param string API secret key
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* @param string Course id field name. Use "chamilo_course_id" to use internal id
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* @param string course id value
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* @param string User id field name. Use "chamilo_user_id" to use internal id
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* @param string User id value
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*/
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public function UnsubscribeUserFromCourse(
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$secret_key,
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$course_id_field_name,
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$course_id_value,
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$user_id_field_name,
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$user_id_value
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) {
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$verifKey = $this->verifyKey($secret_key);
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if ($verifKey instanceof WSError) {
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$this->handleError($verifKey);
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} else {
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$result = $this->changeUserSubscription(
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$course_id_field_name,
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$course_id_value,
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$user_id_field_name,
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$user_id_value,
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0
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);
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if ($result instanceof WSError) {
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$this->handleError($result);
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}
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}
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}
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/**
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* Returns the descriptions of a course, along with their id.
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*
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* @param string API secret key
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* @param string Course id field name
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* @param string Course id value
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*
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* @return array Returns an array with elements of the form
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* array('course_desc_id' => 1, 'course_desc_title' => 'Title', 'course_desc_content' => 'Content')
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*/
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public function GetCourseDescriptions(
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$secret_key,
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$course_id_field_name,
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$course_id_value
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) {
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$verifKey = $this->verifyKey($secret_key);
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if ($verifKey instanceof WSError) {
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$this->handleError($verifKey);
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} else {
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$course_id = $this->getCourseId($course_id_field_name, $course_id_value);
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if ($course_id instanceof WSError) {
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return $course_id;
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} else {
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// Course exists, get its descriptions
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$descriptions = CourseDescription::get_descriptions($course_id);
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$results = [];
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foreach ($descriptions as $description) {
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$results[] = ['course_desc_id' => $description->get_description_type(),
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'course_desc_title' => $description->get_title(),
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'course_desc_content' => $description->get_content(), ];
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}
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return $results;
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}
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}
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}
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/**
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* Edit course description.
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*
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* @param string API secret key
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* @param string Course id field name
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* @param string Course id value
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* @param int Category id from course description
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* @param string Description title
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* @param string Course description content
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*/
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public function EditCourseDescription(
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$secret_key,
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$course_id_field_name,
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$course_id_value,
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$course_desc_id,
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$course_desc_title,
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$course_desc_content
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) {
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$verifKey = $this->verifyKey($secret_key);
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if ($verifKey instanceof WSError) {
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$this->handleError($verifKey);
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} else {
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$course_id = $this->getCourseId($course_id_field_name, $course_id_value);
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if ($course_id instanceof WSError) {
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return $course_id;
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} else {
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// Create the new course description
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$cd = new CourseDescription();
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$cd->set_description_type($course_desc_id);
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$cd->set_title($course_desc_title);
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$cd->set_content($course_desc_content);
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$cd->set_session_id(0);
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// Get course info
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$course_info = CourseManager::get_course_information(
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CourseManager::get_course_code_from_course_id($course_id)
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);
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// Check if this course description exists
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$descriptions = CourseDescription::get_descriptions($course_id);
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$exists = false;
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foreach ($descriptions as $description) {
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if ($description->get_description_type() == $course_desc_id) {
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$exists = true;
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}
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}
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$cd->set_course_id($course_info['real_id']);
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if (!$exists) {
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$cd->set_progress(0);
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$cd->insert();
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} else {
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$cd->update();
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}
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}
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}
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}
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public function unreadMessage($username, $password)
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{
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if ("valid" == $this->verifyUserPass($username, $password)) {
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$table_message = Database::get_main_table(TABLE_MESSAGE);
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$user_id = UserManager::get_user_id_from_username($username);
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$condition_msg_status = ' msg_status = 1 '; // define('MESSAGE_STATUS_UNREAD', '1');
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$sql_query = "SELECT COUNT(*) as number_messages
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FROM $table_message
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WHERE $condition_msg_status AND user_receiver_id=".$user_id;
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$sql_result = Database::query($sql_query);
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$result = Database::fetch_array($sql_result);
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return $result['number_messages'];
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}
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return "0";
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}
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public function get_message_data($username, $password)
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{
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if ("valid" == $this->verifyUserPass($username, $password)) {
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$user_id = get_user_id_from_username($username);
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}
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}
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public function nada($username, $password)
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{
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if ("valid" == $this->verifyUserPass($username, $password)) {
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return $username.$password;
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}
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return $username;
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}
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|
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/**
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* Deletes a course (helper method).
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*
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* @param string Course id field name
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* @param string Course id value
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*
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* @return mixed True if the course was successfully deleted, WSError otherwise
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*/
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protected function deleteCourseHelper(
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$course_id_field_name,
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$course_id_value
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) {
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$course_id = $this->getCourseId(
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$course_id_field_name,
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$course_id_value
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);
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if ($course_id instanceof WSCMError) {
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return $course_id;
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} else {
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$course_code = CourseManager::get_course_code_from_course_id(
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$course_id
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);
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CourseManager::delete_course($course_code);
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return true;
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}
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}
|
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|
|
/**
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|
* Creates a course (helper method).
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|
*
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|
* @param string Title
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|
* @param string Category code
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|
* @param string Wanted code. If it's not defined, it will be generated automatically
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|
* @param string Tutor name
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|
* @param string Course admin user id field name
|
|
* @param string Course admin user id value
|
|
* @param string Course language
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* @param string Course id field name
|
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* @param string Course id value
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* @param array Course extra fields
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*
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* @return mixed Generated id if creation was successful, WSError otherwise
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*/
|
|
protected function createCourseHelper(
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$title,
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$category_code,
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$wanted_code,
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$tutor_name,
|
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$course_admin_user_id_field_name,
|
|
$course_admin_user_id_value,
|
|
$language,
|
|
$course_id_field_name,
|
|
$course_id_value,
|
|
$extras
|
|
) {
|
|
// Add the original course id field name and value to the extra fields if needed
|
|
$extras_associative = [];
|
|
if ("chamilo_course_id" != $course_id_field_name) {
|
|
$extras_associative[$course_id_field_name] = $course_id_value;
|
|
}
|
|
foreach ($extras as $extra) {
|
|
$extras_associative[$extra['field_name']] = $extra['field_value'];
|
|
}
|
|
$course_admin_id = $this->getUserId($course_admin_user_id_field_name, $course_admin_user_id_value);
|
|
if ($course_admin_id instanceof WSError) {
|
|
return $course_admin_id;
|
|
}
|
|
if ('' == $wanted_code) {
|
|
$wanted_code = CourseManager::generate_course_code($title);
|
|
}
|
|
$result = create_course(
|
|
$wanted_code,
|
|
$title,
|
|
$tutor_name,
|
|
$category_code,
|
|
$language,
|
|
$course_admin_id,
|
|
$this->_configuration['db_prefix'],
|
|
0
|
|
);
|
|
if (!$result) {
|
|
return new WSError(202, 'There was an error creating the course');
|
|
} else {
|
|
// Update extra fields
|
|
foreach ($extras_associative as $fname => $fvalue) {
|
|
CourseManager::update_course_extra_field_value($result, $fname, $fvalue);
|
|
}
|
|
// Get course id
|
|
$course_info = CourseManager::get_course_information($result);
|
|
|
|
return $course_info['real_id'];
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Edits a course (helper method).
|
|
*
|
|
* @param string Course id field name
|
|
* @param string Course id value
|
|
* @param string Title
|
|
* @param string Category code
|
|
* @param string Department name
|
|
* @param string Department url
|
|
* @param string Course language
|
|
* @param int Visibility
|
|
* @param int Subscribe (0 = denied, 1 = allowed)
|
|
* @param int Unsubscribe (0 = denied, 1 = allowed)
|
|
* @param string Visual code
|
|
* @param array Course extra fields
|
|
*
|
|
* @return mixed True in case of success, WSError otherwise
|
|
*/
|
|
protected function editCourseHelper(
|
|
$course_id_field_name,
|
|
$course_id_value,
|
|
$title,
|
|
$category_code,
|
|
$department_name,
|
|
$department_url,
|
|
$language,
|
|
$visibility,
|
|
$subscribe,
|
|
$unsubscribe,
|
|
$visual_code,
|
|
$extras
|
|
) {
|
|
$course_id = $this->getCourseId($course_id_field_name, $course_id_value);
|
|
if ($course_id instanceof WSCMError) {
|
|
return $course_id;
|
|
} else {
|
|
$attributes = [];
|
|
if (!empty($title)) {
|
|
$attributes['title'] = $title;
|
|
}
|
|
if (!empty($category_code)) {
|
|
$attributes['category_code'] = $category_code;
|
|
}
|
|
if (!empty($department_name)) {
|
|
$attributes['department_name'] = $department_name;
|
|
}
|
|
if (!empty($department_url)) {
|
|
$attributes['department_url'] = $department_url;
|
|
}
|
|
if (!empty($language)) {
|
|
$attributes['course_language'] = $language;
|
|
}
|
|
if ('' != $visibility) {
|
|
$attributes['visibility'] = (int) $visibility;
|
|
}
|
|
if ('' != $subscribe) {
|
|
$attributes['subscribe'] = (int) $subscribe;
|
|
}
|
|
if ('' != $unsubscribe) {
|
|
$attributes['unsubscribe'] = (int) $unsubscribe;
|
|
}
|
|
if (!empty($visual_code)) {
|
|
$attributes['visual_code'] = $visual_code;
|
|
}
|
|
if (!empty($attributes)) {
|
|
CourseManager::update_attributes($course_id, $attributes);
|
|
}
|
|
if (!empty($extras)) {
|
|
$course_code = CourseManager::get_course_code_from_course_id($course_id);
|
|
$extras_associative = [];
|
|
foreach ($extras as $extra) {
|
|
$extras_associative[$extra['field_name']] = $extra['field_value'];
|
|
}
|
|
foreach ($extras_associative as $fname => $fvalue) {
|
|
CourseManager::update_extra_field_value($course_code, $fname, $fvalue);
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Subscribe or unsubscribe user to a course (helper method).
|
|
*
|
|
* @param string Course id field name. Use "chamilo_course_id" to use internal id
|
|
* @param string course id value
|
|
* @param string User id field name. Use "chamilo_user_id" to use internal id
|
|
* @param string User id value
|
|
* @param int Set to 1 to subscribe, 0 to unsubscribe
|
|
* @param int Status (STUDENT or TEACHER) Used for subscription only
|
|
*
|
|
* @return mixed True if subscription or unsubscription was successful, false otherwise
|
|
*/
|
|
protected function changeUserSubscription(
|
|
$course_id_field_name,
|
|
$course_id_value,
|
|
$user_id_field_name,
|
|
$user_id_value,
|
|
$state,
|
|
$status = STUDENT
|
|
) {
|
|
$course_id = $this->getCourseId($course_id_field_name, $course_id_value);
|
|
if ($course_id instanceof WSError) {
|
|
return $course_id;
|
|
} else {
|
|
$user_id = $this->getUserId($user_id_field_name, $user_id_value);
|
|
if ($user_id instanceof WSError) {
|
|
return $user_id;
|
|
} else {
|
|
$course_code = CourseManager::get_course_code_from_course_id($course_id);
|
|
if (0 == $state) {
|
|
// Unsubscribe user
|
|
CourseManager::unsubscribe_user($user_id, $course_code);
|
|
|
|
return true;
|
|
} else {
|
|
// Subscribe user
|
|
if (CourseManager::subscribeUser($user_id, $course_code, $status)) {
|
|
return true;
|
|
} else {
|
|
return new WSError(203, 'An error occured subscribing to this course');
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|