course_edit.php page has an option to add/remove teachers in all course session coaches.

main/admin/course_edit.php

@@ -121,13 +121,15 @@ $element_template = <<<EOT
 EOT;
 
 $renderer = $form->defaultRenderer();
-$renderer -> setElementTemplate($element_template, 'group');
-$form -> addGroup($group,'group',get_lang('CourseTeachers'),'</td><td width="80" align="center">'.
+$renderer->setElementTemplate($element_template, 'group');
+$form->addGroup($group,'group',get_lang('CourseTeachers'),'</td><td width="80" align="center">'.
 		'<input class="arrowr" style="width:30px;height:30px;padding-right:12px" type="button" onclick="moveItem(document.getElementById(\'platform_teachers\'), document.getElementById(\'course_teachers\'))" ><br><br>' .
 		'<input class="arrowl" style="width:30px;height:30px;padding-left:13px" type="button" onclick="moveItem(document.getElementById(\'course_teachers\'), document.getElementById(\'platform_teachers\'))" ></td><td>');
 
+$form->addElement('checkbox', 'add_teachers_to_sessions', array(null, null, get_lang('TeachersWillBeAddedAsCoachInAllCourseSessions')));
+
 $categories_select = $form->addElement('select', 'category_code', get_lang('CourseFaculty'), $categories , array('style'=>'width:350px','id'=>'category_code_id', 'class'=>'chzn-select'));
-$categories_select->addOption('-','');
+$categories_select->addOption('-', '');
 CourseManager::select_and_sort_categories($categories_select);
 
 $form->add_textfield('department_name', get_lang('CourseDepartment'), false,array ('size' => '60'));
@@ -215,7 +217,9 @@ if ($form->validate()) {
 			$extras[substr($key,6)] = $value;
 		}
 		if (substr($key,0,7)=='_extra_') {
-			if(!array_key_exists(substr($key,7), $extras)) $extras[substr($key,7)] = $value;
+			if (!array_key_exists(substr($key,7), $extras)) {
+                $extras[substr($key,7)] = $value;
+            }
 		}
     }
 
@@ -260,7 +264,8 @@ if ($form->validate()) {
 		}
 	}
 
-    CourseManager::updateTeachers($course_code, $teachers);
+
+    CourseManager::updateTeachers($course_code, $teachers, $course['add_teachers_to_sessions']);
 
 	$sql = "INSERT IGNORE INTO ".$course_user_table . " SET
 				course_code = '".Database::escape_string($course_code). "',

main/inc/lib/course.lib.php

@@ -3964,8 +3964,15 @@ class CourseManager {
         return $options;
     }
 
-    function updateTeachers($course_code, $teachers)
+    /**
+     * @param string $course_code
+     * @param array $teachers
+     * @param bool $editTeacherInSessions
+     * @return bool
+     */
+    public static function updateTeachers($course_code, $teachers, $editTeacherInSessions = false)
     {
+
         if (empty($teachers)) {
             return false;
         }
@@ -3982,6 +3989,7 @@ class CourseManager {
                 $cond.= " AND user_id <> '".$key."'";
             }
         }
+
         $sql = 'DELETE FROM '.$course_user_table.' WHERE course_code="'.Database::escape_string($course_code).'" AND status="1"'.$cond;
         Database::query($sql);
 
@@ -4007,5 +4015,25 @@ class CourseManager {
                 Database::query($sql);
             }
         }
+
+
+        if ($editTeacherInSessions) {
+            $sessions = SessionManager::get_session_by_course($course_code);
+            if (!empty($sessions)) {
+                foreach ($sessions as $session) {
+                    $alreadyAddedTeachers = SessionManager::getCoachByCourseSession($session['id'], $course_code);
+                    foreach ($teachers as $userId) {
+                        SessionManager::set_coach_to_course_session($userId, $session['id'], $course_code);
+                    }
+
+                    $teachersToDelete = array_diff($alreadyAddedTeachers, $teachers);
+                    if (!empty($teachersToDelete)) {
+                        foreach ($teachersToDelete as $userId) {
+                            SessionManager::set_coach_to_course_session($userId, $session['id'], $course_code, true);
+                        }
+                    }
+                }
+            }
+        }
     }
 }

main/inc/lib/sessionmanager.lib.php

@@ -1278,7 +1278,7 @@ class SessionManager
 	 * @param bool  	- optional, if is true the user don't be a coach now, otherwise it'll assign a coach
 	 * @return bool true if there are affected rows, otherwise false
 	 */
-	public static function set_coach_to_course_session($user_id, $session_id = 0, $course_code = '',$nocoach = false) {
+	public static function set_coach_to_course_session($user_id, $session_id = 0, $course_code = '', $nocoach = false) {
 
 		// Definition of variables
 		$user_id = intval($user_id);
@@ -2160,4 +2160,22 @@ class SessionManager
             'session_counter' =>  $session_counter
         );
     }
+
+    public static function getCoachByCourseSession($sessionId, $courseCode)
+    {
+        $tbl_session_rel_course_rel_user	= Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
+        $sessionId = intval($sessionId);
+        $courseCode = Database::escape_string($courseCode);
+
+        $sql = "SELECT id_user FROM $tbl_session_rel_course_rel_user WHERE id_session = '$sessionId' AND course_code = '$courseCode' AND status = 2";
+        $rs_coachs = Database::query($sql);
+
+        $coachs_course_session = array();
+        if (Database::num_rows($rs_coachs) > 0){
+            while ($row_coachs = Database::fetch_row($rs_coachs)) {
+                $coachs_course_session[] = $row_coachs[0];
+            }
+        }
+        return $coachs_course_session;
+    }
 }