Fixed function prototype missing - Fixes CT#1906

main/inc/lib/course.lib.php

@@ -2784,6 +2784,27 @@ class CourseManager {
         }
         return $output;
     }
+
+    /**
+	 * Get the course id based on the original id and field name in the extra fields. Returns 0 if course was not found
+	 *
+	 * @param string Original course id
+	 * @param string Original field name
+	 * @return int Course id
+	 */
+	public static function get_course_id_from_original_id($original_course_id_value, $original_course_id_name) {
+		$t_cfv = Database::get_main_table(TABLE_MAIN_COURSE_FIELD_VALUES);
+		$table_field = Database::get_main_table(TABLE_MAIN_COURSE_FIELD);
+		$sql_course = "SELECT id FROM $table_field cf INNER JOIN $t_cfv cfv ON cfv.field_id=cf.id WHERE field_variable='$original_course_id_name' AND field_value='$original_course_id_value'";
+		$res = Database::query($sql_course);
+		$row = Database::fetch_object($res_course);
+		if($row != false) {
+			return $row->id;
+		} else {
+			return 0;
+		}
+	}
+
     /**
      * Display code for one specific course a logged in user is subscribed to.
      * Shows a link to the course, what's new icons...