MDL-50964 core_group: New Web Service core_group_get_activity_groupmode

group/externallib.php

@@ -1290,6 +1290,72 @@ class core_group_external extends external_api {
         );
     }
 
+    /**
+     * Returns description of method parameters
+     *
+     * @return external_function_parameters
+     * @since Moodle 3.0
+     */
+    public static function get_activity_groupmode_parameters() {
+        return new external_function_parameters(
+            array(
+                'cmid' => new external_value(PARAM_INT, 'course module id')
+            )
+        );
+    }
+
+    /**
+     * Returns effective groupmode used in a given activity.
+     *
+     * @throws moodle_exception
+     * @param int $cmid course module id.
+     * @return array containing the group mode and possible warnings.
+     * @since Moodle 3.0
+     * @throws moodle_exception
+     */
+    public static function get_activity_groupmode($cmid) {
+        global $USER;
+
+        // Warnings array, it can be empty at the end but is mandatory.
+        $warnings = array();
+
+        $params = array(
+            'cmid' => $cmid
+        );
+        $params = self::validate_parameters(self::get_activity_groupmode_parameters(), $params);
+        $cmid = $params['cmid'];
+
+        $cm = get_coursemodule_from_id(null, $cmid, 0, false, MUST_EXIST);
+
+        // Security checks.
+        $context = context_module::instance($cm->id);
+        self::validate_context($context);
+
+        $groupmode = groups_get_activity_groupmode($cm);
+
+        $results = array(
+            'groupmode' => $groupmode,
+            'warnings' => $warnings
+        );
+        return $results;
+    }
+
+    /**
+     * Returns description of method result value.
+     *
+     * @return external_description
+     * @since Moodle 3.0
+     */
+    public static function get_activity_groupmode_returns() {
+        return new external_single_structure(
+            array(
+                'groupmode' => new external_value(PARAM_INT, 'group mode:
+                                                    0 for no groups, 1 for separate groups, 2 for visible groups'),
+                'warnings' => new external_warnings(),
+            )
+        );
+    }
+
 }
 
 /**

group/tests/externallib_test.php

@@ -453,4 +453,50 @@ class core_group_externallib_testcase extends externallib_advanced_testcase {
         $this->assertCount(1, $groups['warnings']);
 
     }
+
+    /**
+     * Test get_activity_groupmode
+     */
+    public function test_get_activity_groupmode() {
+        global $DB;
+
+        $this->resetAfterTest(true);
+
+        $generator = self::getDataGenerator();
+
+        $student = $generator->create_user();
+        $course = $generator->create_course();
+        $othercourse = $generator->create_course();
+
+        $studentrole = $DB->get_record('role', array('shortname' => 'student'));
+        $generator->enrol_user($student->id, $course->id, $studentrole->id);
+
+        $forum1 = $generator->create_module("forum", array('course' => $course->id), array('groupmode' => VISIBLEGROUPS));
+        $forum2 = $generator->create_module("forum", array('course' => $othercourse->id));
+        $forum3 = $generator->create_module("forum", array('course' => $course->id), array('visible' => 0));
+
+        // Request data for tests.
+        $cm1 = get_coursemodule_from_instance("forum", $forum1->id);
+        $cm2 = get_coursemodule_from_instance("forum", $forum2->id);
+        $cm3 = get_coursemodule_from_instance("forum", $forum3->id);
+
+        $this->setUser($student);
+
+        $data = core_group_external::get_activity_groupmode($cm1->id);
+        $data = external_api::clean_returnvalue(core_group_external::get_activity_groupmode_returns(), $data);
+        $this->assertEquals(VISIBLEGROUPS, $data['groupmode']);
+
+        try {
+            $data = core_group_external::get_activity_groupmode($cm2->id);
+        } catch (moodle_exception $e) {
+            $this->assertEquals('requireloginerror', $e->errorcode);
+        }
+
+        try {
+            $data = core_group_external::get_activity_groupmode($cm3->id);
+        } catch (moodle_exception $e) {
+            $this->assertEquals('requireloginerror', $e->errorcode);
+        }
+
+    }
 }

lib/db/services.php

@@ -323,6 +323,15 @@ $functions = array(
         'capabilities'  => 'moodle/course:managegroups',
     ),
 
+    'core_group_get_activity_groupmode' => array(
+        'classname'     => 'core_group_external',
+        'methodname'    => 'get_activity_groupmode',
+        'classpath'     => 'group/externallib.php',
+        'description'   => 'Returns effective groupmode used in a given activity.',
+        'type'          => 'read',
+        'capabilities'  => '',
+    ),
+
     'core_notes_get_course_notes' => array(
         'classname'     => 'core_notes_external',
         'methodname'    => 'get_course_notes',
@@ -1136,6 +1145,7 @@ $services = array(
             'core_message_get_blocked_users',
             'gradereport_user_get_grades_table',
             'core_group_get_course_user_groups',
+            'core_group_get_activity_groupmode',
             'core_user_remove_user_device',
             'core_course_get_courses',
             'core_completion_update_activity_completion_status_manually',

version.php

@@ -29,7 +29,7 @@
 
 defined('MOODLE_INTERNAL') || die();
 
-$version  = 2015091000.00;              // YYYYMMDD      = weekly release date of this DEV branch.
+$version  = 2015091000.01;              // YYYYMMDD      = weekly release date of this DEV branch.
                                         //         RR    = release increments - 00 in DEV branches.
                                         //           .XX = incremental changes.