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MDL-51579 core_course: New Web Service get_course_module_by_instance

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This commit is contained in:
Juan Leyva 2015-09-28 09:35:49 +02:00
parent 35d3e8b00b
commit 13bb68199e
4 changed files with 128 additions and 1 deletions
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48
course/externallib.php
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@ -2418,6 +2418,54 @@ class core_course_external extends external_api {
);
}
/**
* Returns description of method parameters
*
* @return external_function_parameters
* @since Moodle 3.0
*/
public static function get_course_module_by_instance_parameters() {
return new external_function_parameters(
array(
'module' => new external_value(PARAM_COMPONENT, 'The module name'),
'instance' => new external_value(PARAM_INT, 'The module instance id')
)
);
}
/**
* Return information about a course module.
*
* @param int $module the module name
* @param int $instance the module instance
* @return array of warnings and the course module
* @since Moodle 3.0
* @throws moodle_exception
*/
public static function get_course_module_by_instance($module, $instance) {
$params = self::validate_parameters(self::get_course_module_by_instance_parameters(),
array(
'module' => $module,
'instance' => $instance,
));
$warnings = array();
$cm = get_coursemodule_from_instance($params['module'], $params['instance'], 0, false, MUST_EXIST);
return self::get_course_module($cm->id);
}
/**
* Returns description of method result value
*
* @return external_description
* @since Moodle 3.0
*/
public static function get_course_module_by_instance_returns() {
return self::get_course_module_returns();
}
}
/**

70
course/tests/externallib_test.php
View file

@ -1584,4 +1584,74 @@ class core_course_externallib_testcase extends externallib_advanced_testcase {
$this->assertEquals($chat->id, $result['cm']['instance']);
}
/**
* Test get_course_module_by_instance
*/
public function test_get_course_module_by_instance() {
global $DB;
$this->resetAfterTest(true);
$this->setAdminUser();
$course = self::getDataGenerator()->create_course();
$record = array(
'course' => $course->id,
'name' => 'First Chat'
);
$options = array(
'idnumber' => 'ABC',
'visible' => 0
);
// Hidden activity.
$chat = self::getDataGenerator()->create_module('chat', $record, $options);
// Test admin user can see the complete hidden activity.
$result = core_course_external::get_course_module_by_instance('chat', $chat->id);
$result = external_api::clean_returnvalue(core_course_external::get_course_module_by_instance_returns(), $result);
$this->assertCount(0, $result['warnings']);
// Test we retrieve all the fields.
$this->assertCount(22, $result['cm']);
$this->assertEquals($record['name'], $result['cm']['name']);
$this->assertEquals($options['idnumber'], $result['cm']['idnumber']);
$student = $this->getDataGenerator()->create_user();
$studentrole = $DB->get_record('role', array('shortname' => 'student'));
self::getDataGenerator()->enrol_user($student->id, $course->id, $studentrole->id);
$this->setUser($student);
// The user shouldn't be able to see the activity.
try {
core_course_external::get_course_module_by_instance('chat', $chat->id);
$this->fail('Exception expected due to invalid permissions.');
} catch (moodle_exception $e) {
$this->assertEquals('requireloginerror', $e->errorcode);
}
// Make module visible.
set_coursemodule_visible($chat->cmid, 1);
// Test student user.
$result = core_course_external::get_course_module_by_instance('chat', $chat->id);
$result = external_api::clean_returnvalue(core_course_external::get_course_module_by_instance_returns(), $result);
$this->assertCount(0, $result['warnings']);
// Test we retrieve only the few files we can see.
$this->assertCount(11, $result['cm']);
$this->assertEquals($chat->cmid, $result['cm']['id']);
$this->assertEquals($course->id, $result['cm']['course']);
$this->assertEquals('chat', $result['cm']['modname']);
$this->assertEquals($chat->id, $result['cm']['instance']);
// Try with an invalid module name.
try {
core_course_external::get_course_module_by_instance('abc', $chat->id);
$this->fail('Exception expected due to invalid module name.');
} catch (dml_read_exception $e) {
$this->assertEquals('dmlreadexception', $e->errorcode);
}
}
}