/**
* Test delete_choice_responses
*/
public function test_delete_choice_responses()
{
global $DB;
$this->resetAfterTest(true);
$course = self::getDataGenerator()->create_course();
$params = new stdClass();
$params->course = $course->id;
$params->option = array('fried rice', 'spring rolls', 'sweet and sour pork', 'satay beef', 'gyouza');
$params->name = 'First Choice Activity';
$params->showresults = CHOICE_SHOWRESULTS_ALWAYS;
$params->allowmultiple = 1;
$params->showunanswered = 1;
$choice = self::getDataGenerator()->create_module('choice', $params);
$cm = get_coursemodule_from_id('choice', $choice->cmid);
$choiceinstance = choice_get_choice($cm->instance);
$options = array_keys($choiceinstance->option);
$student = $this->getDataGenerator()->create_user();
$studentrole = $DB->get_record('role', array('shortname' => 'student'));
// Enroll student in Course1.
self::getDataGenerator()->enrol_user($student->id, $course->id, $studentrole->id);
$this->setUser($student);
$results = mod_choice_external::submit_choice_response($choice->id, array($options[1], $options[2]));
$results = external_api::clean_returnvalue(mod_choice_external::submit_choice_response_returns(), $results);
$myresponses = array_keys(choice_get_my_response($choice));
// Try to delete responses when allow update is false.
try {
mod_choice_external::delete_choice_responses($choice->id, array($myresponses[0], $myresponses[0]));
$this->fail('Exception expected due to missing permissions.');
} catch (required_capability_exception $e) {
$this->assertEquals('nopermissions', $e->errorcode);
}
// Set allow update to true, and a passed time close.
$DB->set_field('choice', 'allowupdate', 1, array('id' => $choice->id));
$DB->set_field('choice', 'timeclose', time() - DAYSECS, array('id' => $choice->id));
try {
mod_choice_external::delete_choice_responses($choice->id, array($myresponses[0], $myresponses[1]));
$this->fail('Exception expected due to expired choice.');
} catch (moodle_exception $e) {
$this->assertEquals('expired', $e->errorcode);
}
// Reset time close. We should be able now to delete all the responses.
$DB->set_field('choice', 'timeclose', 0, array('id' => $choice->id));
$results = mod_choice_external::delete_choice_responses($choice->id, array($myresponses[0], $myresponses[1]));
$results = external_api::clean_returnvalue(mod_choice_external::delete_choice_responses_returns(), $results);
$this->assertTrue($results['status']);
$this->assertCount(0, $results['warnings']);
// Now, in the DB 0 responses.
$this->assertCount(0, choice_get_my_response($choice));
// Submit again the responses.
$results = mod_choice_external::submit_choice_response($choice->id, array($options[1], $options[2]));
$results = external_api::clean_returnvalue(mod_choice_external::submit_choice_response_returns(), $results);
$myresponses = array_keys(choice_get_my_response($choice));
// Delete only one response.
$results = mod_choice_external::delete_choice_responses($choice->id, array($myresponses[0]));
$results = external_api::clean_returnvalue(mod_choice_external::delete_choice_responses_returns(), $results);
$this->assertTrue($results['status']);
$this->assertCount(0, $results['warnings']);
// Now, in the DB 1 response still.
$this->assertCount(1, choice_get_my_response($choice));
// Delete the remaining response, passing 2 invalid responses ids.
$results = mod_choice_external::delete_choice_responses($choice->id, array($myresponses[1], $myresponses[0] + 2, $myresponses[0] + 3));
$results = external_api::clean_returnvalue(mod_choice_external::delete_choice_responses_returns(), $results);
$this->assertTrue($results['status']);
// 2 warnings, 2 invalid responses.
$this->assertCount(2, $results['warnings']);
// Now, in the DB 0 responses.
$this->assertCount(0, choice_get_my_response($choice));
// Now, as an admin we must be able to delete all the responses under any condition.
// Submit again the responses.
$results = mod_choice_external::submit_choice_response($choice->id, array($options[1], $options[2]));
$results = external_api::clean_returnvalue(mod_choice_external::submit_choice_response_returns(), $results);
$studentresponses = array_keys(choice_get_my_response($choice));
$this->setAdminUser();
$DB->set_field('choice', 'allowupdate', 0, array('id' => $choice->id));
$DB->set_field('choice', 'timeclose', time() - DAYSECS, array('id' => $choice->id));
$results = mod_choice_external::delete_choice_responses($choice->id, array($studentresponses[0], $studentresponses[1]));
$results = external_api::clean_returnvalue(mod_choice_external::delete_choice_responses_returns(), $results);
$this->assertTrue($results['status']);
$this->assertCount(0, $results['warnings']);
// Submit again the responses.
$DB->set_field('choice', 'timeclose', 0, array('id' => $choice->id));
$results = mod_choice_external::submit_choice_response($choice->id, array($options[1], $options[2]));
$results = external_api::clean_returnvalue(mod_choice_external::submit_choice_response_returns(), $results);
// With other user account too, so we can test all the responses are deleted.
choice_user_submit_response(array($options[1], $options[2]), $choice, $student->id, $course, $cm);
// Test deleting all (not passing the answers ids), event not only mine.
$results = mod_choice_external::delete_choice_responses($choice->id);
$results = external_api::clean_returnvalue(mod_choice_external::delete_choice_responses_returns(), $results);
$this->assertTrue($results['status']);
$this->assertCount(0, $results['warnings']);
$this->assertCount(0, choice_get_all_responses($choice));
// Now, in the DB 0 responses.
$this->setUser($student);
// Submit again respones.
$DB->set_field('choice', 'allowupdate', 1, array('id' => $choice->id));
$DB->set_field('choice', 'timeclose', 0, array('id' => $choice->id));
$results = mod_choice_external::submit_choice_response($choice->id, array($options[1], $options[2]));
$results = external_api::clean_returnvalue(mod_choice_external::submit_choice_response_returns(), $results);
// Delete all responses.
$results = mod_choice_external::delete_choice_responses($choice->id);
$results = external_api::clean_returnvalue(mod_choice_external::delete_choice_responses_returns(), $results);
$this->assertTrue($results['status']);
$this->assertCount(0, $results['warnings']);
$this->assertCount(0, choice_get_my_response($choice));
}
/**
* Delete the given submitted responses in a choice
*
* @param int $choiceid the choice instance id
* @param array $responses the response ids, empty for deleting all the user responses
* @return array status information and warnings
* @throws moodle_exception
* @since Moodle 3.0
*/
public static function delete_choice_responses($choiceid, $responses = array())
{
$status = false;
$warnings = array();
$params = self::validate_parameters(self::delete_choice_responses_parameters(), array('choiceid' => $choiceid, 'responses' => $responses));
if (!($choice = choice_get_choice($params['choiceid']))) {
throw new moodle_exception("invalidcoursemodule", "error");
}
list($course, $cm) = get_course_and_cm_from_instance($choice, 'choice');
$context = context_module::instance($cm->id);
self::validate_context($context);
require_capability('mod/choice:choose', $context);
// If we have the capability, delete all the passed responses.
if (has_capability('mod/choice:deleteresponses', $context)) {
if (empty($params['responses'])) {
// Get all the responses for the choice.
$params['responses'] = array_keys(choice_get_all_responses($choice));
}
$status = choice_delete_responses($params['responses'], $choice, $cm, $course);
} else {
if ($choice->allowupdate) {
// Check if we can delate our own responses.
$timenow = time();
if ($choice->timeclose != 0) {
if ($timenow > $choice->timeclose) {
throw new moodle_exception("expired", "choice", '', userdate($choice->timeclose));
}
}
// Delete only our responses.
$myresponses = array_keys(choice_get_my_response($choice));
if (empty($params['responses'])) {
$todelete = $myresponses;
} else {
$todelete = array();
foreach ($params['responses'] as $response) {
if (!in_array($response, $myresponses)) {
$warnings[] = array('item' => 'response', 'itemid' => $response, 'warningcode' => 'nopermissions', 'message' => 'No permission to delete this response');
} else {
$todelete[] = $response;
}
}
}
$status = choice_delete_responses($todelete, $choice, $cm, $course);
} else {
// The user requires the capability to delete responses.
throw new required_capability_exception($context, 'mod/choice:deleteresponses', 'nopermissions', '');
}
}
return array('status' => $status, 'warnings' => $warnings);
}
