PHP quiz::create方法代码示例

 public function test_quiz_report_overview_report_forcesubmit_specific_attempt()
 {
     global $DB;
     $this->resetAfterTest();
     $generator = $this->getDataGenerator();
     $quizgenerator = $generator->get_plugin_generator('mod_quiz');
     $questiongenerator = $generator->get_plugin_generator('core_question');
     // Make a user to do the quiz.
     $user1 = $generator->create_user();
     $user2 = $generator->create_user();
     $user3 = $generator->create_user();
     // Create our course.
     $course = $generator->create_course(array('visible' => true));
     // Create the quiz.
     $quiz = $quizgenerator->create_instance(array('course' => $course->id, 'visible' => true, 'questionsperpage' => 0, 'grade' => 100.0, 'sumgrades' => 2));
     // Create two questions.
     $cat = $questiongenerator->create_question_category();
     $saq = $questiongenerator->create_question('shortanswer', null, array('category' => $cat->id));
     $numq = $questiongenerator->create_question('numerical', null, array('category' => $cat->id));
     // Add the questions to the quiz.
     quiz_add_quiz_question($saq->id, $quiz);
     quiz_add_quiz_question($numq->id, $quiz);
     // Get a quiz object with user access overrides.
     $quizobj = quiz::create($quiz->id, $user1->id);
     $quizobj2 = quiz::create($quiz->id, $user2->id);
     $quizobj3 = quiz::create($quiz->id, $user3->id);
     // Start the attempt.
     $quba = question_engine::make_questions_usage_by_activity('mod_quiz', $quizobj->get_context());
     $quba->set_preferred_behaviour($quizobj->get_quiz()->preferredbehaviour);
     $quba2 = question_engine::make_questions_usage_by_activity('mod_quiz', $quizobj2->get_context());
     $quba2->set_preferred_behaviour($quizobj2->get_quiz()->preferredbehaviour);
     $quba3 = question_engine::make_questions_usage_by_activity('mod_quiz', $quizobj3->get_context());
     $quba3->set_preferred_behaviour($quizobj3->get_quiz()->preferredbehaviour);
     // Create a quiz attempt.
     $timenow = time();
     $attempt = quiz_create_attempt($quizobj, 1, false, $timenow, false, $user1->id);
     $attempt2 = quiz_create_attempt($quizobj2, 1, false, $timenow, false, $user2->id);
     $attempt3 = quiz_create_attempt($quizobj3, 1, false, $timenow, false, $user3->id);
     // Start the attempt.
     quiz_start_new_attempt($quizobj, $quba, $attempt, 1, $timenow);
     quiz_attempt_save_started($quizobj, $quba, $attempt);
     quiz_start_new_attempt($quizobj2, $quba2, $attempt2, 1, $timenow);
     quiz_attempt_save_started($quizobj2, $quba2, $attempt2);
     quiz_start_new_attempt($quizobj3, $quba3, $attempt3, 1, $timenow);
     quiz_attempt_save_started($quizobj3, $quba3, $attempt3);
     // Answer first question and set it overdue.
     $tosubmit = array(1 => array('answer' => 'frog'));
     $tosubmit2 = array(1 => array('answer' => 'tiger'));
     $tosubmit3 = array(1 => array('answer' => 'tiger'));
     $attemptobj = quiz_attempt::create($attempt->id);
     $attemptobj->process_submitted_actions($timenow, true, $tosubmit);
     $attemptobj2 = quiz_attempt::create($attempt2->id);
     $attemptobj2->process_submitted_actions($timenow, true, $tosubmit2);
     $attemptobj3 = quiz_attempt::create($attempt3->id);
     $attemptobj3->process_submitted_actions($timenow, true, $tosubmit3);
     // Finish the attempt.
     $attemptobj = quiz_attempt::create($attempt->id);
     $this->assertTrue($attemptobj->has_response_to_at_least_one_graded_question());
     $attemptobj->process_abandon($timenow, false);
     // Re-load quiz attempt2 data.
     $attemptobj = quiz_attempt::create($attempt->id);
     $attemptobj2 = quiz_attempt::create($attempt2->id);
     $attemptobj3 = quiz_attempt::create($attempt3->id);
     // Check that the state of the attempt is as expected.
     $this->assertEquals(1, $attemptobj->get_attempt_number());
     $this->assertEquals(quiz_attempt::ABANDONED, $attemptobj->get_state());
     $this->assertEquals($user1->id, $attemptobj->get_userid());
     $this->assertTrue($attemptobj->has_response_to_at_least_one_graded_question());
     // Check that the state of the attempt2 is as expected.
     $this->assertEquals(1, $attemptobj2->get_attempt_number());
     $this->assertEquals(quiz_attempt::OVERDUE, $attemptobj2->get_state());
     $this->assertEquals($user2->id, $attemptobj2->get_userid());
     $this->assertTrue($attemptobj2->has_response_to_at_least_one_graded_question());
     // Check that the state of the attempt3 is as expected.
     $this->assertEquals(1, $attemptobj3->get_attempt_number());
     $this->assertEquals(quiz_attempt::OVERDUE, $attemptobj3->get_state());
     $this->assertEquals($user3->id, $attemptobj3->get_userid());
     $this->assertTrue($attemptobj3->has_response_to_at_least_one_graded_question());
     // Force submit the attempts.
     $overviewreport = new quiz_overview_report_testable();
     $overviewreport->forcesubmit_attempts($quiz, false, array(), array($attempt->id, $attempt3->id));
     // Check that it is now finished.
     $attemptobj = quiz_attempt::create($attempt->id);
     $this->assertEquals(quiz_attempt::FINISHED, $attemptobj->get_state());
     $attemptobj2 = quiz_attempt::create($attempt2->id);
     $this->assertEquals(quiz_attempt::OVERDUE, $attemptobj2->get_state());
     $attemptobj3 = quiz_attempt::create($attempt3->id);
     $this->assertEquals(quiz_attempt::FINISHED, $attemptobj3->get_state());
 }

 protected function prepare_quiz_data()
 {
     $this->resetAfterTest(true);
     // Create a course
     $course = $this->getDataGenerator()->create_course();
     // Make a quiz.
     $quizgenerator = $this->getDataGenerator()->get_plugin_generator('mod_quiz');
     $quiz = $quizgenerator->create_instance(array('course' => $course->id, 'questionsperpage' => 0, 'grade' => 100.0, 'sumgrades' => 2));
     $cm = get_coursemodule_from_instance('quiz', $quiz->id, $course->id);
     // Create a couple of questions.
     $questiongenerator = $this->getDataGenerator()->get_plugin_generator('core_question');
     $cat = $questiongenerator->create_question_category();
     $saq = $questiongenerator->create_question('shortanswer', null, array('category' => $cat->id));
     $numq = $questiongenerator->create_question('numerical', null, array('category' => $cat->id));
     // Add them to the quiz.
     quiz_add_quiz_question($saq->id, $quiz);
     quiz_add_quiz_question($numq->id, $quiz);
     // Make a user to do the quiz.
     $user1 = $this->getDataGenerator()->create_user();
     $this->setUser($user1);
     $quizobj = quiz::create($quiz->id, $user1->id);
     // Start the attempt.
     $quba = question_engine::make_questions_usage_by_activity('mod_quiz', $quizobj->get_context());
     $quba->set_preferred_behaviour($quizobj->get_quiz()->preferredbehaviour);
     $timenow = time();
     $attempt = quiz_create_attempt($quizobj, 1, false, $timenow);
     quiz_start_new_attempt($quizobj, $quba, $attempt, 1, $timenow);
     quiz_attempt_save_started($quizobj, $quba, $attempt);
     return array($quizobj, $quba, $attempt);
 }

 /**
  * Test checking the completion state of a quiz.
  */
 public function test_quiz_get_completion_state()
 {
     global $CFG, $DB;
     $this->resetAfterTest(true);
     // Enable completion before creating modules, otherwise the completion data is not written in DB.
     $CFG->enablecompletion = true;
     // Create a course and student.
     $course = $this->getDataGenerator()->create_course(array('enablecompletion' => true));
     $passstudent = $this->getDataGenerator()->create_user();
     $failstudent = $this->getDataGenerator()->create_user();
     $studentrole = $DB->get_record('role', array('shortname' => 'student'));
     $this->assertNotEmpty($studentrole);
     // Enrol students.
     $this->assertTrue($this->getDataGenerator()->enrol_user($passstudent->id, $course->id, $studentrole->id));
     $this->assertTrue($this->getDataGenerator()->enrol_user($failstudent->id, $course->id, $studentrole->id));
     // Make a scale and an outcome.
     $scale = $this->getDataGenerator()->create_scale();
     $data = array('courseid' => $course->id, 'fullname' => 'Team work', 'shortname' => 'Team work', 'scaleid' => $scale->id);
     $outcome = $this->getDataGenerator()->create_grade_outcome($data);
     // Make a quiz with the outcome on.
     $quizgenerator = $this->getDataGenerator()->get_plugin_generator('mod_quiz');
     $data = array('course' => $course->id, 'outcome_' . $outcome->id => 1, 'grade' => 100.0, 'questionsperpage' => 0, 'sumgrades' => 1, 'completion' => COMPLETION_TRACKING_AUTOMATIC, 'completionpass' => 1);
     $quiz = $quizgenerator->create_instance($data);
     $cm = get_coursemodule_from_id('quiz', $quiz->cmid);
     // Create a couple of questions.
     $questiongenerator = $this->getDataGenerator()->get_plugin_generator('core_question');
     $cat = $questiongenerator->create_question_category();
     $question = $questiongenerator->create_question('numerical', null, array('category' => $cat->id));
     quiz_add_quiz_question($question->id, $quiz);
     $quizobj = quiz::create($quiz->id, $passstudent->id);
     // Set grade to pass.
     $item = grade_item::fetch(array('courseid' => $course->id, 'itemtype' => 'mod', 'itemmodule' => 'quiz', 'iteminstance' => $quiz->id, 'outcomeid' => null));
     $item->gradepass = 80;
     $item->update();
     // Start the passing attempt.
     $quba = question_engine::make_questions_usage_by_activity('mod_quiz', $quizobj->get_context());
     $quba->set_preferred_behaviour($quizobj->get_quiz()->preferredbehaviour);
     $timenow = time();
     $attempt = quiz_create_attempt($quizobj, 1, false, $timenow, false, $passstudent->id);
     quiz_start_new_attempt($quizobj, $quba, $attempt, 1, $timenow);
     quiz_attempt_save_started($quizobj, $quba, $attempt);
     // Process some responses from the student.
     $attemptobj = quiz_attempt::create($attempt->id);
     $tosubmit = array(1 => array('answer' => '3.14'));
     $attemptobj->process_submitted_actions($timenow, false, $tosubmit);
     // Finish the attempt.
     $attemptobj = quiz_attempt::create($attempt->id);
     $this->assertTrue($attemptobj->has_response_to_at_least_one_graded_question());
     $attemptobj->process_finish($timenow, false);
     // Start the failing attempt.
     $quba = question_engine::make_questions_usage_by_activity('mod_quiz', $quizobj->get_context());
     $quba->set_preferred_behaviour($quizobj->get_quiz()->preferredbehaviour);
     $timenow = time();
     $attempt = quiz_create_attempt($quizobj, 1, false, $timenow, false, $failstudent->id);
     quiz_start_new_attempt($quizobj, $quba, $attempt, 1, $timenow);
     quiz_attempt_save_started($quizobj, $quba, $attempt);
     // Process some responses from the student.
     $attemptobj = quiz_attempt::create($attempt->id);
     $tosubmit = array(1 => array('answer' => '0'));
     $attemptobj->process_submitted_actions($timenow, false, $tosubmit);
     // Finish the attempt.
     $attemptobj = quiz_attempt::create($attempt->id);
     $this->assertTrue($attemptobj->has_response_to_at_least_one_graded_question());
     $attemptobj->process_finish($timenow, false);
     // Check the results.
     $this->assertTrue(quiz_get_completion_state($course, $cm, $passstudent->id, 'return'));
     $this->assertFalse(quiz_get_completion_state($course, $cm, $failstudent->id, 'return'));
 }

 /**
  * Test start_attempt
  */
 public function test_start_attempt()
 {
     global $DB;
     // Create a new quiz with attempts.
     $quizgenerator = $this->getDataGenerator()->get_plugin_generator('mod_quiz');
     $data = array('course' => $this->course->id, 'sumgrades' => 1);
     $quiz = $quizgenerator->create_instance($data);
     $context = context_module::instance($quiz->cmid);
     try {
         mod_quiz_external::start_attempt($quiz->id);
         $this->fail('Exception expected due to missing questions.');
     } catch (moodle_quiz_exception $e) {
         $this->assertEquals('noquestionsfound', $e->errorcode);
     }
     // Create a question.
     $questiongenerator = $this->getDataGenerator()->get_plugin_generator('core_question');
     $cat = $questiongenerator->create_question_category();
     $question = $questiongenerator->create_question('numerical', null, array('category' => $cat->id));
     quiz_add_quiz_question($question->id, $quiz);
     $quizobj = quiz::create($quiz->id, $this->student->id);
     // Set grade to pass.
     $item = grade_item::fetch(array('courseid' => $this->course->id, 'itemtype' => 'mod', 'itemmodule' => 'quiz', 'iteminstance' => $quiz->id, 'outcomeid' => null));
     $item->gradepass = 80;
     $item->update();
     $this->setUser($this->student);
     // Try to open attempt in closed quiz.
     $quiz->timeopen = time() - WEEKSECS;
     $quiz->timeclose = time() - DAYSECS;
     $DB->update_record('quiz', $quiz);
     $result = mod_quiz_external::start_attempt($quiz->id);
     $result = external_api::clean_returnvalue(mod_quiz_external::start_attempt_returns(), $result);
     $this->assertEquals([], $result['attempt']);
     $this->assertCount(1, $result['warnings']);
     // Now with a password.
     $quiz->timeopen = 0;
     $quiz->timeclose = 0;
     $quiz->password = 'abc';
     $DB->update_record('quiz', $quiz);
     try {
         mod_quiz_external::start_attempt($quiz->id, array(array("name" => "quizpassword", "value" => 'bad')));
         $this->fail('Exception expected due to invalid passwod.');
     } catch (moodle_exception $e) {
         $this->assertEquals(get_string('passworderror', 'quizaccess_password'), $e->errorcode);
     }
     // Now, try everything correct.
     $result = mod_quiz_external::start_attempt($quiz->id, array(array("name" => "quizpassword", "value" => 'abc')));
     $result = external_api::clean_returnvalue(mod_quiz_external::start_attempt_returns(), $result);
     $this->assertEquals(1, $result['attempt']['attempt']);
     $this->assertEquals($this->student->id, $result['attempt']['userid']);
     $this->assertEquals($quiz->id, $result['attempt']['quiz']);
     $this->assertCount(0, $result['warnings']);
     $attemptid = $result['attempt']['id'];
     // We are good, try to start a new attempt now.
     try {
         mod_quiz_external::start_attempt($quiz->id, array(array("name" => "quizpassword", "value" => 'abc')));
         $this->fail('Exception expected due to attempt not finished.');
     } catch (moodle_quiz_exception $e) {
         $this->assertEquals('attemptstillinprogress', $e->errorcode);
     }
     // Finish the started attempt.
     // Process some responses from the student.
     $timenow = time();
     $attemptobj = quiz_attempt::create($attemptid);
     $tosubmit = array(1 => array('answer' => '3.14'));
     $attemptobj->process_submitted_actions($timenow, false, $tosubmit);
     // Finish the attempt.
     $attemptobj = quiz_attempt::create($attemptid);
     $this->assertTrue($attemptobj->has_response_to_at_least_one_graded_question());
     $attemptobj->process_finish($timenow, false);
     // We should be able to start a new attempt.
     $result = mod_quiz_external::start_attempt($quiz->id, array(array("name" => "quizpassword", "value" => 'abc')));
     $result = external_api::clean_returnvalue(mod_quiz_external::start_attempt_returns(), $result);
     $this->assertEquals(2, $result['attempt']['attempt']);
     $this->assertEquals($this->student->id, $result['attempt']['userid']);
     $this->assertEquals($quiz->id, $result['attempt']['quiz']);
     $this->assertCount(0, $result['warnings']);
     // Test user with no capabilities.
     // We need a explicit prohibit since this capability is only defined in authenticated user and guest roles.
     assign_capability('mod/quiz:attempt', CAP_PROHIBIT, $this->studentrole->id, $context->id);
     // Empty all the caches that may be affected  by this change.
     accesslib_clear_all_caches_for_unit_testing();
     course_modinfo::clear_instance_cache();
     try {
         mod_quiz_external::start_attempt($quiz->id);
         $this->fail('Exception expected due to missing capability.');
     } catch (required_capability_exception $e) {
         $this->assertEquals('nopermissions', $e->errorcode);
     }
 }

 /**
  * Return the potential question types that would be required for a given quiz.
  * Please note that for random question types we return the potential question types in the category choosen.
  *
  * @param int $quizid quiz instance id
  * @return array of warnings and the access information
  * @since Moodle 3.1
  * @throws  moodle_quiz_exception
  */
 public static function get_quiz_required_qtypes($quizid)
 {
     global $DB, $USER;
     $warnings = array();
     $params = array('quizid' => $quizid);
     $params = self::validate_parameters(self::get_quiz_required_qtypes_parameters(), $params);
     list($quiz, $course, $cm, $context) = self::validate_quiz($params['quizid']);
     $quizobj = quiz::create($cm->instance, $USER->id);
     $quizobj->preload_questions();
     $quizobj->load_questions();
     // Question types used.
     $result = array();
     $result['questiontypes'] = $quizobj->get_all_question_types_used(true);
     $result['warnings'] = $warnings;
     return $result;
 }

 /**
  * Test get_attempt_access_information
  */
 public function test_get_attempt_access_information()
 {
     global $DB;
     // Create a new quiz with attempts.
     $quizgenerator = $this->getDataGenerator()->get_plugin_generator('mod_quiz');
     $data = array('course' => $this->course->id, 'sumgrades' => 2);
     $quiz = $quizgenerator->create_instance($data);
     // Create some questions.
     $questiongenerator = $this->getDataGenerator()->get_plugin_generator('core_question');
     $cat = $questiongenerator->create_question_category();
     $question = $questiongenerator->create_question('numerical', null, array('category' => $cat->id));
     quiz_add_quiz_question($question->id, $quiz);
     $question = $questiongenerator->create_question('shortanswer', null, array('category' => $cat->id));
     quiz_add_quiz_question($question->id, $quiz);
     // Add new question types in the category (for the random one).
     $question = $questiongenerator->create_question('truefalse', null, array('category' => $cat->id));
     $question = $questiongenerator->create_question('essay', null, array('category' => $cat->id));
     $question = $questiongenerator->create_question('random', null, array('category' => $cat->id));
     quiz_add_quiz_question($question->id, $quiz);
     $quizobj = quiz::create($quiz->id, $this->student->id);
     // Set grade to pass.
     $item = grade_item::fetch(array('courseid' => $this->course->id, 'itemtype' => 'mod', 'itemmodule' => 'quiz', 'iteminstance' => $quiz->id, 'outcomeid' => null));
     $item->gradepass = 80;
     $item->update();
     $this->setUser($this->student);
     // Default restrictions (none).
     $result = mod_quiz_external::get_attempt_access_information($quiz->id);
     $result = external_api::clean_returnvalue(mod_quiz_external::get_attempt_access_information_returns(), $result);
     $expected = array('isfinished' => false, 'preventnewattemptreasons' => [], 'warnings' => []);
     $this->assertEquals($expected, $result);
     // Limited attempts.
     $quiz->attempts = 1;
     $DB->update_record('quiz', $quiz);
     // Now, do one attempt.
     $quba = question_engine::make_questions_usage_by_activity('mod_quiz', $quizobj->get_context());
     $quba->set_preferred_behaviour($quizobj->get_quiz()->preferredbehaviour);
     $timenow = time();
     $attempt = quiz_create_attempt($quizobj, 1, false, $timenow, false, $this->student->id);
     quiz_start_new_attempt($quizobj, $quba, $attempt, 1, $timenow);
     quiz_attempt_save_started($quizobj, $quba, $attempt);
     // Process some responses from the student.
     $attemptobj = quiz_attempt::create($attempt->id);
     $tosubmit = array(1 => array('answer' => '3.14'));
     $attemptobj->process_submitted_actions($timenow, false, $tosubmit);
     // Finish the attempt.
     $attemptobj = quiz_attempt::create($attempt->id);
     $this->assertTrue($attemptobj->has_response_to_at_least_one_graded_question());
     $attemptobj->process_finish($timenow, false);
     // Can we start a new attempt? We shall not!
     $result = mod_quiz_external::get_attempt_access_information($quiz->id, $attempt->id);
     $result = external_api::clean_returnvalue(mod_quiz_external::get_attempt_access_information_returns(), $result);
     // Now new attemps allowed.
     $this->assertCount(1, $result['preventnewattemptreasons']);
     $this->assertFalse($result['ispreflightcheckrequired']);
     $this->assertEquals(get_string('nomoreattempts', 'quiz'), $result['preventnewattemptreasons'][0]);
 }

    }
    if (!($cm = get_coursemodule_from_instance("quiz", $quiz->id, $course->id))) {
        print_error('invalidcoursemodule');
    }
}
/// Check login and get context.
require_login($course->id, false, $cm);
$context = get_context_instance(CONTEXT_MODULE, $cm->id);
require_capability('mod/quiz:view', $context);
/// Cache some other capabilities we use several times.
$canattempt = has_capability('mod/quiz:attempt', $context);
$canreviewmine = has_capability('mod/quiz:reviewmyattempts', $context);
$canpreview = has_capability('mod/quiz:preview', $context);
/// Create an object to manage all the other (non-roles) access rules.
$timenow = time();
$accessmanager = new quiz_access_manager(quiz::create($quiz->id, $USER->id), $timenow, has_capability('mod/quiz:ignoretimelimits', $context, NULL, false));
/// If no questions have been set up yet redirect to edit.php
if (!$quiz->questions && has_capability('mod/quiz:manage', $context)) {
    redirect($CFG->wwwroot . '/mod/quiz/edit.php?cmid=' . $cm->id);
}
/// Log this request.
add_to_log($course->id, "quiz", "view", "view.php?id={$cm->id}", $quiz->id, $cm->id);
// Mark module as viewed
$completion = new completion_info($course);
$completion->set_module_viewed($cm);
/// Initialize $PAGE, compute blocks
$PAGE->set_url('/mod/quiz/view.php', array('id' => $cm->id));
$edit = optional_param('edit', -1, PARAM_BOOL);
if ($edit != -1 && $PAGE->user_allowed_editing()) {
    $USER->editing = $edit;
}

 /**
  * Returns a list of quizzes in a provided list of courses,
  * if no list is provided all quizzes that the user can view will be returned.
  *
  * @param array $courseids Array of course ids
  * @return array of quizzes details
  * @since Moodle 3.1
  */
 public static function get_quizzes_by_courses($courseids = array())
 {
     global $USER;
     $warnings = array();
     $returnedquizzes = array();
     $params = array('courseids' => $courseids);
     $params = self::validate_parameters(self::get_quizzes_by_courses_parameters(), $params);
     $mycourses = array();
     if (empty($params['courseids'])) {
         $mycourses = enrol_get_my_courses();
         $params['courseids'] = array_keys($mycourses);
     }
     // Ensure there are courseids to loop through.
     if (!empty($params['courseids'])) {
         list($courses, $warnings) = external_util::validate_courses($params['courseids'], $mycourses);
         // Get the quizzes in this course, this function checks users visibility permissions.
         // We can avoid then additional validate_context calls.
         $quizzes = get_all_instances_in_courses("quiz", $courses);
         foreach ($quizzes as $quiz) {
             $context = context_module::instance($quiz->coursemodule);
             // Update quiz with override information.
             $quiz = quiz_update_effective_access($quiz, $USER->id);
             // Entry to return.
             $quizdetails = array();
             // First, we return information that any user can see in the web interface.
             $quizdetails['id'] = $quiz->id;
             $quizdetails['coursemodule'] = $quiz->coursemodule;
             $quizdetails['course'] = $quiz->course;
             $quizdetails['name'] = external_format_string($quiz->name, $context->id);
             if (has_capability('mod/quiz:view', $context)) {
                 // Format intro.
                 list($quizdetails['intro'], $quizdetails['introformat']) = external_format_text($quiz->intro, $quiz->introformat, $context->id, 'mod_quiz', 'intro', null);
                 $viewablefields = array('timeopen', 'timeclose', 'grademethod', 'section', 'visible', 'groupmode', 'groupingid');
                 $timenow = time();
                 $quizobj = quiz::create($quiz->id, $USER->id);
                 $accessmanager = new quiz_access_manager($quizobj, $timenow, has_capability('mod/quiz:ignoretimelimits', $context, null, false));
                 // Fields the user could see if have access to the quiz.
                 if (!$accessmanager->prevent_access()) {
                     // Some times this function returns just empty.
                     $hasfeedback = quiz_has_feedback($quiz);
                     $quizdetails['hasfeedback'] = !empty($hasfeedback) ? 1 : 0;
                     $quizdetails['hasquestions'] = (int) $quizobj->has_questions();
                     $quizdetails['autosaveperiod'] = get_config('quiz', 'autosaveperiod');
                     $additionalfields = array('timelimit', 'attempts', 'attemptonlast', 'grademethod', 'decimalpoints', 'questiondecimalpoints', 'reviewattempt', 'reviewcorrectness', 'reviewmarks', 'reviewspecificfeedback', 'reviewgeneralfeedback', 'reviewrightanswer', 'reviewoverallfeedback', 'questionsperpage', 'navmethod', 'sumgrades', 'grade', 'browsersecurity', 'delay1', 'delay2', 'showuserpicture', 'showblocks', 'completionattemptsexhausted', 'completionpass', 'overduehandling', 'graceperiod', 'preferredbehaviour', 'canredoquestions');
                     $viewablefields = array_merge($viewablefields, $additionalfields);
                 }
                 // Fields only for managers.
                 if (has_capability('moodle/course:manageactivities', $context)) {
                     $additionalfields = array('shuffleanswers', 'timecreated', 'timemodified', 'password', 'subnet');
                     $viewablefields = array_merge($viewablefields, $additionalfields);
                 }
                 foreach ($viewablefields as $field) {
                     $quizdetails[$field] = $quiz->{$field};
                 }
             }
             $returnedquizzes[] = $quizdetails;
         }
     }
     $result = array();
     $result['quizzes'] = $returnedquizzes;
     $result['warnings'] = $warnings;
     return $result;
 }

}
// Get the users enrolled
$users = emarking_get_enroled_students($course->id);
$pbar = new progress_bar();
$pbar->create();
if ($create) {
    quiz_delete_all_attempts($quiz);
}
$cur = 1;
$total = count($users);
// Insert answers or finish the attempt for each student
foreach ($users as $user) {
    $pbar->update($cur, $total, get_string('processing', 'mod_emarking') . $user->lastname . $user->firstname);
    flush();
    // Get the quiz instance for the specific student
    $quizobj = quiz::create($cm->instance, $user->id);
    // Get all the attempts
    $attempts = quiz_get_user_attempts($quizobj->get_quizid(), $user->id, 'all');
    if ($create) {
        emarking_add_user_attempt($cm, $user);
    } else {
        // For each attempt insert the answers or finish
        foreach ($attempts as $attempt) {
            if ($finish) {
                emarking_finish_user_attempt($attempt->id);
            }
        }
    }
    $cur++;
}
$pbar->update_full(100, get_string('finished', 'mod_emarking'));

        }
    }

/// Check login and get context.
    require_login($course->id, false, $cm);
    $context = get_context_instance(CONTEXT_MODULE, $cm->id);
    require_capability('mod/quiz:view', $context);

/// Cache some other capabilities we use several times.
    $canattempt = has_capability('mod/quiz:attempt', $context);
    $canreviewmine = has_capability('mod/quiz:reviewmyattempts', $context);
    $canpreview = has_capability('mod/quiz:preview', $context);

/// Create an object to manage all the other (non-roles) access rules.
    $timenow = time();
    $accessmanager = new quiz_access_manager(quiz::create($quiz->id, $USER->id), $timenow,
            has_capability('mod/quiz:ignoretimelimits', $context, NULL, false));

/// If no questions have been set up yet redirect to edit.php
    if (!$quiz->questions && has_capability('mod/quiz:manage', $context)) {
        redirect($CFG->wwwroot . '/mod/quiz/edit.php?cmid=' . $cm->id);
    }

/// Log this request.
    add_to_log($course->id, "quiz", "view", "view.php?id=$cm->id", $quiz->id, $cm->id);

/// Initialize $PAGE, compute blocks
    $PAGE->set_url('/mod/quiz/view.php', array('id' => $cm->id));

    $edit = optional_param('edit', -1, PARAM_BOOL);
    if ($edit != -1 && $PAGE->user_allowed_editing()) {

 /**
  * @param $steps PHPUnit_Extensions_Database_DataSet_ITable the step data from the csv file.
  * @return array attempt no as in csv file => the id of the quiz_attempt as stored in the db.
  */
 protected function walkthrough_attempts($steps)
 {
     global $DB;
     $attemptids = array();
     for ($rowno = 0; $rowno < $steps->getRowCount(); $rowno++) {
         $step = $this->explode_dot_separated_keys_to_make_subindexs($steps->getRow($rowno));
         // Find existing user or make a new user to do the quiz.
         $username = array('firstname' => $step['firstname'], 'lastname' => $step['lastname']);
         if (!($user = $DB->get_record('user', $username))) {
             $user = $this->getDataGenerator()->create_user($username);
         }
         if (!isset($attemptids[$step['quizattempt']])) {
             // Start the attempt.
             $quizobj = quiz::create($this->quiz->id, $user->id);
             $quba = question_engine::make_questions_usage_by_activity('mod_quiz', $quizobj->get_context());
             $quba->set_preferred_behaviour($quizobj->get_quiz()->preferredbehaviour);
             $prevattempts = quiz_get_user_attempts($this->quiz->id, $user->id, 'all', true);
             $attemptnumber = count($prevattempts) + 1;
             $timenow = time();
             $attempt = quiz_create_attempt($quizobj, $attemptnumber, false, $timenow, false, $user->id);
             // Select variant and / or random sub question.
             if (!isset($step['variants'])) {
                 $step['variants'] = array();
             }
             if (isset($step['randqs'])) {
                 // Replace 'names' with ids.
                 foreach ($step['randqs'] as $slotno => $randqname) {
                     $step['randqs'][$slotno] = $this->randqids[$slotno][$randqname];
                 }
             } else {
                 $step['randqs'] = array();
             }
             quiz_start_new_attempt($quizobj, $quba, $attempt, $attemptnumber, $timenow, $step['randqs'], $step['variants']);
             quiz_attempt_save_started($quizobj, $quba, $attempt);
             $attemptid = $attemptids[$step['quizattempt']] = $attempt->id;
         } else {
             $attemptid = $attemptids[$step['quizattempt']];
         }
         // Process some responses from the student.
         $attemptobj = quiz_attempt::create($attemptid);
         $attemptobj->process_submitted_actions($timenow, false, $step['responses']);
         // Finish the attempt.
         if (!isset($step['finished']) || $step['finished'] == 1) {
             $attemptobj = quiz_attempt::create($attemptid);
             $attemptobj->process_finish($timenow, false);
         }
     }
     return $attemptids;
 }

 function exportQuestionMedia()
 {
     global $DB, $CFG, $USER, $QUIZ_CACHE, $CFG;
     $cm = get_coursemodule_from_id('quiz', $this->id);
     $context = context_module::instance($cm->id);
     $quiz = $DB->get_record('quiz', array('id' => $cm->instance), '*', MUST_EXIST);
     $quizobj = quiz::create($cm->instance, $USER->id);
     try {
         $quizobj->preload_questions();
         $quizobj->load_questions();
         $qs = $quizobj->get_questions();
         foreach ($qs as $q) {
             $this->extractMedia($q->id, $q->questiontext);
         }
     } catch (moodle_exception $me) {
         return;
     }
 }

function get_employeescore($id,$course,$userid) {

$cm = get_coursemodule_from_instance("quiz", $id, $course);
		$quizobj = quiz::create($cm->instance, $userid);
		$quiz = $quizobj->get_quiz();
		$viewobj = new mod_quiz_view_object();
                $attempts = quiz_get_user_attempts($id, $userid, 'finished', true);
                $lastfinishedattempt = end($attempts);
                $numattempts = count($attempts);
                $viewobj->attempts = $attempts;
                $viewobj->attemptobjs = array();
           foreach ($attempts as $attempt) {
                   $viewobj->attemptobjs[] = new quiz_attempt($attempt, $quiz, $cm, $quiz->course, false);
           }
           /*Function to display attemps and grades */
		   $attemptgrade='';
     foreach ($viewobj->attemptobjs as $attemptobj) {
                $attemptgrade = quiz_rescale_grade($attemptobj->get_sum_marks(), $quiz, false);

					
		
    }
	           return $attemptgrade;

}

 function is_quiz_finished($cmid)
 {
     global $USER, $CFG;
     require_once $CFG->dirroot . '/mod/quiz/locallib.php';
     require_once $CFG->dirroot . '/mod/quiz/lib.php';
     $cm = get_coursemodule_from_id('quiz', $cmid);
     $quizobj = quiz::create($cm->instance, $USER->id);
     $attempts = quiz_get_user_attempts($quizobj->get_quizid(), $USER->id, 'all', true);
     foreach ($attempts as $attempt) {
         if ($attempt && $attempt->state == quiz_attempt::FINISHED && $attempt->sumgrades == 1) {
             return true;
         }
     }
     return false;
 }

/**
 * Obtains the automatic completion state for this quiz on any conditions
 * in quiz settings, such as if all attempts are used or a certain grade is achieved.
 *
 * @param object $course Course
 * @param object $cm Course-module
 * @param int $userid User ID
 * @param bool $type Type of comparison (or/and; can be used as return value if no conditions)
 * @return bool True if completed, false if not. (If no conditions, then return
 *   value depends on comparison type)
 */
function quiz_get_completion_state($course, $cm, $userid, $type)
{
    global $DB;
    global $CFG;
    $quiz = $DB->get_record('quiz', array('id' => $cm->instance), '*', MUST_EXIST);
    if (!$quiz->completionattemptsexhausted && !$quiz->completionpass) {
        return $type;
    }
    // Check if the user has used up all attempts.
    if ($quiz->completionattemptsexhausted) {
        $attempts = quiz_get_user_attempts($quiz->id, $userid, 'finished', true);
        if ($attempts) {
            $lastfinishedattempt = end($attempts);
            $context = context_module::instance($cm->id);
            $quizobj = quiz::create($quiz->id, $userid);
            $accessmanager = new quiz_access_manager($quizobj, time(), has_capability('mod/quiz:ignoretimelimits', $context, $userid, false));
            if ($accessmanager->is_finished(count($attempts), $lastfinishedattempt)) {
                return true;
            }
        }
    }
    // Check for passing grade.
    if ($quiz->completionpass) {
        require_once $CFG->libdir . '/gradelib.php';
        $item = grade_item::fetch(array('courseid' => $course->id, 'itemtype' => 'mod', 'itemmodule' => 'quiz', 'iteminstance' => $cm->instance, 'outcomeid' => null));
        if ($item) {
            $grades = grade_grade::fetch_users_grades($item, array($userid), false);
            if (!empty($grades[$userid])) {
                return $grades[$userid]->is_passed($item);
            }
        }
    }
    return false;
}