PHP question_attempt::get_step_iterator方法代碼示例

 /**
  * Perform a regrade. This replays all the actions from $oldqa into this
  * attempt.
  * @param question_attempt $oldqa the attempt to regrade.
  * @param bool $finished whether the question attempt should be forced to be finished
  *      after the regrade, or whether it may still be in progress (default false).
  */
 public function regrade(question_attempt $oldqa, $finished)
 {
     $first = true;
     foreach ($oldqa->get_step_iterator() as $step) {
         $this->observer->notify_step_deleted($step, $this);
         if ($first) {
             // First step of the attempt.
             $first = false;
             $this->start($oldqa->behaviour, $oldqa->get_variant(), $step->get_all_data(), $step->get_timecreated(), $step->get_user_id(), $step->get_id());
         } else {
             if ($step->has_behaviour_var('finish') && count($step->get_submitted_data()) > 1) {
                 // This case relates to MDL-32062. The upgrade code from 2.0
                 // generates attempts where the final submit of the question
                 // data, and the finish action, are in the same step. The system
                 // cannot cope with that, so convert the single old step into
                 // two new steps.
                 $submitteddata = $step->get_submitted_data();
                 unset($submitteddata['-finish']);
                 $this->process_action($submitteddata, $step->get_timecreated(), $step->get_user_id(), $step->get_id());
                 $this->finish($step->get_timecreated(), $step->get_user_id());
             } else {
                 // This is the normal case. Replay the next step of the attempt.
                 $this->process_action($step->get_submitted_data(), $step->get_timecreated(), $step->get_user_id(), $step->get_id());
             }
         }
     }
     if ($finished) {
         $this->finish();
     }
 }

 /**
  * Store an entire {@link question_attempt} in the database,
  * including all the question_attempt_steps that comprise it.
  * @param question_attempt $qa the question attempt to store.
  * @param context $context the context of the owning question_usage_by_activity.
  */
 public function insert_question_attempt(question_attempt $qa, $context)
 {
     $record = new stdClass();
     $record->questionusageid = $qa->get_usage_id();
     $record->slot = $qa->get_slot();
     $record->behaviour = $qa->get_behaviour_name();
     $record->questionid = $qa->get_question()->id;
     $record->variant = $qa->get_variant();
     $record->maxmark = $qa->get_max_mark();
     $record->minfraction = $qa->get_min_fraction();
     $record->maxfraction = $qa->get_max_fraction();
     $record->flagged = $qa->is_flagged();
     $record->questionsummary = $qa->get_question_summary();
     if (core_text::strlen($record->questionsummary) > question_bank::MAX_SUMMARY_LENGTH) {
         // It seems some people write very long quesions! MDL-30760
         $record->questionsummary = core_text::substr($record->questionsummary, 0, question_bank::MAX_SUMMARY_LENGTH - 3) . '...';
     }
     $record->rightanswer = $qa->get_right_answer_summary();
     $record->responsesummary = $qa->get_response_summary();
     $record->timemodified = time();
     $record->id = $this->db->insert_record('question_attempts', $record);
     $qa->set_database_id($record->id);
     foreach ($qa->get_step_iterator() as $seq => $step) {
         $this->insert_question_attempt_step($step, $record->id, $seq, $context);
     }
 }

 /**
  * Perform a regrade. This replays all the actions from $oldqa into this
  * attempt.
  * @param question_attempt $oldqa the attempt to regrade.
  * @param bool $finished whether the question attempt should be forced to be finished
  *      after the regrade, or whether it may still be in progress (default false).
  */
 public function regrade(question_attempt $oldqa, $finished) {
     $first = true;
     foreach ($oldqa->get_step_iterator() as $step) {
         $this->observer->notify_step_deleted($step, $this);
         if ($first) {
             $first = false;
             $this->start($oldqa->behaviour, $oldqa->get_variant(), $step->get_all_data(),
                     $step->get_timecreated(), $step->get_user_id(), $step->get_id());
         } else {
             $this->process_action($step->get_submitted_data(),
                     $step->get_timecreated(), $step->get_user_id(), $step->get_id());
         }
     }
     if ($finished) {
         $this->finish();
     }
 }

 /**
  * Store an entire {@link question_attempt} in the database,
  * including all the question_attempt_steps that comprise it.
  * @param question_attempt $qa the question attempt to store.
  * @param object $context the context of the owning question_usage_by_activity.
  */
 public function insert_question_attempt(question_attempt $qa, $context)
 {
     $record = new stdClass();
     $record->questionusageid = $qa->get_usage_id();
     $record->slot = $qa->get_slot();
     $record->behaviour = $qa->get_behaviour_name();
     $record->questionid = $qa->get_question()->id;
     $record->variant = $qa->get_variant();
     $record->maxmark = $qa->get_max_mark();
     $record->minfraction = $qa->get_min_fraction();
     $record->flagged = $qa->is_flagged();
     $record->questionsummary = $qa->get_question_summary();
     $record->rightanswer = $qa->get_right_answer_summary();
     $record->responsesummary = $qa->get_response_summary();
     $record->timemodified = time();
     $record->id = $this->db->insert_record('question_attempts', $record);
     foreach ($qa->get_step_iterator() as $seq => $step) {
         $this->insert_question_attempt_step($step, $record->id, $seq, $context);
     }
 }

 /**
  * Store an entire {@link question_attempt} in the database,
  * including all the question_attempt_steps that comprise it.
  *
  * You should not call this method directly. You should use
  * @link question_engine::save_questions_usage_by_activity()}.
  *
  * @param question_attempt $qa the question attempt to store.
  * @param context $context the context of the owning question_usage_by_activity.
  * @return array of question_attempt_step_data rows, that still need to be inserted.
  */
 public function insert_question_attempt(question_attempt $qa, $context)
 {
     $record = new stdClass();
     $record->questionusageid = $qa->get_usage_id();
     $record->slot = $qa->get_slot();
     $record->behaviour = $qa->get_behaviour_name();
     $record->questionid = $qa->get_question()->id;
     $record->variant = $qa->get_variant();
     $record->maxmark = $qa->get_max_mark();
     $record->minfraction = $qa->get_min_fraction();
     $record->maxfraction = $qa->get_max_fraction();
     $record->flagged = $qa->is_flagged();
     $record->questionsummary = $qa->get_question_summary();
     if (core_text::strlen($record->questionsummary) > question_bank::MAX_SUMMARY_LENGTH) {
         // It seems some people write very long quesions! MDL-30760
         $record->questionsummary = core_text::substr($record->questionsummary, 0, question_bank::MAX_SUMMARY_LENGTH - 3) . '...';
     }
     $record->rightanswer = $qa->get_right_answer_summary();
     $record->responsesummary = $qa->get_response_summary();
     $record->timemodified = time();
     $record->id = $this->db->insert_record('question_attempts', $record);
     $qa->set_database_id($record->id);
     // Initially an array of array of question_attempt_step_objects.
     // Built as a nested array for efficiency, then flattened.
     $stepdata = array();
     foreach ($qa->get_step_iterator() as $seq => $step) {
         $stepdata[] = $this->insert_question_attempt_step($step, $record->id, $seq, $context);
     }
     return call_user_func_array('array_merge', $stepdata);
 }