moodle/moodle
3
0
Fork 0
mirror of https://github.com/moodle/moodle.git synced 2025-08-05 08:56:36 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

MDL-20636 Work-in-progress on quiz attempt backup and restore.

Browse source
This commit is contained in:
Tim Hunt 2011-04-28 21:21:43 +01:00
parent d1de533164
commit bea1a6a73a
4 changed files with 71 additions and 104 deletions
Download patch file Download diff file Expand all files Collapse all files

87
backup/moodle2/backup_stepslib.php
View file

@ -174,78 +174,65 @@ abstract class backup_questions_activity_structure_step extends backup_activity_
/**
* Attach to $element (usually attempts) the needed backup structures
* for question_states for a given question_attempt
* for question_usages and all the associated data.
*/
protected function add_question_attempts_states($element, $questionattemptname) {
protected function add_question_usages($element, $usageidname) {
// Check $element is one nested_backup_element
if (! $element instanceof backup_nested_element) {
throw new backup_step_exception('question_states_bad_parent_element', $element);
}
// Check that the $questionattemptname is final element in $element
if (! $element->get_final_element($questionattemptname)) {
throw new backup_step_exception('question_states_bad_question_attempt_element', $questionattemptname);
}
// TODO: Some day we should stop these "encrypted" state->answers and
// TODO: delegate to qtypes plugin to proper XML writting the needed info on each question
$quba = new backup_nested_element('question_usage', array('id'),
array('preferredbehaviour'));
// TODO: Should be doing here some introspection in the "answer" element, based on qtype,
// TODO: to know which real questions are being used (for randoms and other qtypes...)
// TODO: Not needed if consistency is guaranteed, but it isn't right now :-(
$qas = new backup_nested_element('question_attempts');
$qa = new backup_nested_element('question_attempt', array('id'), array(
'slot', 'behaviour', 'questionid', 'maxmark', 'minfraction',
'flagged', 'questionsummary', 'rightanswer', 'responsesummary',
'timemodified'));
// Define the elements
$states = new backup_nested_element('states');
$state = new backup_nested_element('state', array('id'), array(
'question', 'seq_number', 'answer', 'timestamp',
'event', 'grade', 'raw_grade', 'penalty'));
$steps = new backup_nested_element('steps');
$step = new backup_nested_element('step', array('id'), array(
'sequencenumber', 'state', 'fraction', 'timecreated', 'userid'));
$data = new backup_nested_element('data');
$value = new backup_nested_element('value', array('name'),
array('value'));
// Build the tree
$element->add_child($states);
$states->add_child($state);
$element->add_child($quba);
$quba->add_child($qas);
$qas->add_child($qa);
$qa->add_child($steps);
$steps->add_child($step);
$step->add_child($data);
$data->add_child($value);
// Set the sources
$state->set_source_table('question_states', array('attempt' => '../../' . $questionattemptname));
$quba->set_source_table('question_usages',
array('id' => '../../' . $usageidname));
$qa->set_source_table('question_attempts',
array('questionusageid' => backup::VAR_PARENTID));
$step->set_source_table('question_attempt_steps',
array('questionattemptid' => backup::VAR_PARENTID));
$value->set_source_table('question_attempt_step_data',
array('attemptstepid' => backup::VAR_PARENTID));
// Annotate ids
$state->annotate_ids('question', 'question');
}
/**
* Attach to $element (usually attempts) the needed backup structures
* for question_sessions for a given question_attempt
*/
protected function add_question_attempts_sessions($element, $questionattemptname) {
// Check $element is one nested_backup_element
if (! $element instanceof backup_nested_element) {
throw new backup_step_exception('question_sessions_bad_parent_element', $element);
}
// Check that the $questionattemptname is final element in $element
if (! $element->get_final_element($questionattemptname)) {
throw new backup_step_exception('question_sessions_bad_question_attempt_element', $questionattemptname);
}
// Define the elements
$sessions = new backup_nested_element('sessions');
$session = new backup_nested_element('session', array('id'), array(
'questionid', 'newest', 'newgraded', 'sumpenalty',
'manualcomment', 'manualcommentformat', 'flagged'));
// Build the tree
$element->add_child($sessions);
$sessions->add_child($session);
// Set the sources
$session->set_source_table('question_sessions', array('attemptid' => '../../' . $questionattemptname));
// Annotate ids
$session->annotate_ids('question', 'questionid');
$qa->annotate_ids('question', 'questionid');
// Annotate files
// Note: question_sessions haven't files associated. On purpose manualcomment is lacking
// support for them, so we don't need to annotated them here.
$fileareas = question_engine_data_mapper::get_all_response_file_areas();
foreach ($fileareas as $filearea) {
$step->annotate_files('question', $filearea, 'id');
}
}
}
/**
* backup structure step in charge of calculating the categories to be
* included in backup, based in the context being backuped (module/course)