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

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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
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80
backup/moodle2/restore_stepslib.php
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@ -2524,9 +2524,9 @@ abstract class restore_questions_activity_structure_step extends restore_activit
/**
* Attach below $element (usually attempts) the needed restore_path_elements
* to restore question_states
* to restore question_usages and all they contain.
*/
protected function add_question_attempts_states($element, &$paths) {
protected function add_question_usages($element, &$paths) {
// Check $element is restore_path_element
if (! $element instanceof restore_path_element) {
throw new restore_step_exception('element_must_be_restore_path_element', $element);
@ -2535,31 +2535,22 @@ abstract class restore_questions_activity_structure_step extends restore_activit
if (!is_array($paths)) {
throw new restore_step_exception('paths_must_be_array', $paths);
}
$paths[] = new restore_path_element('question_state', $element->get_path() . '/states/state');
$paths[] = new restore_path_element('question_usage',
$element->get_path() . '/question_usage');
$paths[] = new restore_path_element('question_attempt',
$element->get_path() . '/question_usage/question_attempts/question_attempt');
$paths[] = new restore_path_element('question_attempt_step',
$element->get_path() . '/question_usage/question_attempts/question_attempt/steps/step');
$paths[] = new restore_path_element('question_attempt_step_data',
$element->get_path() . '/question_usage/question_attempts/question_attempt/steps/step/data/value');
}
/**
* Attach below $element (usually attempts) the needed restore_path_elements
* to restore question_sessions
* Process question_usages
*/
protected function add_question_attempts_sessions($element, &$paths) {
// Check $element is restore_path_element
if (! $element instanceof restore_path_element) {
throw new restore_step_exception('element_must_be_restore_path_element', $element);
}
// Check $paths is one array
if (!is_array($paths)) {
throw new restore_step_exception('paths_must_be_array', $paths);
}
$paths[] = new restore_path_element('question_session', $element->get_path() . '/sessions/session');
}
/**
* Process question_states
*/
protected function process_question_state($data) {
protected function process_question_usage($data) {
global $DB;
// TODO
$data = (object)$data;
$oldid = $data->id;
@ -2579,11 +2570,11 @@ abstract class restore_questions_activity_structure_step extends restore_activit
}
/**
* Process question_sessions
* Process question_attempts
*/
protected function process_question_session($data) {
protected function process_question_attempt($data) {
global $DB;
// TODO
$data = (object)$data;
$oldid = $data->id;
@ -2601,6 +2592,22 @@ abstract class restore_questions_activity_structure_step extends restore_activit
// support for them, so we don't need to handle them here.
}
/**
* Process question_attempt_steps
*/
protected function process_question_attempt_step($data) {
global $DB;
// TODO
}
/**
* Process question_attempt_step_data
*/
protected function process_question_attempt_step_data($data) {
global $DB;
// TODO
}
/**
* Given a list of question->ids, separated by commas, returns the
* recoded list, with all the restore question mappings applied.
@ -2619,27 +2626,4 @@ abstract class restore_questions_activity_structure_step extends restore_activit
}
return implode(',', $questionids);
}
/**
* Given one question_states record, return the answer
* recoded pointing to all the restored stuff
*/
public function restore_recode_answer($state, $qtype) {
// Build one static cache to store {@link restore_qtype_plugin}
// while we are needing them, just to save zillions of instantiations
// or using static stuff that will break our nice API
static $qtypeplugins = array();
// If we haven't the corresponding restore_qtype_plugin for current qtype
// instantiate it and add to cache
if (!isset($qtypeplugins[$qtype])) {
$classname = 'restore_qtype_' . $qtype . '_plugin';
if (class_exists($classname)) {
$qtypeplugins[$qtype] = new $classname('qtype', $qtype, $this);
} else {
$qtypeplugins[$qtype] = false;
}
}
return !empty($qtypeplugins[$qtype]) ? $qtypeplugins[$qtype]->recode_state_answer($state) : $state->answer;
}
}