Questionnaire__deletion_area_(Recycle_bin)_for_deleted_orphaned_questions

Author: tai.letan

backup/moodle2/restore_questionnaire_stepslib.php

@@ -163,7 +163,10 @@ protected function process_questionnaire_question($data) {
         $data = (object)$data;
         $oldid = $data->id;
         $data->surveyid = $this->get_new_parentid('questionnaire_survey');
-
+        // Cover for legacy backup data.
+        if ($data->deleted === 'n') {
+            $data->deleted = null;
+        }
         // Insert the questionnaire_question record.
         $newitemid = $DB->insert_record('questionnaire_question', $data);
         $this->set_mapping('questionnaire_question', $oldid, $newitemid, true);

classes/question/question.php

@@ -103,8 +103,8 @@ abstract class question {
     /** @var boolean $required The required flag. */
     public $required = 'n';
 
-    /** @var boolean $deleted The deleted flag. */
-    public $deleted = 'n';
+    /** @var int $deleted The deleted flag. */
+    public $deleted = null;
 
     /** @var mixed $extradata Any custom data for the question type. */
     public $extradata = '';
@@ -598,7 +598,7 @@ public function response_complete($responsedata) {
             // If $responsedata is webform data, check that its not empty.
             $answered = isset($responsedata->{'q'.$this->id}) && ($responsedata->{'q'.$this->id} != '');
         }
-        return !($this->required() && ($this->deleted == 'n') && !$answered);
+        return !($this->required() && (empty($this->deleted)) && !$answered);
     }
 
     /**
@@ -663,8 +663,8 @@ public function add($questionrecord, array $choicerecords = null, $calcposition
             // Set the position to the end.
             $sql = 'SELECT MAX(position) as maxpos '.
                    'FROM {questionnaire_question} '.
-                   'WHERE surveyid = ? AND deleted = ?';
-            $params = ['surveyid' => $questionrecord->surveyid, 'deleted' => 'n'];
+                   'WHERE surveyid = ? AND deleted IS NULL';
+            $params = ['surveyid' => $questionrecord->surveyid];
             if ($record = $DB->get_record_sql($sql, $params)) {
                 $questionrecord->position = $record->maxpos + 1;
             } else {

classes/questions_form.php

@@ -50,6 +50,7 @@ public function definition() {
 
         $sid = $questionnaire->survey->id;
         $mform    =& $this->_form;
+        $qidrestore = optional_param(QUESTIONNAIRE_RESTORE_PARAM, 0, PARAM_INT);
 
         $mform->addElement('header', 'questionhdr', get_string('addquestions', 'questionnaire'));
         $mform->addHelpButton('questionhdr', 'questiontypes', 'questionnaire');
@@ -138,7 +139,7 @@ public function definition() {
 
             // No page break in first position!
             if ($tid == QUESPAGEBREAK && $pos == 1) {
-                $DB->set_field('questionnaire_question', 'deleted', 'y', ['id' => $qid, 'surveyid' => $sid]);
+                $DB->set_field('questionnaire_question', 'deleted', time(), ['id' => $qid, 'surveyid' => $sid]);
                 if ($records = $DB->get_records_select('questionnaire_question', $select, null, 'position ASC')) {
                     foreach ($records as $record) {
                         $DB->set_field('questionnaire_question', 'position', $record->position - 1, array('id' => $record->id));
@@ -172,7 +173,12 @@ public function definition() {
                     // Begin div qn-container with indent if questionnaire has child.
                     $mform->addElement('html', '<div class="qn-container qn-indent">');
                 } else {
-                    $mform->addElement('html', '<div class="qn-container">'); // Begin div qn-container.
+                    $containerclass = "qn-container";
+                    if (isset($qidrestore) && $qidrestore == $question->id) {
+                        $containerclass .= " restored-question";
+                    }
+                    // Begin div qn-container.
+                    $mform->addElement('html', "<div class='$containerclass'>");
                 }
 
                 $mextra = array('value' => $question->id,
@@ -220,14 +226,15 @@ public function definition() {
                     // Do not allow moving or deleting a page break if immediately followed by a child question
                     // or immediately preceded by a question with a dependency and followed by a non-dependent question.
                     if ($tid == QUESPAGEBREAK) {
-                        if ($nextquestion = $DB->get_record('questionnaire_question',
-                            ['surveyid' => $sid, 'position' => $pos + 1, 'deleted' => 'n'], 'id, name, content') ) {
-
+                        $select = 'surveyid = ? AND position = ? AND deleted IS NULL';
+                        $nextquestion = $DB->get_record_select('questionnaire_question', $select,
+                            [$sid, $pos + 1], 'id, name, content');
+                        if ($nextquestion) {
                             $nextquestiondependencies = $DB->get_records('questionnaire_dependency',
                                 ['questionid' => $nextquestion->id , 'surveyid' => $sid], 'id ASC');
 
-                            if ($previousquestion = $DB->get_record('questionnaire_question',
-                                ['surveyid' => $sid, 'position' => $pos - 1, 'deleted' => 'n'], 'id, name, content')) {
+                            if ($previousquestion = $DB->get_record_select('questionnaire_question', $select,
+                                [$sid, $pos - 1], 'id, name, content')) {
 
                                 $previousquestiondependencies = $DB->get_records('questionnaire_dependency',
                                     ['questionid' => $previousquestion->id , 'surveyid' => $sid], 'id ASC');
@@ -359,6 +366,66 @@ public function definition() {
             }
         }
 
+        // Question deletion area.
+        $mform->addElement('header', 'deletionq', get_string('deletionquetions', 'questionnaire'));
+        $mform->addHelpButton('deletionq', 'deletionquetions', 'questionnaire');
+        $mform->addElement('html', '<div class="qcontainer">');
+        if (isset($questionnaire->deletequestions)) {
+            $restoreimg = $questionnaire->renderer->image_url('i/up');
+            $deleteimg = $questionnaire->renderer->image_url('t/delete');
+            $rangetimecrontask = questionnaire_get_range_time_permanently();
+            foreach ($questionnaire->deletequestions as $deletequestion) {
+                $delquestiongroup = [];
+                // Preparing deleted time to display time permanently question.
+                $timedeleted = $deletequestion->deleted ?? "";
+                if ($rangetimecrontask == 0) {
+                    $timedeleted = get_string('recylebindisabled', 'questionnaire');
+                } else {
+                    if (!empty($timedeleted)) {
+                        $timedeleted = get_string('timedeletednext7days', 'questionnaire',
+                            date("D j M, Y", $timedeleted + $rangetimecrontask));
+                    }
+                }
+                $qtypeandname = [];
+                $qtypeandname['name'] = $deletequestion->name;
+                $qtypeandname['type'] = questionnaire_get_type($deletequestion->type_id);
+
+                $content = format_text(
+                    file_rewrite_pluginfile_urls($deletequestion->content, 'pluginfile.php',
+                    $deletequestion->context->id,
+                    'mod_questionnaire', 'question', $deletequestion->id),
+                    FORMAT_HTML, ['noclean' => true]
+                );
+
+                $qnumber = '<div class="qn-info"><h2 class="qn-number">NA</h2></div>';
+                $restorextra = [
+                    'value' => $deletequestion->id,
+                    'alt' => get_string('restorebutton', 'questionnaire'),
+                    'title' => get_string('restorebutton', 'questionnaire'),
+                ];
+                $deleleextra = [
+                    'value' => $deletequestion->id,
+                    'alt' => get_string('deletepermanentlybutton', 'questionnaire'),
+                    'title' => get_string('deletepermanentlybutton', 'questionnaire')
+                ];
+                $mform->addElement('html', '<div class="qn-container">'); // Begin div qn-container.
+                $delquestiongroup[] =& $mform->createElement('static', 'opentag_' . $deletequestion->id, '', '');
+                $delquestiongroup[] =& $mform->createElement('image', 'restorebutton[' . $deletequestion->id . ']',
+                    $restoreimg, $restorextra);
+                $delquestiongroup[] =& $mform->createElement('image', 'deletebutton[' . $deletequestion->id . ']',
+                    $deleteimg, $deleleextra);
+                $delquestiongroup[] =& $mform->createElement('static', 'closetag_' . $deletequestion->id, '', '');
+                $delquestiongroup[] =& $mform->createElement('static', 'qinfo_' . $deletequestion->id, '',
+                    get_string('questiontypeandname', 'questionnaire', $qtypeandname));
+                $delquestiongroup[] =& $mform->createElement('static', 'qinfo_' . $deletequestion->id,
+                        '', $timedeleted);
+                $mform->addGroup($delquestiongroup, 'delquestiongroup', '', '&nbsp;', false);
+                $mform->addElement('static', 'qcontent_'.$deletequestion->id, '',
+                    $qnumber.'<div class="qn-question">'.$content.'</div>');
+                $mform->addElement('html', '</div>'); // End div qn-container.
+            }
+        }
+
         if ($this->moveq) {
             $mform->addElement('hidden', 'moveq', $this->moveq);
         }
@@ -373,6 +440,9 @@ public function definition() {
         $mform->setType('moveq', PARAM_RAW);
 
         $mform->addElement('html', '</div>');
+        $mform->setExpanded('questionhdr');
+        $mform->setExpanded('manageq');
+        $mform->setExpanded('deletionq');
     }
 
     /**

classes/search/question.php

@@ -74,8 +74,8 @@ public function get_document($record, $options = []) {
 
         // Because there is no database agnostic way to combine all of the possible question content data into one record in
         // get_recordset_by_timestamp, I need to grab it all now and add it to the document.
-        $recordset = $DB->get_recordset('questionnaire_question', ['surveyid' => $record->sid, 'deleted' => 'n'],
-            'id', 'id,content');
+        $recordset = $DB->get_recordset_select('questionnaire_question',
+            'surveyid = ? AND deleted IS NULL', [$record->sid], 'id', 'id,content');
 
         // If no question data, don't index this document.
         if (empty($recordset)) {

classes/task/cron_task.php

@@ -0,0 +1,54 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+namespace mod_questionnaire\task;
+defined('MOODLE_INTERNAL') || die();
+
+require_once($CFG->dirroot.'/mod/questionnaire/questionnaire.class.php');
+/**
+ * A schedule task for mod_questionnaire cron.
+ *
+ * @package   mod_questionnaire
+ * @copyright 2022 The Open University
+ * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class cron_task extends \core\task\scheduled_task {
+    /**
+     * Get a descriptive name for this task (shown to admins).
+     *
+     * @return string
+     */
+    public function get_name() {
+        return get_string('cleanrecylebin', 'mod_questionnaire');
+    }
+
+    /**
+     * Run mod_questionnaire cron.
+     */
+    public function execute() {
+        global $DB;
+        $rangetimecrontask = questionnaire_get_range_time_permanently();
+        $sql = "SELECT *
+                  FROM {questionnaire_question}
+                 WHERE deleted IS NOT NULL
+                   AND deleted < ?";
+        if ($deletequestions = $DB->get_records_sql($sql, [time() - $rangetimecrontask])) {
+            foreach ($deletequestions as $question) {
+                questionnaire_delete_permanently_questions($question->id, $question->surveyid);
+            }
+        }
+    }
+}

db/install.xml

@@ -77,7 +77,7 @@
         <FIELD NAME="position" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
         <FIELD NAME="content" TYPE="text" NOTNULL="true" SEQUENCE="false"/>
         <FIELD NAME="required" TYPE="char" LENGTH="1" NOTNULL="true" DEFAULT="n" SEQUENCE="false"/>
-        <FIELD NAME="deleted" TYPE="char" LENGTH="1" NOTNULL="true" DEFAULT="n" SEQUENCE="false"/>
+        <FIELD NAME="deleted" TYPE="int" LENGTH="10" NOTNULL="false" SEQUENCE="false" COMMENT="The timestamp record last deleted."/>
         <FIELD NAME="extradata" TYPE="text" NOTNULL="false" SEQUENCE="false" COMMENT="If a question needs more than the standard fields provided, use this field."/>
       </FIELDS>
       <KEYS>

db/tasks.php

@@ -36,5 +36,14 @@
         'day' => '*',
         'month' => '*',
         'dayofweek' => '*'
-    )
+    ),
+    [
+        'classname' => 'mod_questionnaire\task\cron_task',
+        'blocking' => 0,
+        'minute' => '*',
+        'hour' => '*',
+        'day' => '*/7',
+        'month' => '*',
+        'dayofweek' => '*'
+    ],
 );

db/upgrade.php

@@ -1016,6 +1016,35 @@ function xmldb_questionnaire_upgrade($oldversion=0) {
         upgrade_mod_savepoint(true, 2022121601.01, 'questionnaire');
     }
 
+    if ($oldversion < 2022121601.02) {
+        $table = new xmldb_table('questionnaire_question');
+        $index = new xmldb_index('quest_question_sididx', XMLDB_INDEX_NOTUNIQUE, ['surveyid', 'deleted']);
+        if ($dbman->index_exists($table, $index)) {
+            $dbman->drop_index($table, $index);
+        }
+        $field = new xmldb_field('deleted', XMLDB_TYPE_CHAR, '10', XMLDB_UNSIGNED, null, null, null, 'required');
+        if ($dbman->field_exists($table, $field)) {
+            $dbman->change_field_type($table, $field);
+        }
+        unset($field);
+
+        $field = new xmldb_field('deleted', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, 'required');
+        if ($dbman->field_exists($table, $field)) {
+            $sql = "UPDATE {questionnaire_question}
+                       SET deleted = ?
+                     WHERE deleted = 'y'";
+            $DB->execute($sql, [time()]);
+            $sql = "UPDATE {questionnaire_question}
+                       SET deleted = null
+                     WHERE deleted = 'n'";
+            $DB->execute($sql);
+            $dbman->change_field_type($table, $field);
+        }
+        unset($field);
+        // Questionnaire savepoint reached.
+        upgrade_mod_savepoint(true, 2022121601.02, 'questionnaire');
+    }
+
     return true;
 }