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975 lines
39 KiB
975 lines
39 KiB
<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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namespace core_question\bank;
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/**
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* Functions used to show question editing interface
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*
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* @package moodlecore
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* @subpackage questionbank
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* @copyright 1999 onwards Martin Dougiamas and others {@link http://moodle.com}
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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/**
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* This class prints a view of the question bank, including
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* + Some controls to allow users to to select what is displayed.
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* + A list of questions as a table.
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* + Further controls to do things with the questions.
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*
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* This class gives a basic view, and provides plenty of hooks where subclasses
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* can override parts of the display.
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*
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* The list of questions presented as a table is generated by creating a list of
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* core_question\bank\column objects, one for each 'column' to be displayed. These
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* manage
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* + outputting the contents of that column, given a $question object, but also
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* + generating the right fragments of SQL to ensure the necessary data is present,
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* and sorted in the right order.
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* + outputting table headers.
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*
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* @copyright 2009 Tim Hunt
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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class view {
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const MAX_SORTS = 3;
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protected $baseurl;
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protected $editquestionurl;
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protected $quizorcourseid;
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protected $contexts;
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protected $cm;
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protected $course;
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protected $visiblecolumns;
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protected $extrarows;
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protected $requiredcolumns;
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protected $sort;
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protected $lastchangedid;
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protected $countsql;
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protected $loadsql;
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protected $sqlparams;
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/** @var array of \core_question\bank\search\condition objects. */
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protected $searchconditions = array();
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/**
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* Constructor
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* @param \question_edit_contexts $contexts
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* @param \moodle_url $pageurl
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* @param object $course course settings
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* @param object $cm (optional) activity settings.
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*/
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public function __construct($contexts, $pageurl, $course, $cm = null) {
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global $CFG, $PAGE;
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$this->contexts = $contexts;
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$this->baseurl = $pageurl;
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$this->course = $course;
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$this->cm = $cm;
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if (!empty($cm) && $cm->modname == 'quiz') {
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$this->quizorcourseid = '&quizid=' . $cm->instance;
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} else {
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$this->quizorcourseid = '&courseid=' .$this->course->id;
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}
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// Create the url of the new question page to forward to.
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$returnurl = $pageurl->out_as_local_url(false);
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$this->editquestionurl = new \moodle_url('/question/question.php',
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array('returnurl' => $returnurl));
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if ($cm !== null) {
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$this->editquestionurl->param('cmid', $cm->id);
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} else {
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$this->editquestionurl->param('courseid', $this->course->id);
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}
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$this->lastchangedid = optional_param('lastchanged', 0, PARAM_INT);
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$this->init_columns($this->wanted_columns(), $this->heading_column());
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$this->init_sort();
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$this->init_search_conditions($this->contexts, $this->course, $this->cm);
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}
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/**
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* Initialize search conditions from plugins
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* local_*_get_question_bank_search_conditions() must return an array of
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* \core_question\bank\search\condition objects.
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*/
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protected function init_search_conditions() {
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$searchplugins = get_plugin_list_with_function('local', 'get_question_bank_search_conditions');
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foreach ($searchplugins as $component => $function) {
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foreach ($function($this) as $searchobject) {
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$this->add_searchcondition($searchobject);
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}
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}
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}
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protected function wanted_columns() {
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global $CFG;
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if (empty($CFG->questionbankcolumns)) {
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$questionbankcolumns = array('checkbox_column', 'question_type_column',
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'question_name_column', 'tags_action_column', 'edit_action_column',
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'copy_action_column', 'preview_action_column', 'delete_action_column',
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'creator_name_column', 'modifier_name_column');
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} else {
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$questionbankcolumns = explode(',', $CFG->questionbankcolumns);
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}
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if (question_get_display_preference('qbshowtext', 0, PARAM_BOOL, new \moodle_url(''))) {
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$questionbankcolumns[] = 'question_text_row';
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}
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foreach ($questionbankcolumns as $fullname) {
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if (! class_exists($fullname)) {
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if (class_exists('core_question\\bank\\' . $fullname)) {
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$fullname = 'core_question\\bank\\' . $fullname;
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} else {
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throw new \coding_exception("No such class exists: $fullname");
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}
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}
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$this->requiredcolumns[$fullname] = new $fullname($this);
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}
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return $this->requiredcolumns;
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}
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/**
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* Get a column object from its name.
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*
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* @param string $columnname.
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* @return \core_question\bank\column_base.
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*/
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protected function get_column_type($columnname) {
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if (! class_exists($columnname)) {
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if (class_exists('core_question\\bank\\' . $columnname)) {
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$columnname = 'core_question\\bank\\' . $columnname;
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} else {
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throw new \coding_exception("No such class exists: $columnname");
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}
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}
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if (empty($this->requiredcolumns[$columnname])) {
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$this->requiredcolumns[$columnname] = new $columnname($this);
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}
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return $this->requiredcolumns[$columnname];
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}
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/**
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* Specify the column heading
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*
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* @return string Column name for the heading
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*/
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protected function heading_column() {
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return 'question_bank_question_name_column';
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}
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/**
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* Initializing table columns
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*
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* @param array $wanted Collection of column names
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* @param string $heading The name of column that is set as heading
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*/
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protected function init_columns($wanted, $heading = '') {
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$this->visiblecolumns = array();
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$this->extrarows = array();
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foreach ($wanted as $column) {
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if ($column->is_extra_row()) {
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$this->extrarows[get_class($column)] = $column;
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} else {
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$this->visiblecolumns[get_class($column)] = $column;
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}
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}
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if (array_key_exists($heading, $this->requiredcolumns)) {
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$this->requiredcolumns[$heading]->set_as_heading();
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}
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}
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/**
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* @param string $colname a column internal name.
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* @return bool is this column included in the output?
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*/
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public function has_column($colname) {
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return isset($this->visiblecolumns[$colname]);
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}
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/**
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* @return int The number of columns in the table.
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*/
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public function get_column_count() {
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return count($this->visiblecolumns);
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}
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public function get_courseid() {
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return $this->course->id;
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}
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protected function init_sort() {
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$this->init_sort_from_params();
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if (empty($this->sort)) {
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$this->sort = $this->default_sort();
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}
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}
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/**
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* Deal with a sort name of the form columnname, or colname_subsort by
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* breaking it up, validating the bits that are presend, and returning them.
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* If there is no subsort, then $subsort is returned as ''.
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* @return array array($colname, $subsort).
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*/
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protected function parse_subsort($sort) {
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// Do the parsing.
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if (strpos($sort, '-') !== false) {
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list($colname, $subsort) = explode('-', $sort, 2);
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} else {
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$colname = $sort;
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$subsort = '';
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}
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// Validate the column name.
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$column = $this->get_column_type($colname);
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if (!isset($column) || !$column->is_sortable()) {
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for ($i = 1; $i <= self::MAX_SORTS; $i++) {
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$this->baseurl->remove_params('qbs' . $i);
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}
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throw new \moodle_exception('unknownsortcolumn', '', $link = $this->baseurl->out(), $colname);
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}
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// Validate the subsort, if present.
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if ($subsort) {
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$subsorts = $column->is_sortable();
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if (!is_array($subsorts) || !isset($subsorts[$subsort])) {
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throw new \moodle_exception('unknownsortcolumn', '', $link = $this->baseurl->out(), $sort);
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}
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}
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return array($colname, $subsort);
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}
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protected function init_sort_from_params() {
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$this->sort = array();
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for ($i = 1; $i <= self::MAX_SORTS; $i++) {
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if (!$sort = optional_param('qbs' . $i, '', PARAM_TEXT)) {
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break;
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}
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// Work out the appropriate order.
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$order = 1;
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if ($sort[0] == '-') {
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$order = -1;
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$sort = substr($sort, 1);
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if (!$sort) {
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break;
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}
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}
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// Deal with subsorts.
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list($colname, $subsort) = $this->parse_subsort($sort);
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$this->requiredcolumns[$colname] = $this->get_column_type($colname);
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$this->sort[$sort] = $order;
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}
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}
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protected function sort_to_params($sorts) {
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$params = array();
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$i = 0;
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foreach ($sorts as $sort => $order) {
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$i += 1;
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if ($order < 0) {
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$sort = '-' . $sort;
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}
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$params['qbs' . $i] = $sort;
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}
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return $params;
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}
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protected function default_sort() {
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return array('core_question\bank\question_type_column' => 1, 'core_question\bank\question_name_column' => 1);
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}
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/**
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* @param $sort a column or column_subsort name.
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* @return int the current sort order for this column -1, 0, 1
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*/
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public function get_primary_sort_order($sort) {
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$order = reset($this->sort);
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$primarysort = key($this->sort);
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if ($sort == $primarysort) {
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return $order;
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} else {
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return 0;
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}
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}
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/**
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* Get a URL to redisplay the page with a new sort for the question bank.
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* @param string $sort the column, or column_subsort to sort on.
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* @param bool $newsortreverse whether to sort in reverse order.
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* @return string The new URL.
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*/
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public function new_sort_url($sort, $newsortreverse) {
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if ($newsortreverse) {
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$order = -1;
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} else {
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$order = 1;
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}
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// Tricky code to add the new sort at the start, removing it from where it was before, if it was present.
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$newsort = array_reverse($this->sort);
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if (isset($newsort[$sort])) {
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unset($newsort[$sort]);
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}
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$newsort[$sort] = $order;
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$newsort = array_reverse($newsort);
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if (count($newsort) > self::MAX_SORTS) {
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$newsort = array_slice($newsort, 0, self::MAX_SORTS, true);
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}
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return $this->baseurl->out(true, $this->sort_to_params($newsort));
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}
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/**
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* Create the SQL query to retrieve the indicated questions
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* @param stdClass $category no longer used.
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* @param bool $recurse no longer used.
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* @param bool $showhidden no longer used.
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* @deprecated since Moodle 2.7 MDL-40313.
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* @see build_query()
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* @see \core_question\bank\search\condition
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* @todo MDL-41978 This will be deleted in Moodle 2.8
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*/
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protected function build_query_sql($category, $recurse, $showhidden) {
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debugging('build_query_sql() is deprecated, please use \core_question\bank\view::build_query() and ' .
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'\core_question\bank\search\condition classes instead.', DEBUG_DEVELOPER);
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self::build_query();
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}
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/**
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* Create the SQL query to retrieve the indicated questions, based on
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* \core_question\bank\search\condition filters.
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*/
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protected function build_query() {
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global $DB;
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// Get the required tables and fields.
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$joins = array();
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$fields = array('q.hidden', 'q.category');
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foreach ($this->requiredcolumns as $column) {
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$extrajoins = $column->get_extra_joins();
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foreach ($extrajoins as $prefix => $join) {
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if (isset($joins[$prefix]) && $joins[$prefix] != $join) {
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throw new \coding_exception('Join ' . $join . ' conflicts with previous join ' . $joins[$prefix]);
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}
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$joins[$prefix] = $join;
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}
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$fields = array_merge($fields, $column->get_required_fields());
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}
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$fields = array_unique($fields);
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// Build the order by clause.
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$sorts = array();
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foreach ($this->sort as $sort => $order) {
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list($colname, $subsort) = $this->parse_subsort($sort);
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$sorts[] = $this->requiredcolumns[$colname]->sort_expression($order < 0, $subsort);
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}
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// Build the where clause.
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$tests = array('q.parent = 0');
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$this->sqlparams = array();
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foreach ($this->searchconditions as $searchcondition) {
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if ($searchcondition->where()) {
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$tests[] = '((' . $searchcondition->where() .'))';
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}
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if ($searchcondition->params()) {
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$this->sqlparams = array_merge($this->sqlparams, $searchcondition->params());
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}
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}
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// Build the SQL.
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$sql = ' FROM {question} q ' . implode(' ', $joins);
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$sql .= ' WHERE ' . implode(' AND ', $tests);
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$this->countsql = 'SELECT count(1)' . $sql;
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$this->loadsql = 'SELECT ' . implode(', ', $fields) . $sql . ' ORDER BY ' . implode(', ', $sorts);
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}
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protected function get_question_count() {
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global $DB;
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return $DB->count_records_sql($this->countsql, $this->sqlparams);
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}
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protected function load_page_questions($page, $perpage) {
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global $DB;
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$questions = $DB->get_recordset_sql($this->loadsql, $this->sqlparams, $page * $perpage, $perpage);
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if (!$questions->valid()) {
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// No questions on this page. Reset to page 0.
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$questions->close();
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$questions = $DB->get_recordset_sql($this->loadsql, $this->sqlparams, 0, $perpage);
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}
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return $questions;
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}
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public function base_url() {
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return $this->baseurl;
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}
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public function edit_question_url($questionid) {
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return $this->editquestionurl->out(true, array('id' => $questionid));
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}
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/**
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* Get the URL for duplicating a given question.
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* @param int $questionid the question id.
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* @return moodle_url the URL.
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*/
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public function copy_question_url($questionid) {
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return $this->editquestionurl->out(true, array('id' => $questionid, 'makecopy' => 1));
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}
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/**
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* Get the context we are displaying the question bank for.
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* @return context context object.
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*/
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public function get_most_specific_context() {
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return $this->contexts->lowest();
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}
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/**
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* Get the URL to preview a question.
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* @param stdClass $questiondata the data defining the question.
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* @return moodle_url the URL.
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*/
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public function preview_question_url($questiondata) {
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return question_preview_url($questiondata->id, null, null, null, null,
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$this->get_most_specific_context());
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}
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/**
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* Shows the question bank editing interface.
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*
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* The function also processes a number of actions:
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*
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* Actions affecting the question pool:
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* move Moves a question to a different category
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* deleteselected Deletes the selected questions from the category
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* Other actions:
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* category Chooses the category
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* displayoptions Sets display options
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*/
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public function display($tabname, $page, $perpage, $cat,
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$recurse, $showhidden, $showquestiontext, $tagids = []) {
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global $PAGE, $CFG;
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if ($this->process_actions_needing_ui()) {
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return;
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}
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$editcontexts = $this->contexts->having_one_edit_tab_cap($tabname);
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list($categoryid, $contextid) = explode(',', $cat);
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$catcontext = \context::instance_by_id($contextid);
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$thiscontext = $this->get_most_specific_context();
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// Category selection form.
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$this->display_question_bank_header();
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// Display tag filter if usetags setting is enabled.
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if ($CFG->usetags) {
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array_unshift($this->searchconditions,
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new \core_question\bank\search\tag_condition([$catcontext, $thiscontext], $tagids));
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$PAGE->requires->js_call_amd('core_question/edit_tags', 'init', ['#questionscontainer']);
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}
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array_unshift($this->searchconditions, new \core_question\bank\search\hidden_condition(!$showhidden));
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array_unshift($this->searchconditions, new \core_question\bank\search\category_condition(
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$cat, $recurse, $editcontexts, $this->baseurl, $this->course));
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$this->display_options_form($showquestiontext);
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// Continues with list of questions.
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$this->display_question_list($editcontexts,
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$this->baseurl, $cat, $this->cm,
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null, $page, $perpage, $showhidden, $showquestiontext,
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$this->contexts->having_cap('moodle/question:add'));
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}
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protected function print_choose_category_message($categoryandcontext) {
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echo "<p style=\"text-align:center;\"><b>";
|
|
print_string('selectcategoryabove', 'question');
|
|
echo "</b></p>";
|
|
}
|
|
|
|
protected function get_current_category($categoryandcontext) {
|
|
global $DB, $OUTPUT;
|
|
list($categoryid, $contextid) = explode(',', $categoryandcontext);
|
|
if (!$categoryid) {
|
|
$this->print_choose_category_message($categoryandcontext);
|
|
return false;
|
|
}
|
|
|
|
if (!$category = $DB->get_record('question_categories',
|
|
array('id' => $categoryid, 'contextid' => $contextid))) {
|
|
echo $OUTPUT->box_start('generalbox questionbank');
|
|
echo $OUTPUT->notification('Category not found!');
|
|
echo $OUTPUT->box_end();
|
|
return false;
|
|
}
|
|
|
|
return $category;
|
|
}
|
|
|
|
/**
|
|
* prints category information
|
|
* @param stdClass $category the category row from the database.
|
|
* @deprecated since Moodle 2.7 MDL-40313.
|
|
* @see \core_question\bank\search\condition
|
|
* @todo MDL-41978 This will be deleted in Moodle 2.8
|
|
*/
|
|
protected function print_category_info($category) {
|
|
$formatoptions = new \stdClass();
|
|
$formatoptions->noclean = true;
|
|
$formatoptions->overflowdiv = true;
|
|
echo '<div class="boxaligncenter">';
|
|
echo format_text($category->info, $category->infoformat, $formatoptions, $this->course->id);
|
|
echo "</div>\n";
|
|
}
|
|
|
|
/**
|
|
* Prints a form to choose categories
|
|
* @deprecated since Moodle 2.7 MDL-40313.
|
|
* @see \core_question\bank\search\condition
|
|
* @todo MDL-41978 This will be deleted in Moodle 2.8
|
|
*/
|
|
protected function display_category_form($contexts, $pageurl, $current) {
|
|
global $OUTPUT;
|
|
|
|
debugging('display_category_form() is deprecated, please use ' .
|
|
'\core_question\bank\search\condition instead.', DEBUG_DEVELOPER);
|
|
// Get all the existing categories now.
|
|
echo '<div class="choosecategory">';
|
|
$catmenu = question_category_options($contexts, false, 0, true);
|
|
|
|
$select = new \single_select($this->baseurl, 'category', $catmenu, $current, null, 'catmenu');
|
|
$select->set_label(get_string('selectacategory', 'question'));
|
|
echo $OUTPUT->render($select);
|
|
echo "</div>\n";
|
|
}
|
|
|
|
/**
|
|
* Display the options form.
|
|
* @param bool $recurse no longer used.
|
|
* @param bool $showhidden no longer used.
|
|
* @param bool $showquestiontext whether to show the question text.
|
|
* @deprecated since Moodle 2.7 MDL-40313.
|
|
* @see display_options_form
|
|
* @todo MDL-41978 This will be deleted in Moodle 2.8
|
|
* @see \core_question\bank\search\condition
|
|
*/
|
|
protected function display_options($recurse, $showhidden, $showquestiontext) {
|
|
debugging('display_options() is deprecated, please use display_options_form instead.', DEBUG_DEVELOPER);
|
|
return $this->display_options_form($showquestiontext);
|
|
}
|
|
|
|
/**
|
|
* Print a single option checkbox.
|
|
* @deprecated since Moodle 2.7 MDL-40313.
|
|
* @see \core_question\bank\search\condition
|
|
* @see html_writer::checkbox
|
|
* @todo MDL-41978 This will be deleted in Moodle 2.8
|
|
*/
|
|
protected function display_category_form_checkbox($name, $value, $label) {
|
|
debugging('display_category_form_checkbox() is deprecated, ' .
|
|
'please use \core_question\bank\search\condition instead.', DEBUG_DEVELOPER);
|
|
echo '<div><input type="hidden" id="' . $name . '_off" name="' . $name . '" value="0" />';
|
|
echo '<input type="checkbox" id="' . $name . '_on" name="' . $name . '" value="1"';
|
|
if ($value) {
|
|
echo ' checked="checked"';
|
|
}
|
|
echo ' onchange="getElementById(\'displayoptions\').submit(); return true;" />';
|
|
echo '<label for="' . $name . '_on">' . $label . '</label>';
|
|
echo "</div>\n";
|
|
}
|
|
|
|
/**
|
|
* Display the form with options for which questions are displayed and how they are displayed.
|
|
* @param bool $showquestiontext Display the text of the question within the list.
|
|
* @param string $path path to the script displaying this page.
|
|
* @param bool $showtextoption whether to include the 'Show question text' checkbox.
|
|
*/
|
|
protected function display_options_form($showquestiontext, $scriptpath = '/question/edit.php',
|
|
$showtextoption = true) {
|
|
global $PAGE;
|
|
|
|
echo \html_writer::start_tag('form', array('method' => 'get',
|
|
'action' => new \moodle_url($scriptpath), 'id' => 'displayoptions'));
|
|
echo \html_writer::start_div();
|
|
|
|
$excludes = array('recurse', 'showhidden', 'qbshowtext');
|
|
// If the URL contains any tags then we need to prevent them
|
|
// being added to the form as hidden elements because the tags
|
|
// are managed separately.
|
|
if ($this->baseurl->param('qtagids[0]')) {
|
|
$index = 0;
|
|
while ($this->baseurl->param("qtagids[{$index}]")) {
|
|
$excludes[] = "qtagids[{$index}]";
|
|
$index++;
|
|
}
|
|
}
|
|
echo \html_writer::input_hidden_params($this->baseurl, $excludes);
|
|
|
|
foreach ($this->searchconditions as $searchcondition) {
|
|
echo $searchcondition->display_options($this);
|
|
}
|
|
if ($showtextoption) {
|
|
$this->display_showtext_checkbox($showquestiontext);
|
|
}
|
|
$this->display_advanced_search_form();
|
|
$go = \html_writer::empty_tag('input', array('type' => 'submit', 'value' => get_string('go')));
|
|
echo \html_writer::tag('noscript', \html_writer::div($go), array('class' => 'inline'));
|
|
echo \html_writer::end_div();
|
|
echo \html_writer::end_tag('form');
|
|
$PAGE->requires->yui_module('moodle-question-searchform', 'M.question.searchform.init');
|
|
}
|
|
|
|
/**
|
|
* Print the "advanced" UI elements for the form to select which questions. Hidden by default.
|
|
*/
|
|
protected function display_advanced_search_form() {
|
|
print_collapsible_region_start('', 'advancedsearch', get_string('advancedsearchoptions', 'question'),
|
|
'question_bank_advanced_search');
|
|
foreach ($this->searchconditions as $searchcondition) {
|
|
echo $searchcondition->display_options_adv($this);
|
|
}
|
|
print_collapsible_region_end();
|
|
}
|
|
|
|
/**
|
|
* Display the checkbox UI for toggling the display of the question text in the list.
|
|
* @param bool $showquestiontext the current or default value for whether to display the text.
|
|
*/
|
|
protected function display_showtext_checkbox($showquestiontext) {
|
|
echo '<div>';
|
|
echo \html_writer::empty_tag('input', array('type' => 'hidden', 'name' => 'qbshowtext',
|
|
'value' => 0, 'id' => 'qbshowtext_off'));
|
|
echo \html_writer::checkbox('qbshowtext', '1', $showquestiontext, get_string('showquestiontext', 'question'),
|
|
array('id' => 'qbshowtext_on', 'class' => 'searchoptions'));
|
|
echo "</div>\n";
|
|
}
|
|
|
|
/**
|
|
* Display the header element for the question bank.
|
|
*/
|
|
protected function display_question_bank_header() {
|
|
global $OUTPUT;
|
|
echo $OUTPUT->heading(get_string('questionbank', 'question'), 2);
|
|
}
|
|
|
|
protected function create_new_question_form($category, $canadd) {
|
|
global $CFG;
|
|
echo '<div class="createnewquestion">';
|
|
if ($canadd) {
|
|
create_new_question_button($category->id, $this->editquestionurl->params(),
|
|
get_string('createnewquestion', 'question'));
|
|
} else {
|
|
print_string('nopermissionadd', 'question');
|
|
}
|
|
echo '</div>';
|
|
}
|
|
|
|
/**
|
|
* Prints the table of questions in a category with interactions
|
|
*
|
|
* @param array $contexts Not used!
|
|
* @param moodle_url $pageurl The URL to reload this page.
|
|
* @param string $categoryandcontext 'categoryID,contextID'.
|
|
* @param stdClass $cm Not used!
|
|
* @param bool $recurse Whether to include subcategories.
|
|
* @param int $page The number of the page to be displayed
|
|
* @param int $perpage Number of questions to show per page
|
|
* @param bool $showhidden whether deleted questions should be displayed.
|
|
* @param bool $showquestiontext whether the text of each question should be shown in the list. Deprecated.
|
|
* @param array $addcontexts contexts where the user is allowed to add new questions.
|
|
*/
|
|
protected function display_question_list($contexts, $pageurl, $categoryandcontext,
|
|
$cm = null, $recurse=1, $page=0, $perpage=100, $showhidden=false,
|
|
$showquestiontext = false, $addcontexts = array()) {
|
|
global $CFG, $DB, $OUTPUT, $PAGE;
|
|
|
|
// This function can be moderately slow with large question counts and may time out.
|
|
// We probably do not want to raise it to unlimited, so randomly picking 5 minutes.
|
|
// Note: We do not call this in the loop because quiz ob_ captures this function (see raise() PHP doc).
|
|
\core_php_time_limit::raise(300);
|
|
|
|
$category = $this->get_current_category($categoryandcontext);
|
|
|
|
$strselectall = get_string('selectall');
|
|
$strselectnone = get_string('deselectall');
|
|
|
|
list($categoryid, $contextid) = explode(',', $categoryandcontext);
|
|
$catcontext = \context::instance_by_id($contextid);
|
|
|
|
$canadd = has_capability('moodle/question:add', $catcontext);
|
|
|
|
$this->create_new_question_form($category, $canadd);
|
|
|
|
$this->build_query();
|
|
$totalnumber = $this->get_question_count();
|
|
if ($totalnumber == 0) {
|
|
return;
|
|
}
|
|
$questions = $this->load_page_questions($page, $perpage);
|
|
|
|
echo '<div class="categorypagingbarcontainer">';
|
|
$pageingurl = new \moodle_url('edit.php');
|
|
$r = $pageingurl->params($pageurl->params());
|
|
$pagingbar = new \paging_bar($totalnumber, $page, $perpage, $pageingurl);
|
|
$pagingbar->pagevar = 'qpage';
|
|
echo $OUTPUT->render($pagingbar);
|
|
echo '</div>';
|
|
|
|
echo '<form method="post" action="edit.php">';
|
|
echo '<fieldset class="invisiblefieldset" style="display: block;">';
|
|
echo '<input type="hidden" name="sesskey" value="'.sesskey().'" />';
|
|
echo \html_writer::input_hidden_params($this->baseurl);
|
|
|
|
echo '<div class="categoryquestionscontainer" id="questionscontainer">';
|
|
$this->start_table();
|
|
$rowcount = 0;
|
|
foreach ($questions as $question) {
|
|
$this->print_table_row($question, $rowcount);
|
|
$rowcount += 1;
|
|
}
|
|
$questions->close();
|
|
$this->end_table();
|
|
echo "</div>\n";
|
|
|
|
echo '<div class="categorypagingbarcontainer pagingbottom">';
|
|
echo $OUTPUT->render($pagingbar);
|
|
if ($totalnumber > DEFAULT_QUESTIONS_PER_PAGE) {
|
|
if ($perpage == DEFAULT_QUESTIONS_PER_PAGE) {
|
|
$url = new \moodle_url('edit.php', array_merge($pageurl->params(),
|
|
array('qperpage' => MAXIMUM_QUESTIONS_PER_PAGE)));
|
|
if ($totalnumber > MAXIMUM_QUESTIONS_PER_PAGE) {
|
|
$showall = '<a href="'.$url.'">'.get_string('showperpage', 'moodle', MAXIMUM_QUESTIONS_PER_PAGE).'</a>';
|
|
} else {
|
|
$showall = '<a href="'.$url.'">'.get_string('showall', 'moodle', $totalnumber).'</a>';
|
|
}
|
|
} else {
|
|
$url = new \moodle_url('edit.php', array_merge($pageurl->params(),
|
|
array('qperpage' => DEFAULT_QUESTIONS_PER_PAGE)));
|
|
$showall = '<a href="'.$url.'">'.get_string('showperpage', 'moodle', DEFAULT_QUESTIONS_PER_PAGE).'</a>';
|
|
}
|
|
echo "<div class='paging'>{$showall}</div>";
|
|
}
|
|
echo '</div>';
|
|
|
|
$PAGE->requires->js_call_amd('core_question/qbankmanager', 'init');
|
|
|
|
$this->display_bottom_controls($totalnumber, $recurse, $category, $catcontext, $addcontexts);
|
|
|
|
echo '</fieldset>';
|
|
echo "</form>\n";
|
|
}
|
|
|
|
/**
|
|
* Display the controls at the bottom of the list of questions.
|
|
* @param int $totalnumber Total number of questions that might be shown (if it was not for paging).
|
|
* @param bool $recurse Whether to include subcategories.
|
|
* @param stdClass $category The question_category row from the database.
|
|
* @param context $catcontext The context of the category being displayed.
|
|
* @param array $addcontexts contexts where the user is allowed to add new questions.
|
|
*/
|
|
protected function display_bottom_controls($totalnumber, $recurse, $category, \context $catcontext, array $addcontexts) {
|
|
$caneditall = has_capability('moodle/question:editall', $catcontext);
|
|
$canuseall = has_capability('moodle/question:useall', $catcontext);
|
|
$canmoveall = has_capability('moodle/question:moveall', $catcontext);
|
|
|
|
echo '<div class="modulespecificbuttonscontainer">';
|
|
if ($caneditall || $canmoveall || $canuseall) {
|
|
echo '<strong> '.get_string('withselected', 'question').':</strong><br />';
|
|
|
|
// Print delete and move selected question.
|
|
if ($caneditall) {
|
|
echo '<input type="submit" class="btn btn-secondary" name="deleteselected" value="' . get_string('delete') . "\" />\n";
|
|
}
|
|
|
|
if ($canmoveall && count($addcontexts)) {
|
|
echo '<input type="submit" class="btn btn-secondary" name="move" value="' . get_string('moveto', 'question') . "\" />\n";
|
|
question_category_select_menu($addcontexts, false, 0, "{$category->id},{$category->contextid}");
|
|
}
|
|
}
|
|
echo "</div>\n";
|
|
}
|
|
|
|
protected function start_table() {
|
|
echo '<table id="categoryquestions">' . "\n";
|
|
echo "<thead>\n";
|
|
$this->print_table_headers();
|
|
echo "</thead>\n";
|
|
echo "<tbody>\n";
|
|
}
|
|
|
|
protected function end_table() {
|
|
echo "</tbody>\n";
|
|
echo "</table>\n";
|
|
}
|
|
|
|
protected function print_table_headers() {
|
|
echo "<tr>\n";
|
|
foreach ($this->visiblecolumns as $column) {
|
|
$column->display_header();
|
|
}
|
|
echo "</tr>\n";
|
|
}
|
|
|
|
protected function get_row_classes($question, $rowcount) {
|
|
$classes = array();
|
|
if ($question->hidden) {
|
|
$classes[] = 'dimmed_text';
|
|
}
|
|
if ($question->id == $this->lastchangedid) {
|
|
$classes[] = 'highlight';
|
|
}
|
|
$classes[] = 'r' . ($rowcount % 2);
|
|
return $classes;
|
|
}
|
|
|
|
protected function print_table_row($question, $rowcount) {
|
|
$rowclasses = implode(' ', $this->get_row_classes($question, $rowcount));
|
|
if ($rowclasses) {
|
|
echo '<tr class="' . $rowclasses . '">' . "\n";
|
|
} else {
|
|
echo "<tr>\n";
|
|
}
|
|
foreach ($this->visiblecolumns as $column) {
|
|
$column->display($question, $rowclasses);
|
|
}
|
|
echo "</tr>\n";
|
|
foreach ($this->extrarows as $row) {
|
|
$row->display($question, $rowclasses);
|
|
}
|
|
}
|
|
|
|
public function process_actions() {
|
|
global $CFG, $DB;
|
|
// Now, check for commands on this page and modify variables as necessary.
|
|
if (optional_param('move', false, PARAM_BOOL) and confirm_sesskey()) {
|
|
// Move selected questions to new category.
|
|
$category = required_param('category', PARAM_SEQUENCE);
|
|
list($tocategoryid, $contextid) = explode(',', $category);
|
|
if (! $tocategory = $DB->get_record('question_categories', array('id' => $tocategoryid, 'contextid' => $contextid))) {
|
|
print_error('cannotfindcate', 'question');
|
|
}
|
|
$tocontext = \context::instance_by_id($contextid);
|
|
require_capability('moodle/question:add', $tocontext);
|
|
$rawdata = (array) data_submitted();
|
|
$questionids = array();
|
|
foreach ($rawdata as $key => $value) { // Parse input for question ids.
|
|
if (preg_match('!^q([0-9]+)$!', $key, $matches)) {
|
|
$key = $matches[1];
|
|
$questionids[] = $key;
|
|
}
|
|
}
|
|
if ($questionids) {
|
|
list($usql, $params) = $DB->get_in_or_equal($questionids);
|
|
$sql = "";
|
|
$questions = $DB->get_records_sql("
|
|
SELECT q.*, c.contextid
|
|
FROM {question} q
|
|
JOIN {question_categories} c ON c.id = q.category
|
|
WHERE q.id {$usql}", $params);
|
|
foreach ($questions as $question) {
|
|
question_require_capability_on($question, 'move');
|
|
}
|
|
question_move_questions_to_category($questionids, $tocategory->id);
|
|
redirect($this->baseurl->out(false,
|
|
array('category' => "{$tocategoryid},{$contextid}")));
|
|
}
|
|
}
|
|
|
|
if (optional_param('deleteselected', false, PARAM_BOOL)) { // Delete selected questions from the category.
|
|
// If teacher has already confirmed the action.
|
|
if (($confirm = optional_param('confirm', '', PARAM_ALPHANUM)) and confirm_sesskey()) {
|
|
$deleteselected = required_param('deleteselected', PARAM_RAW);
|
|
if ($confirm == md5($deleteselected)) {
|
|
if ($questionlist = explode(',', $deleteselected)) {
|
|
// For each question either hide it if it is in use or delete it.
|
|
foreach ($questionlist as $questionid) {
|
|
$questionid = (int)$questionid;
|
|
question_require_capability_on($questionid, 'edit');
|
|
if (questions_in_use(array($questionid))) {
|
|
$DB->set_field('question', 'hidden', 1, array('id' => $questionid));
|
|
} else {
|
|
question_delete_question($questionid);
|
|
}
|
|
}
|
|
}
|
|
redirect($this->baseurl);
|
|
} else {
|
|
print_error('invalidconfirm', 'question');
|
|
}
|
|
}
|
|
}
|
|
|
|
// Unhide a question.
|
|
if (($unhide = optional_param('unhide', '', PARAM_INT)) and confirm_sesskey()) {
|
|
question_require_capability_on($unhide, 'edit');
|
|
$DB->set_field('question', 'hidden', 0, array('id' => $unhide));
|
|
|
|
// Purge these questions from the cache.
|
|
\question_bank::notify_question_edited($unhide);
|
|
|
|
redirect($this->baseurl);
|
|
}
|
|
}
|
|
|
|
public function process_actions_needing_ui() {
|
|
global $DB, $OUTPUT;
|
|
if (optional_param('deleteselected', false, PARAM_BOOL)) {
|
|
// Make a list of all the questions that are selected.
|
|
$rawquestions = $_REQUEST; // This code is called by both POST forms and GET links, so cannot use data_submitted.
|
|
$questionlist = ''; // comma separated list of ids of questions to be deleted
|
|
$questionnames = ''; // string with names of questions separated by <br /> with
|
|
// an asterix in front of those that are in use
|
|
$inuse = false; // set to true if at least one of the questions is in use
|
|
foreach ($rawquestions as $key => $value) { // Parse input for question ids.
|
|
if (preg_match('!^q([0-9]+)$!', $key, $matches)) {
|
|
$key = $matches[1];
|
|
$questionlist .= $key.',';
|
|
question_require_capability_on((int)$key, 'edit');
|
|
if (questions_in_use(array($key))) {
|
|
$questionnames .= '* ';
|
|
$inuse = true;
|
|
}
|
|
$questionnames .= $DB->get_field('question', 'name', array('id' => $key)) . '<br />';
|
|
}
|
|
}
|
|
if (!$questionlist) { // No questions were selected.
|
|
redirect($this->baseurl);
|
|
}
|
|
$questionlist = rtrim($questionlist, ',');
|
|
|
|
// Add an explanation about questions in use.
|
|
if ($inuse) {
|
|
$questionnames .= '<br />'.get_string('questionsinuse', 'question');
|
|
}
|
|
$baseurl = new \moodle_url('edit.php', $this->baseurl->params());
|
|
$deleteurl = new \moodle_url($baseurl, array('deleteselected' => $questionlist, 'confirm' => md5($questionlist),
|
|
'sesskey' => sesskey()));
|
|
|
|
$continue = new \single_button($deleteurl, get_string('delete'), 'post');
|
|
echo $OUTPUT->confirm(get_string('deletequestionscheck', 'question', $questionnames), $continue, $baseurl);
|
|
|
|
return true;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Add another search control to this view.
|
|
* @param \core_question\bank\search\condition $searchcondition the condition to add.
|
|
*/
|
|
public function add_searchcondition($searchcondition) {
|
|
$this->searchconditions[] = $searchcondition;
|
|
}
|
|
}
|
|
|