<?php
// This file is part of the Query submission plugin
//
// 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 tool_brickfield\local\areas\core_question;
use core\event\question_created;
use core\event\question_updated;
/**
< * Base class for various question-related areas
> * Base class for various question-related areas.
*
< * This is an abstract class so it will be skipped by manager when it finds all areas
> * This is an abstract class so it will be skipped by manager when it finds all areas.
*
* @package tool_brickfield
* @copyright 2020 onward: Brickfield Education Labs, www.brickfield.ie
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
abstract class answerbase extends base {
/**
* Get table name reference.
> *
* @return string
*/
public function get_ref_tablename(): string {
return 'question';
}
/**
* Find recordset of the relevant areas.
> *
* @param \core\event\base $event
* @return \moodle_recordset|null
< * @throws \coding_exception
< * @throws \dml_exception
*/
public function find_relevant_areas(\core\event\base $event): ?\moodle_recordset {
global $DB;
<
if (($event instanceof question_created) || ($event instanceof question_updated)) {
< $rs = $DB->get_recordset_sql(
< "SELECT {$this->get_type()} AS type,
> $sql = "SELECT {$this->get_type()} AS type,
ctx.id AS contextid,
{$this->get_standard_area_fields_sql()}
a.id AS itemid,
{$this->get_reftable_field_sql()}
< t.id AS refid,
> q.id AS refid,
{$this->get_course_and_cat_sql($event)}
a.{$this->get_fieldname()} AS content
< FROM {question} t
< INNER JOIN {question_answers} a ON a.question = t.id
< INNER JOIN {question_categories} qc ON qc.id = t.category
< INNER JOIN {context} ctx ON ctx.id = qc.contextid
< WHERE (t.id = :refid)
< ORDER BY a.id",
< [
< 'refid' => $event->objectid,
< ]);
> FROM {question} q
> INNER JOIN {question_answers} a
> ON a.question = q.id
> INNER JOIN {question_versions} qv
> ON qv.questionid = q.id
> INNER JOIN {question_bank_entries} qbe
> ON qbe.id = qv.questionbankentryid
> INNER JOIN {question_categories} qc
> ON qc.id = qbe.questioncategoryid
> INNER JOIN {context} ctx
> ON ctx.id = qc.contextid
> WHERE (q.id = :refid)
> ORDER BY a.id";
>
> $rs = $DB->get_recordset_sql($sql, ['refid' => $event->objectid]);
return $rs;
>
}
return null;
}
/**
* Return an array of area objects that contain content at the site and system levels only. This would be question content from
* question categories at the system context, or course category context.
> *
* @return mixed
< * @throws \dml_exception
*/
public function find_system_areas(): ?\moodle_recordset {
global $DB;
< $select = 'SELECT ' . $this->get_type() . ' AS type, qc.contextid AS contextid, ' . $this->get_standard_area_fields_sql() .
< ' a.id AS itemid, ' . $this->get_reftable_field_sql() . 't.id AS refid, '.
< SITEID . ' as courseid, cc.id as categoryid, a.'.$this->get_fieldname().' AS content ';
< $from = 'FROM {question} t ' .
< 'INNER JOIN {question_answers} a ON a.question = t.id ' .
< 'INNER JOIN {question_categories} qc ON qc.id = t.category ' .
< 'INNER JOIN {context} ctx ON ctx.id = qc.contextid ' .
< 'LEFT JOIN {course_categories} cc ON cc.id = ctx.instanceid AND ctx.contextlevel = :coursecat ';
< $where = 'WHERE (ctx.contextlevel = :syscontext) OR (ctx.contextlevel = :coursecat2) ';
< $order = 'ORDER BY a.id';
$params = [
'syscontext' => CONTEXT_SYSTEM,
'coursecat' => CONTEXT_COURSECAT,
'coursecat2' => CONTEXT_COURSECAT,
];
< return $DB->get_recordset_sql($select . $from . $where . $order, $params);
> $sql = "SELECT {$this->get_type()} AS type,
> qc.contextid AS contextid,
> {$this->get_standard_area_fields_sql()}
> a.id AS itemid,
> {$this->get_reftable_field_sql()}
> q.id AS refid,
> " . SITEID . " as courseid,
> cc.id as categoryid,
> a.{$this->get_fieldname()} AS content
> FROM {question} q
> INNER JOIN {question_answers} a
> ON a.question = q.id
> INNER JOIN {question_versions} qv
> ON qv.questionid = q.id
> INNER JOIN {question_bank_entries} qbe
> ON qbe.id = qv.questionbankentryid
> INNER JOIN {question_categories} qc
> ON qc.id = qbe.questioncategoryid
> INNER JOIN {context} ctx
> ON ctx.id = qc.contextid
> LEFT JOIN {course_categories} cc
> ON cc.id = ctx.instanceid
> AND ctx.contextlevel = :coursecat
> WHERE (ctx.contextlevel = :syscontext)
> OR (ctx.contextlevel = :coursecat2)
> ORDER BY a.id";
>
> return $DB->get_recordset_sql($sql, $params);
}
/**
* Find recordset of the course areas.
> *
* @param int $courseid
* @return \moodle_recordset
< * @throws \coding_exception
< * @throws \dml_exception
*/
public function find_course_areas(int $courseid): ?\moodle_recordset {
global $DB;
$coursecontext = \context_course::instance($courseid);
< return $DB->get_recordset_sql(
< "SELECT {$this->get_type()} AS type,
> $param = [
> 'ctxcourse' => CONTEXT_COURSE,
> 'courseid' => $courseid,
> 'module' => CONTEXT_MODULE,
> 'coursecontextpath' => $DB->sql_like_escape($coursecontext->path) . '/%',
> ];
>
> $sql = "SELECT {$this->get_type()} AS type,
ctx.id AS contextid,
{$this->get_standard_area_fields_sql()}
a.id AS itemid,
{$this->get_reftable_field_sql()}
< t.id AS refid,
> q.id AS refid,
{$courseid} AS courseid,
a.{$this->get_fieldname()} AS content
< FROM {question} t
< INNER JOIN {question_answers} a ON a.question = t.id
< INNER JOIN {question_categories} qc ON qc.id = t.category
< INNER JOIN {context} ctx ON ctx.id = qc.contextid
< WHERE (ctx.contextlevel = :ctxcourse AND ctx.id = qc.contextid AND ctx.instanceid = :courseid) OR
< (ctx.contextlevel = :module AND {$DB->sql_like('ctx.path', ':coursecontextpath')})
< ORDER BY a.id",
< ['ctxcourse' => CONTEXT_COURSE,
< 'courseid' => $courseid,
< 'module' => CONTEXT_MODULE,
< 'coursecontextpath' => $DB->sql_like_escape($coursecontext->path) . '/%',
< ]);
> FROM {question} q
> INNER JOIN {question_answers} a
> ON a.question = q.id
> INNER JOIN {question_versions} qv
> ON qv.questionid = q.id
> INNER JOIN {question_bank_entries} qbe
> ON qbe.id = qv.questionbankentryid
> INNER JOIN {question_categories} qc
> ON qc.id = qbe.questioncategoryid
> INNER JOIN {context} ctx
> ON ctx.id = qc.contextid
> WHERE (ctx.contextlevel = :ctxcourse
> AND ctx.id = qc.contextid
> AND ctx.instanceid = :courseid)
> OR (ctx.contextlevel = :module
> AND {$DB->sql_like('ctx.path', ':coursecontextpath')})
> ORDER BY a.id ASC";
>
> return $DB->get_recordset_sql($sql, $param);
}
}