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See Release Notes

  • Bug fixes for general core bugs in 4.2.x will end 22 April 2024 (12 months).
  • Bug fixes for security issues in 4.2.x will end 7 October 2024 (18 months).
  • PHP version: minimum PHP 8.0.0 Note: minimum PHP version has increased since Moodle 4.1. PHP 8.1.x is supported too.
<?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/>.

declare(strict_types=1);

namespace core_course\reportbuilder\local\entities;

use context_coursecat;
use context_helper;
use html_writer;
use lang_string;
use moodle_url;
use stdClass;
use core_course_category;
use core_reportbuilder\local\entities\base;
use core_reportbuilder\local\filters\{category, text};
use core_reportbuilder\local\report\column;
use core_reportbuilder\local\report\filter;

/**
 * Course category entity
 *
 * @package     core_course
 * @copyright   2021 Paul Holden <paulh@moodle.com>
 * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class course_category extends base {

    /**
     * Database tables that this entity uses and their default aliases
     *
     * @return array
     */
    protected function get_default_table_aliases(): array {
        return [
            'context' => 'ccctx',
            'course_categories' => 'cc',
        ];
    }

    /**
     * The default title for this entity
     *
     * @return lang_string
     */
    protected function get_default_entity_title(): lang_string {
        return new lang_string('coursecategory');
    }

    /**
     * Initialise the entity
     *
     * @return base
     */
    public function initialise(): base {
        $columns = $this->get_all_columns();
        foreach ($columns as $column) {
            $this->add_column($column);
        }

        // All the filters defined by the entity can also be used as conditions.
        $filters = $this->get_all_filters();
        foreach ($filters as $filter) {
            $this
                ->add_filter($filter)
                ->add_condition($filter);
        }

        return $this;
    }

    /**
     * Returns list of all available columns
     *
     * @return column[]
     */
    protected function get_all_columns(): array {
        global $DB;

        $tablealias = $this->get_table_alias('course_categories');
        $tablealiascontext = $this->get_table_alias('context');

        // Name column.
        $columns[] = (new column(
            'name',
            new lang_string('categoryname'),
            $this->get_entity_name()
        ))
            ->add_joins($this->get_joins())
> ->add_join($this->get_context_join())
->set_type(column::TYPE_TEXT) ->add_fields("{$tablealias}.name, {$tablealias}.id")
> ->add_fields(context_helper::get_preload_record_columns_sql($tablealiascontext))
->add_callback(static function(?string $name, stdClass $category): string {
< return empty($category->id) ? '' : < core_course_category::get($category->id, MUST_EXIST, true)->get_formatted_name();
> if (empty($category->id)) { > return ''; > } > > context_helper::preload_from_record($category); > $context = context_coursecat::instance($category->id); > > return format_string($category->name, true, ['context' => $context]);
}) ->set_is_sortable(true); // Category name with link column. $columns[] = (new column( 'namewithlink', new lang_string('namewithlink', 'core_course'), $this->get_entity_name() )) ->add_joins($this->get_joins()) ->add_join($this->get_context_join()) ->set_type(column::TYPE_TEXT) ->add_fields("{$tablealias}.name, {$tablealias}.id") ->add_fields(context_helper::get_preload_record_columns_sql($tablealiascontext)) ->add_callback(static function(?string $name, stdClass $category): string { if (empty($category->id)) { return ''; } context_helper::preload_from_record($category); $context = context_coursecat::instance($category->id); $url = new moodle_url('/course/management.php', ['categoryid' => $category->id]); return html_writer::link($url, format_string($category->name, true, ['context' => $context])); }) ->set_is_sortable(true); // Path column. $columns[] = (new column( 'path', new lang_string('categorypath'), $this->get_entity_name() )) ->add_joins($this->get_joins()) ->set_type(column::TYPE_TEXT) ->add_fields("{$tablealias}.name, {$tablealias}.id") ->add_callback(static function(?string $name, stdClass $category): string { return empty($category->id) ? '' : core_course_category::get($category->id, MUST_EXIST, true)->get_nested_name(false); }) ->set_disabled_aggregation(['groupconcat', 'groupconcatdistinct']) ->set_is_sortable(true); // ID number column. $columns[] = (new column( 'idnumber', new lang_string('idnumbercoursecategory'), $this->get_entity_name() )) ->add_joins($this->get_joins()) ->set_type(column::TYPE_TEXT) ->add_fields("{$tablealias}.idnumber") ->set_is_sortable(true); // Description column (note we need to join/select from the context table in order to format the column). $descriptionfieldsql = "{$tablealias}.description"; if ($DB->get_dbfamily() === 'oracle') { $descriptionfieldsql = $DB->sql_order_by_text($descriptionfieldsql, 1024); } $columns[] = (new column( 'description', new lang_string('description'), $this->get_entity_name() )) ->add_joins($this->get_joins()) ->add_join($this->get_context_join()) ->set_type(column::TYPE_LONGTEXT) ->add_field($descriptionfieldsql, 'description') ->add_fields("{$tablealias}.descriptionformat, {$tablealias}.id") ->add_fields(context_helper::get_preload_record_columns_sql($tablealiascontext)) ->add_callback(static function(?string $description, stdClass $category): string { global $CFG; require_once("{$CFG->libdir}/filelib.php"); if ($description === null) { return ''; } context_helper::preload_from_record($category); $context = context_coursecat::instance($category->id); $description = file_rewrite_pluginfile_urls($description, 'pluginfile.php', $context->id, 'coursecat', 'description', null); return format_text($description, $category->descriptionformat, ['context' => $context->id]); }); return $columns; } /** * Return list of all available filters * * @return filter[] */ protected function get_all_filters(): array { $tablealias = $this->get_table_alias('course_categories'); // Select category filter. $filters[] = (new filter( category::class, 'name', new lang_string('categoryselect', 'core_reportbuilder'), $this->get_entity_name(), "{$tablealias}.id" )) ->add_joins($this->get_joins()) ->set_options([ 'requiredcapabilities' => 'moodle/category:viewcourselist', ]); // Name filter. $filters[] = (new filter( text::class, 'text', new lang_string('categoryname'), $this->get_entity_name(), "{$tablealias}.name" )) ->add_joins($this->get_joins()); // ID number filter. $filters[] = (new filter( text::class, 'idnumber', new lang_string('idnumbercoursecategory'), $this->get_entity_name(), "{$tablealias}.idnumber" )) ->add_joins($this->get_joins()); return $filters; } /** * Return context join used by columns * * @return string */ private function get_context_join(): string { $coursecategories = $this->get_table_alias('course_categories'); $context = $this->get_table_alias('context'); return "LEFT JOIN {context} {$context} ON {$context}.instanceid = {$coursecategories}.id AND {$context}.contextlevel = " . CONTEXT_COURSECAT; } }