Proyectos de Subversion Moodle

<?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 theme_config;

use core_course_category;

use core_reportbuilder\local\entities\base;

use core_reportbuilder\local\filters\{category, select, 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

     *

     * @return string[]

     */

    protected function get_default_tables(): array {

        return [

            'context',

            'course_categories',

        ];

    }

    /**

     * 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 {

                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]);

            });

        // Theme column.

        $columns[] = (new column(

            'theme',

            new lang_string('theme'),

            $this->get_entity_name()

        ))

            ->add_joins($this->get_joins())

            ->set_type(column::TYPE_TEXT)

            ->add_fields("{$tablealias}.theme")

            ->set_is_sortable(true)

            ->add_callback(static function (?string $theme): string {

                if ((string) $theme === '') {

                    return '';

                }

                return get_string('pluginname', "theme_{$theme}");

            });

        // Course count column.

        $columns[] = (new column(

            'coursecount',

            new lang_string('coursecount', 'core_course'),

            $this->get_entity_name()

        ))

            ->add_joins($this->get_joins())

            ->set_type(column::TYPE_INTEGER)

            ->add_fields("{$tablealias}.coursecount")

            ->set_is_sortable(true);

        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());

        // Theme filter.

        $filters[] = (new filter(

            select::class,

            'theme',

            new lang_string('theme'),

            $this->get_entity_name(),

            "{$tablealias}.theme",

        ))

            ->set_options_callback(static function(): array {

                return array_map(

                    fn(theme_config $theme) => $theme->get_theme_name(),

                    get_list_of_themes(),

                );

            })

            ->add_joins($this->get_joins());

        return $filters;

    }

    /**

     * Return context join used by columns

     *

     * @return string

     */

    public 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;

    }

}