You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
120 lines
4.0 KiB
120 lines
4.0 KiB
<?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/>.
|
|
|
|
/**
|
|
* Author vault class.
|
|
*
|
|
* @package mod_forum
|
|
* @copyright 2019 Ryan Wyllie <ryan@moodle.com>
|
|
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
|
|
*/
|
|
|
|
namespace mod_forum\local\vaults;
|
|
|
|
defined('MOODLE_INTERNAL') || die();
|
|
|
|
/**
|
|
* Author vault class.
|
|
*
|
|
* This should be the only place that accessed the database.
|
|
*
|
|
* This uses the repository pattern. See:
|
|
* https://designpatternsphp.readthedocs.io/en/latest/More/Repository/README.html
|
|
*
|
|
* @copyright 2019 Ryan Wyllie <ryan@moodle.com>
|
|
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
|
|
*/
|
|
class author extends db_table_vault {
|
|
/** The table for this vault */
|
|
private const TABLE = 'user';
|
|
|
|
/**
|
|
* Get the table alias.
|
|
*
|
|
* @return string
|
|
*/
|
|
protected function get_table_alias() : string {
|
|
return 'a';
|
|
}
|
|
|
|
/**
|
|
* Build the SQL to be used in get_records_sql.
|
|
*
|
|
* @param string|null $wheresql Where conditions for the SQL
|
|
* @param string|null $sortsql Order by conditions for the SQL
|
|
* @param int|null $userid The user ID
|
|
* @return string
|
|
*/
|
|
protected function generate_get_records_sql(string $wheresql = null, string $sortsql = null, ?int $userid = null) : string {
|
|
$selectsql = 'SELECT * FROM {' . self::TABLE . '} ' . $this->get_table_alias();
|
|
$selectsql .= $wheresql ? ' WHERE ' . $wheresql : '';
|
|
$selectsql .= $sortsql ? ' ORDER BY ' . $sortsql : '';
|
|
|
|
return $selectsql;
|
|
}
|
|
|
|
/**
|
|
* Convert the DB records into author entities.
|
|
*
|
|
* @param array $results The DB records
|
|
* @return author_entity[]
|
|
*/
|
|
protected function from_db_records(array $results) {
|
|
$entityfactory = $this->get_entity_factory();
|
|
|
|
return array_map(function(array $result) use ($entityfactory) {
|
|
[
|
|
'record' => $record,
|
|
] = $result;
|
|
return $entityfactory->get_author_from_stdclass($record);
|
|
}, $results);
|
|
}
|
|
|
|
/**
|
|
* Get the authors for the given posts.
|
|
*
|
|
* Returns a distinct list of authors indexed by author id.
|
|
*
|
|
* @param post_entity[] $posts The list of posts
|
|
* @return author_entity[]
|
|
*/
|
|
public function get_authors_for_posts(array $posts) : array {
|
|
$authorids = array_reduce($posts, function($carry, $post) {
|
|
$carry[$post->get_author_id()] = true;
|
|
return $carry;
|
|
}, []);
|
|
$authorids = array_keys($authorids);
|
|
return $this->get_from_ids($authorids);
|
|
}
|
|
|
|
/**
|
|
* Get the context ids for a set of author ids. The results are indexed
|
|
* by the author id.
|
|
*
|
|
* @param int[] $authorids The list of author ids to fetch.
|
|
* @return int[] Results indexed by author id.
|
|
*/
|
|
public function get_context_ids_for_author_ids(array $authorids) : array {
|
|
$db = $this->get_db();
|
|
[$insql, $params] = $db->get_in_or_equal($authorids);
|
|
$sql = "SELECT instanceid, id FROM {context} WHERE contextlevel = ? AND instanceid {$insql}";
|
|
$records = $db->get_records_sql($sql, array_merge([CONTEXT_USER], $params));
|
|
return array_reduce($authorids, function($carry, $id) use ($records) {
|
|
$carry[$id] = isset($records[$id]) ? (int) $records[$id]->id : null;
|
|
return $carry;
|
|
}, []);
|
|
}
|
|
}
|
|
|