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lib.php
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lib.php
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<?php
// This file is part of Moodle - https://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 <https://www.gnu.org/licenses/>.
/**
* Library of interface functions and constants.
*
* @package mod_bookit
* @copyright 2024 Melanie Treitinger, Ruhr-Universität Bochum <[email protected]>
* @license https://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
/**
* Return if the plugin supports $feature.
*
* @param string $feature Constant representing the feature.
* @return true | null True if the feature is supported, null otherwise.
*/
function bookit_supports(string $feature): ?bool {
return match ($feature) {
FEATURE_MOD_INTRO, FEATURE_BACKUP_MOODLE2 => true,
default => null,
};
}
/**
* Saves a new instance of the mod_bookit into the database.
*
* Given an object containing all the necessary data, (defined by the form
* in mod_form.php) this function will create a new instance and return the id
* number of the instance.
*
* @param object $moduleinstance An object from the form.
* @param mod_bookit_mod_form|null $mform The form.
* @return int The id of the newly inserted record.
* @throws dml_exception
*/
function bookit_add_instance(object $moduleinstance, mod_bookit_mod_form|null $mform = null): int {
global $DB;
$moduleinstance->timecreated = time();
$id = $DB->insert_record('bookit', $moduleinstance);
return $id;
}
/**
* Updates an instance of the mod_bookit in the database.
*
* Given an object containing all the necessary data (defined in mod_form.php),
* this function will update an existing instance with new data.
*
* @param object $moduleinstance An object from the form in mod_form.php.
* @return bool True if successful, false otherwise.
* @throws dml_exception
*/
function bookit_update_instance(object $moduleinstance): bool {
global $DB;
$moduleinstance->timemodified = time();
$moduleinstance->id = $moduleinstance->instance;
return $DB->update_record('bookit', $moduleinstance);
}
/**
* Removes an instance of the mod_bookit from the database.
*
* @param int $id Id of the module instance.
* @return bool True if successful, false on failure.
* @throws dml_exception
*/
function bookit_delete_instance(int $id): bool {
global $DB;
$exists = $DB->get_record('bookit', ['id' => $id]);
if (!$exists) {
return false;
}
$DB->delete_records('bookit', ['id' => $id]);
return true;
}