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<?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/>. namespace mod_bigbluebuttonbn; use cache; use mod_bigbluebuttonbn\local\extension\action_url_addons; use mod_bigbluebuttonbn\local\extension\mod_form_addons; use mod_bigbluebuttonbn\local\extension\mod_instance_helper; use stdClass; use core_plugin_manager; /** * Generic subplugin management helper * * @package mod_bigbluebuttonbn * @copyright 2023 onwards, Blindside Networks Inc * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later * @author Laurent David (laurent@call-learning.fr) / class extension { /* * Plugin name for extension / const BBB_EXTENSION_PLUGIN_NAME = 'bbbext'; /* * Invoke a subplugin hook that will return additional parameters * * @param string $action * @param array $data * @param array $metadata * @param int\|null $instanceid * @return array associative array with the additional data and metadata (indexed by 'data' and * 'metadata' keys). / public static function action_url_addons( string $action = '', array $data = [], array $metadata = [], ?int $instanceid = null ): array { $allmutationclass = self::get_instances_implementing(action_url_addons::class); $additionaldata = []; $additionalmetadata = []; foreach ($allmutationclass as $mutationclass) { // Here we intentionally just pass data and metadata and not the result as we // do not want subplugin to assume that another subplugin is doing a modification. ['data' => $newdata, 'metadata' => $newmetadata] = $mutationclass->execute($action, $data, $metadata, $instanceid); $additionaldata = array_merge($additionaldata, $newdata ?? []); $additionalmetadata = array_merge($additionalmetadata, $newmetadata ?? []); } return [ 'data' => $additionaldata, 'metadata' => $additionalmetadata ]; } /* * Get new instance of classes that are named on the base of this classname and implementing this class * * @param string $classname * @param array\|null $newparameters additional parameters for the constructor. * @return array / protected static function get_instances_implementing(string $classname, ?array $newparameters = []): array { $classes = self::get_classes_implementing($classname); sort($classes); // Make sure all extension classes are returned in the same order. This is arbitrarily in // alphabetical order and depends on the classname but this one way to ensure consistency across calls. return array_map(function($targetclassname) use ($newparameters) { // If $newparameters is null, the constructor will be called without parameters. return new $targetclassname(...$newparameters); }, $classes); } /* * Get classes are named on the base of this classname and implementing this class * * @param string $classname * @return array / protected static function get_classes_implementing(string $classname): array { // Get the class basename without Reflection API. $classnamecomponents = explode("\\", $classname); $classbasename = end($classnamecomponents); $allsubs = core_plugin_manager::instance()->get_plugins_of_type(self::BBB_EXTENSION_PLUGIN_NAME); $extensionclasses = []; foreach ($allsubs as $sub) { if (!$sub->is_enabled()) { continue; } $targetclassname = "\\bbbext_{$sub->name}\\bigbluebuttonbn\\$classbasename"; if (!class_exists($targetclassname)) { continue; } if (!is_subclass_of($targetclassname, $classname)) { debugging("The class $targetclassname should extend $classname in the subplugin {$sub->name}. Ignoring."); continue; } $extensionclasses[] = $targetclassname; } return $extensionclasses; } /* * Get all mod_form addons classes instances * * @param \MoodleQuickForm $mform * @param stdClass\|null $bigbluebuttondata * @param string\|null $suffix * @return array of custom completion addon classes instances / public static function mod_form_addons_instances(\MoodleQuickForm $mform, ?stdClass $bigbluebuttondata = null, string $suffix = null): array { return self::get_instances_implementing(mod_form_addons::class, [$mform, $bigbluebuttondata, $suffix]); } /* * Get additional join tables for instance when extension activated * * @return array of additional tables names. They all have a field called bigbluebuttonbnid that identifies the bbb instance. / public static function get_join_tables(): array { global $DB; // We use cache here as it will be called very often. $cache = cache::make('mod_bigbluebuttonbn', 'subplugins'); if ($cache->get('additionaltables')) { return $cache->get('additionaltables'); } $additionaltablesclasses = self::get_instances_implementing(mod_instance_helper::class); $tables = []; foreach ($additionaltablesclasses as $tableclass) { $tables = array_merge($tables, $tableclass->get_join_tables() ?? []); } // Warning and removal for tables that do not have the bigbluebuttonid field. foreach ($tables as $index => $table) { $columns = $DB->get_columns($table); if (empty($columns['bigbluebuttonbnid'])) { debugging("get_instance_additional_tables: $table should have a column named bigbluebuttonid"); unset($tables[$index]); } } $cache->set('additionaltables', $tables); return $tables; } /* * Add instance processing * * @param stdClass $data data to persist * @return void / public static function add_instance(stdClass $data): void { $formmanagersclasses = self::get_instances_implementing(mod_instance_helper::class); foreach ($formmanagersclasses as $fmclass) { $fmclass->add_instance($data); } } /* * Update instance processing * * @param stdClass $data data to persist * @return void / public static function update_instance(stdClass $data): void { $formmanagersclasses = self::get_instances_implementing(mod_instance_helper::class); foreach ($formmanagersclasses as $fmclass) { $fmclass->update_instance($data); } } /* * Delete instance processing * * @param int $id instance id * @return void */ public static function delete_instance(int $id): void { $formmanagersclasses = self::get_instances_implementing(mod_instance_helper::class); foreach ($formmanagersclasses as $fmclass) { $fmclass->delete_instance($id); } } }

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