3 * @copyright Copyright (C) 2010-2023, the Friendica project
5 * @license GNU AGPL version 3 or any later version
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU Affero General Public License as
9 * published by the Free Software Foundation, either version 3 of the
10 * License, or (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU Affero General Public License for more details.
17 * You should have received a copy of the GNU Affero General Public License
18 * along with this program. If not, see <https://www.gnu.org/licenses/>.
22 namespace Friendica\Core\Config\Capability;
24 use Friendica\Core\Config\Exception\ConfigPersistenceException;
27 * Interface for transactional saving of config values
28 * It buffers every set/delete until "save()" is called
30 interface ISetConfigValuesTransactional
33 * Get a particular user's config variable given the category name
36 * Get a particular config value from the given category ($cat)
38 * @param string $cat The category of the configuration value
39 * @param string $key The configuration key to query
41 * @return mixed Stored value or null if it does not exist
43 * @throws ConfigPersistenceException In case the persistence layer throws errors
46 public function get(string $cat, string $key);
49 * Sets a configuration value for system config
51 * Stores a config value ($value) in the category ($cat) under the key ($key)
53 * Note: Please do not store booleans - convert to 0/1 integer values!
55 * @param string $cat The category of the configuration value
56 * @param string $key The configuration key to set
57 * @param mixed $value The value to store
59 * @return static the current instance
61 * @throws ConfigPersistenceException In case the persistence layer throws errors
63 public function set(string $cat, string $key, $value): self;
66 * Deletes the given key from the system configuration.
68 * @param string $cat The category of the configuration value
69 * @param string $key The configuration key to delete
71 * @return static the current instance
73 * @throws ConfigPersistenceException In case the persistence layer throws errors
76 public function delete(string $cat, string $key): self;
79 * Saves the node specific config values
81 * @throws ConfigPersistenceException In case the persistence layer throws errors
83 public function save(): void;