friendica/src/Core/Config/IConfigAdapter.php

73 lines
2.4 KiB
PHP

<?php
namespace Friendica\Core\Config;
/**
*
* @author Hypolite Petovan <mrpetovan@gmail.com>
*/
interface IConfigAdapter
{
/**
* @brief Loads all configuration values into a cached storage.
*
* All configuration values of the system are stored in global cache
* which is available under the global variable $a->config
*
* @param string $cat The category of the configuration values to load
*
* @return void
*/
public function load($cat = "config");
/**
* @brief Get a particular user's config variable given the category name
* ($family) and a key.
*
* Get a particular config value from the given category ($family)
* and the $key from a cached storage in $a->config[$uid].
* $instore is only used by the set_config function
* to determine if the key already exists in the DB
* If a key is found in the DB but doesn't exist in
* local config cache, pull it into the cache so we don't have
* to hit the DB again for this item.
*
* @param string $cat The category of the configuration value
* @param string $k The configuration key to query
* @param mixed $default_value optional, The value to return if key is not set (default: null)
* @param boolean $refresh optional, If true the config is loaded from the db and not from the cache (default: false)
*
* @return mixed Stored value or null if it does not exist
*/
public function get($cat, $k, $default_value = null, $refresh = false);
/**
* @brief Sets a configuration value for system config
*
* Stores a config value ($value) in the category ($family) under the key ($key)
* for the user_id $uid.
*
* Note: Please do not store booleans - convert to 0/1 integer values!
*
* @param string $family The category of the configuration value
* @param string $key The configuration key to set
* @param mixed $value The value to store
*
* @return mixed Stored $value or false if the database update failed
*/
public function set($cat, $k, $value);
/**
* @brief Deletes the given key from the system configuration.
*
* Removes the configured value from the stored cache in $a->config
* and removes it from the database.
*
* @param string $cat The category of the configuration value
* @param string $k The configuration key to delete
*
* @return mixed
*/
public function delete($cat, $k);
}