X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;ds=sidebyside;f=src%2FCore%2FConfig.php;h=559ee83ece57e08b8bfedb53d94510b082606459;hb=4facd1dfdba93ede48ca40b5e146424e6701118b;hp=be0d0def161a8c4215f1555f8df32850dd62aec8;hpb=33b61ab26283deccb9ecf7f7b28fce7aa27ef2f1;p=friendica.git

diff --git a/src/Core/Config.php b/src/Core/Config.php
index be0d0def16..559ee83ece 100644
--- a/src/Core/Config.php
+++ b/src/Core/Config.php
@@ -1,63 +1,72 @@
 <?php
-namespace Friendica\Core;
-
-use dba;
-use dbm;
-
 /**
+ * System Configuration Class
+ *
  * @file include/Core/Config.php
  *
- *  @brief Contains the class with methods for system configuration
+ * @brief Contains the class with methods for system configuration
  */
+namespace Friendica\Core;
 
+use Friendica\Core\Config\ConfigCache;
+use Friendica\Core\Config\IConfigAdapter;
+use Friendica\Core\Config\IConfigCache;
 
 /**
- * @brief Arbitrary sytem configuration storage
- * Note:
- * Please do not store booleans - convert to 0/1 integer values
- * The Config::get() functions return boolean false for keys that are unset,
- * and this could lead to subtle bugs.
+ * @brief Arbitrary system configuration storage
  *
- * There are a few places in the code (such as the admin panel) where boolean
- * configurations need to be fixed as of 10/08/2011.
+ * Note:
+ * If we ever would decide to return exactly the variable type as entered,
+ * we will have fun with the additional features. :-)
  */
-class Config {
+class Config
+{
+	/**
+	 * @var Config\IConfigAdapter|null
+	 */
+	private static $adapter;
 
+	/**
+	 * @var Config\IConfigCache
+	 */
 	private static $cache;
-	private static $in_db;
+
+	/**
+	 * Initialize the config with only the cache
+	 *
+	 * @param Config\IConfigCache $cache  The configuration cache
+	 */
+	public static function init(Config\IConfigCache $cache)
+	{
+		self::$cache  = $cache;
+	}
+
+	/**
+	 * Add the adapter for DB-backend
+	 *
+	 * @param Config\IConfigAdapter $adapter
+	 */
+	public static function setAdapter(Config\IConfigAdapter $adapter)
+	{
+		self::$adapter = $adapter;
+	}
 
 	/**
 	 * @brief Loads all configuration values of family into a cached storage.
 	 *
-	 * All configuration values of the system are stored in global cache
-	 * which is available under the global variable $a->config
+	 * All configuration values of the system are stored in the cache ( @see IConfigCache )
+	 *
+	 * @param string $family The category of the configuration value
 	 *
-	 * @param string $family
-	 *  The category of the configuration value
 	 * @return void
 	 */
-	public static function load($family = "config") {
-
-		// We don't preload "system" anymore.
-		// This reduces the number of database reads a lot.
-		if ($family === 'system') {
+	public static function load($family = "config")
+	{
+		if (!isset(self::$adapter) || !self::$adapter->isConnected()) {
 			return;
 		}
 
-		$a = get_app();
-
-		$r = dba::select('config', array('v', 'k'), array('cat' => $family));
-		while ($rr = dba::fetch($r)) {
-			$k = $rr['k'];
-			if ($family === 'config') {
-				$a->config[$k] = $rr['v'];
-			} else {
-				$a->config[$family][$k] = $rr['v'];
-				self::$cache[$family][$k] = $rr['v'];
-				self::$in_db[$family][$k] = true;
-			}
-		}
-		dba::close($r);
+		self::$adapter->load($family);
 	}
 
 	/**
@@ -65,135 +74,64 @@ class Config {
 	 * ($family) and a key.
 	 *
 	 * Get a particular config value from the given category ($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.
+	 * and the $key from a cached storage either from the self::$adapter
+	 * (@see IConfigAdapter ) or from the static::$cache (@see IConfigCache ).
+	 *
+	 * @param string  $family        The category of the configuration value
+	 * @param string  $key           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)
 	 *
-	 * @param string $family
-	 *  The category of the configuration value
-	 * @param string $key
-	 *  The configuration key to query
-	 * @param mixed $default_value optional
-	 *  The value to return if key is not set (default: null)
-	 * @param boolean $refresh optional
-	 *  If true the config is loaded from the db and not from the cache (default: false)
 	 * @return mixed Stored value or null if it does not exist
 	 */
-	public static function get($family, $key, $default_value = null, $refresh = false) {
-
-		$a = get_app();
-
-		if (!$refresh) {
-
-			// Do we have the cached value? Then return it
-			if (isset(self::$cache[$family][$key])) {
-				if (self::$cache[$family][$key] === '!<unset>!') {
-					return $default_value;
-				} else {
-					return self::$cache[$family][$key];
-				}
-			}
-		}
-
-		$ret = dba::select('config', array('v'), array('cat' => $family, 'k' => $key), array('limit' => 1));
-		if (dbm::is_result($ret)) {
-			// manage array value
-			$val = (preg_match("|^a:[0-9]+:{.*}$|s", $ret['v']) ? unserialize($ret['v']) : $ret['v']);
-
-			// Assign the value from the database to the cache
-			self::$cache[$family][$key] = $val;
-			self::$in_db[$family][$key] = true;
-			return $val;
-		} elseif (isset($a->config[$family][$key])) {
-
-			// Assign the value (mostly) from the .htconfig.php to the cache
-			self::$cache[$family][$key] = $a->config[$family][$key];
-			self::$in_db[$family][$key] = false;
-
-			return $a->config[$family][$key];
+	public static function get($family, $key, $default_value = null, $refresh = false)
+	{
+		if (!isset(self::$adapter) || !self::$adapter->isConnected()) {
+			return self::$cache->get($family, $key, $default_value);
 		}
 
-		self::$cache[$family][$key] = '!<unset>!';
-		self::$in_db[$family][$key] = false;
-
-		return $default_value;
+		return self::$adapter->get($family, $key, $default_value, $refresh);
 	}
 
 	/**
 	 * @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 string $value
-	 *  The value to store
-	 * @return mixed Stored $value or false if the database update failed
+	 * @param string $family The category of the configuration value
+	 * @param string $key    The configuration key to set
+	 * @param mixed  $value  The value to store
+	 *
+	 * @return bool Operation success
 	 */
-	public static function set($family, $key, $value) {
-		$a = get_app();
-
-		// We store our setting values in a string variable.
-		// So we have to do the conversion here so that the compare below works.
-		// The exception are array values.
-		$dbvalue = (!is_array($value) ? (string)$value : $value);
-
-		$stored = self::get($family, $key, null, true);
-
-		if (($stored === $dbvalue) && self::$in_db[$family][$key]) {
-			return true;
+	public static function set($family, $key, $value)
+	{
+		if (!isset(self::$adapter) || !self::$adapter->isConnected()) {
+			return self::$cache->set($family, $key, $value);
 		}
 
-		if ($family === 'config') {
-			$a->config[$key] = $dbvalue;
-		} elseif ($family != 'system') {
-			$a->config[$family][$key] = $dbvalue;
-		}
-
-		// Assign the just added value to the cache
-		self::$cache[$family][$key] = $dbvalue;
-
-		// manage array value
-		$dbvalue = (is_array($value) ? serialize($value) : $dbvalue);
-
-		dba::update('config', array('v' => $dbvalue), array('cat' => $family, 'k' => $key), true);
-
-		if ($ret) {
-			self::$in_db[$family][$key] = true;
-			return $value;
-		}
-		return $ret;
+		return self::$adapter->set($family, $key, $value);
 	}
 
 	/**
 	 * @brief Deletes the given key from the system configuration.
 	 *
-	 * Removes the configured value from the stored cache in $a->config
-	 * and removes it from the database.
+	 * Removes the configured value from the stored cache in self::$config
+	 * (@see ConfigCache ) and removes it from the database (@see IConfigAdapter ).
+	 *
+	 * @param string $family The category of the configuration value
+	 * @param string $key    The configuration key to delete
 	 *
-	 * @param string $family
-	 *  The category of the configuration value
-	 * @param string $key
-	 *  The configuration key to delete
 	 * @return mixed
 	 */
-	public static function delete($family, $key) {
-
-		if (isset(self::$cache[$family][$key])) {
-			unset(self::$cache[$family][$key]);
-			unset(self::$in_db[$family][$key]);
+	public static function delete($family, $key)
+	{
+		if (!isset(self::$adapter) || !self::$adapter->isConnected()) {
+			self::$cache->delete($family, $key);
 		}
 
-		$ret = dba::delete('config', array('cat' => $family, 'k' => $key));
-
-		return $ret;
+		return self::$adapter->delete($family, $key);
 	}
 }