New format for config files.

Writing of config files now supported

1 files changed, 145 insertions, 50 deletions

diff --git a/system/classes/config.php b/system/classes/config.php
index b0550b4..7d32f69 100644
--- a/system/classes/config.php
+++ b/system/classes/config.php
@@ -1,51 +1,146 @@
-<?php
-
-/**
- * Handles retrieving of the configuration options.
- * You can add any configuration values to your /application/config.php file
- * as associative array and get those values using the get() method.
- */
-class Config {
-
-    /**
-     * Array of configuration options
-     * @var array  
-     * @access public 
-     * @static 
-     */
-	public static $data=array();
-
-    /**
-     * Retrieves a configuration value. You can use a dot notation
-	 *  to access properties in nested arrays like this:
-	 * <code>
-	 *     Config::get('database.default.user');
-	 * </code>
-     * 
-     * @param string    $key Configuration key to retrieve.
-     * @param string    $default Default value to return if the key is not found. 
-     * @return mixed    Configuration value
-     * @access public    
-     * @throws Exception If default value is not specified and the key is not found
-     * @static 
-     */
-	public static function get() {
-		$p = func_get_args();
-		$keys = explode('.', $p[0]);
-		$group=Config::$data;
-		for ($i = 0; $i < count($keys); $i++) {
-			if ($i == count($keys) - 1) {
-				if (isset($group[$keys[$i]]))
-					return $group[$keys[$i]];
-				break;
-			}
-			$group = Misc::arr($group, $keys[$i], null);
-			if (!is_array($group))
-				break;
-		}
-		if (isset($p[1]))
-			return $p[1];
-		throw new Exception("Configuration not set for {$p[0]}.");
-	}
-
+<?php

+

+/**

+ * Handles retrieving of the configuration options.

+ * You can add configuration files to /application/config folder

+ * and later access them via the get() method.

+ * @package Core

+ */

+class Config {

+	

+    /**

+     * Array of configuration files and values loaded from them

+     * @var array  

+     * @access protected 

+     * @static 

+     */

+	protected static $groups = array();

+	

+	/**

+     * Loads a group configuration file it has not been loaded before

+	 * and returns its options.

+     * 

+     * @param string    $name Name of the configuration group to load

+     * @return array    Array of options for this group

+     * @access public    

+     * @throws Exception If a configuration file for this group does not exist

+     * @static 

+     */

+	public static function get_group($name) {

+		

+		if (!isset(Config::$groups[$name])) {

+

+			$file = Misc::find_file('config', $name);

+			

+			if (!$file)

+				throw new Exception("Configuration file {$name}.php was not found.");

+				

+			Config::load_group($name,$file);

+		}

+		

+		return Config::$groups[$name]['options'];

+	}

+	

+	/**

+     * Loads group from file

+     * 

+     * @param string $name Name to assign the loaded group

+	 * @param string $file File to load

+     * @access public    

+     * @static 

+     */

+	public static function load_group($name, $file) {

+	

+		Config::$groups[$name] = array(

+			'file' => $file,

+			'options' => include($file)

+		);

+	}

+	

+    /**

+     * Retrieves a configuration value. You can use a dot notation

+	 * to access properties in group arrays. The first part of the key

+	 * specifies the configuration file from which options should be loaded from

+	 * <code>

+	 *     //Loads ['default']['user'] option

+	 *     //from database.php configuration file

+	 *     Config::get('database.default.user');

+	 * </code>

+     * 

+     * @param string    $key Configuration key to retrieve.

+     * @param string    $default Default value to return if the key is not found. 

+     * @return mixed    Configuration value

+     * @access public    

+     * @throws Exception If default value is not specified and the key is not found

+     * @static 

+     */

+	public static function get() {

+		$p = func_get_args();

+		

+		$keys = explode('.', $p[0]);

+		$group_name = array_shift($keys);

+		$group = Config::get_group($group_name);

+		

+		for ($i = 0; $i < count($keys); $i++) {

+			if ($i == count($keys) - 1) {

+				if (isset($group[$keys[$i]]))

+					return $group[$keys[$i]];

+				break;

+			}

+			$group = Misc::arr($group, $keys[$i], null);

+			if (!is_array($group))

+				break;

+		}

+		

+		if (isset($p[1]))

+			return $p[1];

+			

+		throw new Exception("Configuration not set for {$p[0]}.");

+	}

+	

+	/**

+     * Sets a configuration option.

+     * 

+     * @param string    $key    Configuration key to set

+	 * @param string    $value  Value to set for this option

+     * @access public    

+     * @static 

+     */

+	public static function set($key,$value){

+		$keys = explode('.', $key);

+		$group_name = array_shift($keys);

+		$group = Config::get_group($group_name);

+		$subgroup = & $group;

+		

+		foreach($keys as $i => $key) {

+		

+			if ($i == count($keys) - 1) {

+			

+				$subgroup[$key] = $value;

+				

+			} else {

+			

+				if(!isset($subgroup[$key])||!is_array($subgroup[$key]))

+					$subgroup[$key]=array();

+				$subgroup = & $subgroup[$key];

+				

+			}

+		}

+		

+		Config::$groups[$group_name]['options'] = $group;

+	}

+	

+	/**

+     * Writes a configuration group back to the file it was loaded from

+     * 

+     * @param string    $group    Name of the group to write

+     * @access public    

+     * @static 

+     */

+	public static function write($group){

+		Config::get_group($group);

+		$group=Config::$groups[$group];

+		file_put_contents($group['file'],"<?php\r\nreturn ".var_export($group['options'],true).";");

+	}

+

 }
\ No newline at end of file