Move settings class

classes/settings.php

@@ -0,0 +1,240 @@
+<?php
+/**
+ * OpenSQLManager
+ *
+ * Free Database manager for Open Source Databases
+ *
+ * @author 		Timothy J. Warren
+ * @copyright	Copyright (c) 2012
+ * @link 		https://github.com/aviat4ion/OpenSQLManager
+ * @license 	http://philsturgeon.co.uk/code/dbad-license
+ */
+
+// --------------------------------------------------------------------------
+
+/**
+ * Class for manipulating datbase connections, and program settings
+ *
+ * Use JSON for compatibility
+ */
+class Settings {
+
+	private $current;
+	private static $instance;
+
+	public static function &get_instance()
+	{
+		if( ! isset(self::$instance))
+		{
+			$name = __CLASS__;
+			self::$instance = new $name();
+		}
+
+		return self::$instance;
+	}
+
+	/**
+	 * Load the settings file - private so it can't be loaded
+	 * directly - the settings should be safe!
+	 */
+	private function __construct()
+	{
+		if ( ! defined('SETTINGS_DIR'))
+		{
+			define('SETTINGS_DIR', '.');
+		}
+
+		$path = SETTINGS_DIR.'/settings.json';
+
+		if( ! is_file($path))
+		{
+			//Create the file!
+			touch($path);
+			$this->current = new stdClass();
+		}
+		else
+		{
+			$this->current = json_decode(file_get_contents($path));
+		}
+
+		// Add the DB object under the settings if it doesn't already exist
+		if( ! isset($this->current->dbs))
+		{
+			$this->current->dbs = new stdClass();
+		}
+
+	}
+
+	// --------------------------------------------------------------------------
+
+	/**
+	 * Output the settings on destruct
+	 */
+	public function __destruct()
+	{
+		$file_string = (defined('JSON_PRETTY_PRINT'))
+			? json_encode($this->current, JSON_PRETTY_PRINT)
+			: json_encode($this->current);
+
+		file_put_contents(SETTINGS_DIR . '/settings.json', $file_string);
+	}
+
+	// --------------------------------------------------------------------------
+
+	/**
+	 * Magic method to simplify isset checking for config options
+	 *
+	 * @param string $key
+	 * @return mixed
+	 */
+	public function __get($key)
+	{
+		return (isset($this->current->{$key}) && $key != "dbs")
+			? $this->current->{$key}
+			: NULL;
+	}
+
+	// --------------------------------------------------------------------------
+
+	/**
+	 * Magic method to simplify setting config options
+	 *
+	 * @param string $key
+	 * @param mixed
+	 */
+	public function __set($key, $val)
+	{
+		//Don't allow direct db config changes
+		if($key == "dbs")
+		{
+			return FALSE;
+		}
+
+		return $this->current->{$key} = $val;
+	}
+
+	// --------------------------------------------------------------------------
+
+	/**
+	 * Add a database connection
+	 *
+	 * @param string $name
+	 * @param array $params
+	 */
+	public function add_db($name, $params)
+	{
+		// Return on bad data
+		if (empty($name) || empty($params))
+		{
+			return FALSE;
+		}
+
+		if( ! isset($this->current->dbs->{$name}))
+		{
+			$params['name'] = $name;
+
+			$this->current->dbs->{$name} = array();
+			$this->current->dbs->{$name} = $params;
+		}
+		else
+		{
+			return FALSE;
+		}
+
+		// Save the json
+		$this->__destruct();
+	}
+
+	// --------------------------------------------------------------------------
+
+	/**
+	 * Edit a database connection
+	 *
+	 * @param array $params
+	 */
+	public function edit_db($name, $params)
+	{
+		// Return on bad data
+		if (empty($name) || empty($params))
+		{
+			return FALSE;
+		}
+		
+		if (isset($this->current->dbs->{$name}) && ($name === $params['name']))
+		{
+			$this->current->dbs->{$name} = $params;
+		}
+		elseif ($name !== $params['name'])
+		{
+			unset($this->current->dbs->{$name});
+
+			if ( ! isset($this->current->dbs->{$params['name']}))
+			{
+				$this->current->dbs->{$params['name']} = $params;
+			}
+			else
+			{
+				return FALSE;
+			}
+		}
+		else
+		{
+			return FALSE;
+		}
+
+		// Save the json
+		$this->__destruct();
+
+		return TRUE;
+	}
+
+	// --------------------------------------------------------------------------
+
+	/**
+	 * Remove a database connection
+	 *
+	 * @param  string $name
+	 */
+	public function remove_db($name)
+	{
+		if( ! isset($this->current->dbs->{$name}))
+		{
+			return FALSE;
+		}
+
+		// Remove the db name from the object
+		unset($this->current->dbs->{$name});
+
+		// Save the json
+		$this->__destruct();
+	}
+
+	// --------------------------------------------------------------------------
+
+	/**
+	 * Retreive all db connections
+	 *
+	 * @return  array
+	 */
+	public function get_dbs()
+	{
+		return $this->current->dbs;
+	}
+
+	// --------------------------------------------------------------------------
+
+	/**
+	 * Retreive a specific database connection
+	 *
+	 * @param string $name
+	 * @return object
+	 */
+	public function get_db($name)
+	{
+		return (isset($this->current->dbs->{$name}))
+			? $this->current->dbs->{$name}
+			: FALSE;
+	}
+
+}
+// End of settings.php