Load DB classes based on support

Reorganized db class loading, improvements to settings class.

.gitignore

@@ -1,3 +1,5 @@
 # Ignore the stupid .DS_Store files
 *.DS_Store
+settings.json
+errors.txt
 

src/common/db_pdo.php

@@ -0,0 +1,111 @@
+<?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 
+ */
+
+// --------------------------------------------------------------------------
+
+/**
+ * Base Database class
+ *
+ * Extends PDO to simplify cross-database issues
+ */
+class DB_PDO extends PDO {
+
+	protected $statement;
+
+	function __construct($dsn, $username=NULL, $password=NULL, $driver_options=array())
+	{
+		parent::__construct($dsn, $username, $password, $driver_options);
+	}
+	
+	// -------------------------------------------------------------------------
+	
+	/**
+	 * Simplifies prepared statements for database queries
+	 *
+	 * @param string $sql
+	 * @param array $data
+	 * @return mixed PDOStatement / FALSE
+	 */
+	function prepare_query($sql, $data)
+	{
+		// Prepare the sql
+		$query = $this->prepare($sql);
+		
+		if( ! is_like_array($query))
+		{
+			$this->get_last_error();
+			return FALSE;
+		}
+		
+		// Set the statement in the class variable for easy later access
+		$this->statement =& $query;
+		
+		
+		if( ! is_like_array($data))
+		{
+			trigger_error("Invalid data argument");
+			return FALSE;
+		}
+		
+		// Bind the parameters
+		foreach($data as $k => $value)
+		{
+			$res = $query->bindValue($k, $value);
+			
+			if( ! $res)
+			{
+				trigger_error("Parameter not successfully bound");
+				return FALSE;
+			}
+		}
+		
+		return $query; 
+		
+	}
+
+	// -------------------------------------------------------------------------
+
+	/**
+	 * Retreives the data from a select query
+	 *
+	 * @param PDOStatement $statement
+	 * @return array
+	 */
+	function get_query_data($statement)
+	{
+		// Execute the query
+		$statement->execute();
+
+		// Return the data array fetched
+		return $statement->fetchAll(PDO::FETCH_ASSOC);
+	}
+
+	// -------------------------------------------------------------------------
+
+	/**
+	 * Returns number of rows affected by an INSERT, UPDATE, DELETE type query
+	 *
+	 * @param PDOStatement $statement
+	 * @return int
+	 */
+	function get_rows_changed($statement)
+	{
+		// Execute the query
+		$statement->execute();
+
+		// Return number of rows affected
+		return $statement->rowCount();
+	}
+
+}
+
+// End of db_pdo.php

src/common/settings.php

@@ -39,6 +39,12 @@ class Settings {
 			$this->current = json_decode(file_get_contents($path));
 		}
 
+		// Add the DB object under the settings if it doesn't already exist
+		if( ! isset($this->current->dbs))
+		{
+			$this->current->dbs = new stdClass();
+		}
+
 	}
 
 	// --------------------------------------------------------------------------
@@ -48,7 +54,39 @@ class Settings {
 	 */
 	function __destruct()
 	{
-		file_put_contents(json_encode($this->current), BASE_DIR.'/settings.json');
+		file_put_contents(BASE_DIR.'/settings.json', json_encode($this->current));
+	}
+
+	// --------------------------------------------------------------------------
+
+	/**
+	 * Magic method to simplify isset checking for config options
+	 * 
+	 * @param string $key
+	 * @return $mixed
+	 */
+	function __get($key)
+	{
+		return (isset($this->current->{$key})) ? $this->current->{$key} : NULL;
+	}
+
+	// --------------------------------------------------------------------------
+
+	/**
+	 * Magic method to simplify setting config options
+	 * 
+	 * @param string $key
+	 * @param mixed $val
+	 */
+	function __set($key, $val)
+	{
+		//Don't allow direct db config changes
+		if($key == "dbs")
+		{
+			return FALSE;
+		}
+
+		$this->current->{$key} = $val;
 	}
 
 	// --------------------------------------------------------------------------
@@ -56,14 +94,38 @@ class Settings {
 	/**
 	 * Add a database connection
 	 *
-	 * @param string $type
+	 * @param string $name
-	 * @param string $host
+	 * @param array $params
-	 * @param string $user
-	 * @param string $pass
 	 */
-	function add_db($type, $host, $user, $pass)
+	function add_db($name, $params)
 	{
+		if(empty($this->current->dbs->{$name}))
+		{
+			$this->current->dbs->{$name} = $params;
+		}
+		else
+		{
+			return FALSE;
+		}
+	}
+
+	// --------------------------------------------------------------------------
+
+	/**
+	 * Remove a database connection
+	 * 
+	 * @param  string $name
+	 */
+	function remove_db($name)
+	{
+		if( ! isset($this->current->dbs->{$name}))
+		{
+			return FALSE;
+		}
+
+		// Remove the db name from the object
+		unset($this->current->dbs->{$name});
+	}
 
 }
-}
 // End of settings.php

src/databases/firebird.php

@@ -12,12 +12,6 @@
 
 // --------------------------------------------------------------------------
 
-// Test for support
-if( ! function_exists('ibase_connect'))
-{
-	return FALSE;
-}
-
 /**
  * Firebird Database class
  * 

src/databases/mysql.php

@@ -12,12 +12,6 @@
 
  // --------------------------------------------------------------------------
 
-// Test for support
-if( ! in_array('mysql', pdo_drivers()))
-{
-	return FALSE;
-}
-
  /**
   * MySQL specific class
   *
@@ -27,7 +21,9 @@ class MySQL extends DB_PDO {
 
 	function __construct($dsn, $username=null, $password=null, $options=array())
 	{
-		parent::__construct($dsn, $username, $password, $options);
+		parent::__construct("mysql:$dsn", $username, $password, $options);
+
+
 	}
 
 	/**

src/databases/odbc.php

@@ -12,12 +12,6 @@
 
  // --------------------------------------------------------------------------
 
-// Test for support
-if( ! in_array('odbc', pdo_drivers()))
-{
-	return FALSE;
-}
-
  /**
   * ODBC Database Driver
   *
@@ -29,7 +23,7 @@ class ODBC extends DB_PDO {
 
 	function __construct($dsn, $username=null, $password=null, $options=array())
 	{
-		parent::__construct($dsn, $username, $password, $options);
+		parent::__construct("odbc:$dsn", $username, $password, $options);
 	}
 
 }

src/databases/pgsql.php

@@ -12,12 +12,6 @@
 
 // --------------------------------------------------------------------------
 
-// Test for support
-if( ! in_array('pgsql', pdo_drivers()))
-{
-	return FALSE;
-}
-
 /**
  * PostgreSQL specifc class
  *
@@ -27,7 +21,7 @@ class pgSQL extends DB_PDO {
 
 	function __construct($dsn, $username=null, $password=null, $options=array())
 	{
-		parent::__construct($dsn, $username, $password, $options);
+		parent::__construct("pgsql:$dsn", $username, $password, $options);
 	}
 
 	/**

src/databases/sqlite.php

@@ -12,12 +12,6 @@
 
 // --------------------------------------------------------------------------
 
-// Test for support
-if( ! in_array('sqlite', pdo_drivers()))
-{
-	return FALSE;
-}
-
 /**
  * SQLite specific class 
  *
@@ -25,9 +19,25 @@ if( ! in_array('sqlite', pdo_drivers()))
  */
 class SQLite extends DB_PDO {
 
+	/**
+	 * Static function to simply creating dsn for the current database driver
+	 * 
+	 * @return SQLite object
+	 */
+	static function connect()
+	{
+		
+	}
+
+	/**
+	 * Open SQLite Database
+	 * 
+	 * @param string $dsn 
+	 */
 	function __construct($dsn)
 	{
-		parent::__construct($dsn);
+		// DSN is simply `sqlite:/path/to/db`
+		parent::__construct("sqlite:{$dsn}");
 	}
 
 	/**
@@ -37,7 +47,23 @@ class SQLite extends DB_PDO {
 	 */
 	function truncate($table)
 	{
-		
+		// SQLite has a TRUNCATE optimization,
+		// but no support for the actual command.
+		$sql = "DELETE FROM {$table}";
+		$this->query($sql);
 	}
 
+	/**
+	 * Create an sqlite database file
+	 * 
+	 * @param  $path
+	 */
+	function create_db($path)
+	{
+		// Create the file if it doesn't exist
+		if( ! file_exists($path))
+		{
+			touch($path);
+		}
+	}
 }

src/index.php

@@ -20,8 +20,17 @@
 
 // --------------------------------------------------------------------------
 
+// Suppress errors that php-gtk puts out
 error_reporting(-1 & ~(E_STRICT | E_DEPRECATED));
 
+// Set the stupid timezone so PHP shuts up.
+date_default_timezone_set('GMT');
+
+// Set the current directory as the base for included files
+define('BASE_DIR', dirname(__FILE__));
+
+// --------------------------------------------------------------------------
+
 /**
  * Log fatal errors
  */
@@ -42,14 +51,24 @@ function log_fatal()
 
 register_shutdown_function('log_fatal');
 
+// --------------------------------------------------------------------------
+
 // Make sure php-gtk works
 if ( ! class_exists('gtk')) 
 {
-	die("Please load the php-gtk2 module in your php.ini\r\n");
+	trigger_error("PHP-gtk not found. Please load the php-gtk2 module in your php.ini", E_USER_ERROR);
+
+	die();
 }
 
-// Set the stupid timezone so PHP shuts up.
+// Make sure pdo exists
-date_default_timezone_set('GMT');
+if( ! class_exists('pdo'))
+{
+	trigger_error("PHP support for PDO is required.", E_USER_ERROR);
+	die();
+}
+
+// --------------------------------------------------------------------------
 
 // Bulk loading wrapper workaround for PHP < 5.4
 function do_include($path)
@@ -57,16 +76,35 @@ function do_include($path)
 	require_once($path);
 }
 
-define('BASE_DIR', dirname(__FILE__));
-
-// Load modules
 // Load everything so that we don't have to do requires later
 {
 	array_map('do_include', glob(BASE_DIR . "/common/*.php"));
-	array_map('do_include',  glob(BASE_DIR . "/databases/*.php"));
 	array_map('do_include',  glob(BASE_DIR . "/windows/*.php"));
 }
 
+// --------------------------------------------------------------------------
+
+// Load db classes based on capability
+$path = BASE_DIR . "/databases/";
+
+foreach(pdo_drivers() as $d)
+{
+	$file = "{$path}{$d}.php";
+	
+	if(is_file($file))
+	{
+		require_once($file);
+	}
+}
+
+// Load Firebird if there is support
+if(function_exists('ibase_connect'))
+{
+	require_once("{$path}firebird.php");
+}
+
+// --------------------------------------------------------------------------
+
 // Create the main window
 $wnd = new Main();
 

src/windows/add_db.php

@@ -17,13 +17,15 @@
  */
 class Add_DB extends GtkWindow {
 
-	var $conn, $dbtype, $host, $user, $password, $database;
+	var $conn, $dbtype, $host, $user, $password, $database, $settings;
 	
 	function __construct()
 	{
 		parent::__construct();
 
-		$this->set_title("OpenSQLManager - Add Database Connection");
+		$this->settings = new Settings();
+
+		$this->set_title("Add Database Connection");
 
 		// Add the Vbox, and show the window
 		$this->add($this->_layout());
@@ -114,6 +116,11 @@ class Add_DB extends GtkWindow {
 				continue;
 			}
 
+			// Replace default capitalization with something that looks better.
+			$d = str_replace("sql", "SQL", $d);
+			$d = str_ireplace("pg", "Postgre", $d);
+			$d = ucfirst($d);
+
 			$drivers[] = $d;
 		}