Added transaction functions to firebird driver

src/databases/firebird.php

@@ -19,7 +19,7 @@
  */
 class firebird {
 
-	protected $conn, $statement;
+	protected $conn, $statement, $trans;
 	private $esc_char = "''";
 	
 	/**
@@ -212,6 +212,41 @@ SQL;
 		}
 
 		return $count;
+	}
+	
+	/**
+	 * Start a database transaction
+	 * 
+	 * @return resource
+	 */
+	function beingTransaction()
+	{
+		if($this->trans = ibase_trans($this->conn) !== null)
+		{
+			return TRUE;
+		}
+
+		return FALSE;
+	}
+	
+	/**
+	 * Commit a database transaction
+	 * 
+	 * @return bool
+	 */
+	function commit()
+	{
+		return ibase_commit($this->trans);
+	}
+	
+	/**
+	 * Rollback a transaction
+	 * 
+	 * @return bool
+	 */
+	function rollBack()
+	{
+		return ibase_rollback($this->trans);
 	}	 
 }
 // End of firebird.php

src/windows/add_db.php

@@ -77,7 +77,8 @@ class Add_DB extends GtkWindow {
 		// DB File
 		{
 			$filelbl = new GtkLabel("Database file");
-			$this->dbfile = new GtkFileChooserButton("Select a database file", Gtk::FILE_CHOOSER_ACTION_OPEN);
+			$this->dbfile = new GtkFileChooserButton("Select a database file",
+				Gtk::FILE_CHOOSER_ACTION_OPEN);
 			$filealign = new GtkAlignment(0, 0.5, 0, 0);
 			$filealign->add($filelbl);