removed IDibiVariable & DibiVariable, replaced with DibiLiteral

dibi/dibi.php

@@ -24,6 +24,7 @@ if (version_compare(PHP_VERSION, '5.2.0', '<')) {
 require_once dirname(__FILE__) . '/libs/interfaces.php';
 require_once dirname(__FILE__) . '/libs/DibiDateTime.php';
 require_once dirname(__FILE__) . '/libs/DibiObject.php';
+require_once dirname(__FILE__) . '/libs/DibiLiteral.php';
 require_once dirname(__FILE__) . '/libs/DibiHashMap.php';
 require_once dirname(__FILE__) . '/libs/DibiException.php';
 require_once dirname(__FILE__) . '/libs/DibiConnection.php';
@@ -43,20 +44,6 @@ if (interface_exists('Nette\Diagnostics\IBarPanel') || interface_exists('IBarPan
 
 
 
-/**
- * @deprecated
- */
-class DibiVariable extends DibiDateTime
-{
-	function __construct($val)
-	{
-		parent::__construct($val);
-		trigger_error(__CLASS__ . ' is deprecated; use class DateTime instead.', E_USER_WARNING);
-	}
-}
-
-
-
 
 
 /**

dibi/libs/DibiLiteral.php

@@ -0,0 +1,40 @@
+<?php
+
+/**
+ * This file is part of the "dibi" - smart database abstraction layer.
+ *
+ * Copyright (c) 2005 David Grudl (http://davidgrudl.com)
+ *
+ * For the full copyright and license information, please view
+ * the file license.txt that was distributed with this source code.
+ */
+
+
+
+/**
+ * SQL literal value.
+ *
+ * @author     David Grudl
+ */
+class DibiLiteral extends DibiObject
+{
+	/** @var string */
+	private $value;
+
+
+	public function __construct($value)
+	{
+		$this->value = (string) $value;
+	}
+
+
+
+	/**
+	 * @return string
+	 */
+	public function __toString()
+	{
+		return $this->value;
+	}
+
+}

dibi/libs/DibiTranslator.php

@@ -438,8 +438,8 @@ final class DibiTranslator extends DibiObject
 		} elseif ($value instanceof DateTime) {
 			return $this->driver->escape($value, dibi::DATETIME);
 
-		} elseif ($value instanceof IDibiVariable) {
+		} elseif ($value instanceof DibiLiteral) {
-			return (string) $value->toSql();
+			return (string) $value;
 
 		} else {
 			$this->hasError = TRUE;

dibi/libs/interfaces.php

@@ -23,19 +23,6 @@ interface IDataSource extends Countable, IteratorAggregate
 
 
 
-/**
- * Object that is able to generate SQL.
- * @package    dibi
- */
-interface IDibiVariable
-{
-
-	function toSql();
-
-}
-
-
-
 /**
  * dibi driver interface.
  * @package    dibi