From e37af6f99ddf4d68f21d47ed996a11888b22ca29 Mon Sep 17 00:00:00 2001
From: David Grudl <david@grudl.com>
Date: Wed, 16 Feb 2011 18:01:22 +0100
Subject: [PATCH] added IDibiVariable

---
 dibi/libs/DibiTranslator.php |  3 +++
 dibi/libs/interfaces.php     | 11 +++++++++++
 2 files changed, 14 insertions(+)

diff --git a/dibi/libs/DibiTranslator.php b/dibi/libs/DibiTranslator.php
index 6737f844..372c7b12 100644
--- a/dibi/libs/DibiTranslator.php
+++ b/dibi/libs/DibiTranslator.php
@@ -439,6 +439,9 @@ final class DibiTranslator extends DibiObject
 		} elseif ($value instanceof DateTime) {
 			return $this->driver->escape($value, dibi::DATETIME);
 
+		} elseif ($value instanceof IDibiVariable) {
+			return (string) $value->toSql();
+
 		} else {
 			$this->hasError = TRUE;
 			return '**Unexpected ' . gettype($value) . '**';
diff --git a/dibi/libs/interfaces.php b/dibi/libs/interfaces.php
index 6a42c15d..1c0c41b4 100644
--- a/dibi/libs/interfaces.php
+++ b/dibi/libs/interfaces.php
@@ -25,6 +25,17 @@ interface IDataSource extends Countable, IteratorAggregate
 
 
 
+/**
+ * Object that is able to generate SQL.
+ * @package dibi
+ */
+interface IDibiVariable
+{
+
+	function toSql();
+
+}
+
 
 
 /**