From e07094adad56de548788226ccd252a2436f41e40 Mon Sep 17 00:00:00 2001
From: Ingo Schommer <ingo@silverstripe.com>
Date: Thu, 8 Jan 2009 04:12:54 +0000
Subject: [PATCH] ENHANCEMENT Added SQLQuery->filtersOnFK() (merged from
 branches/translatable in r64523, thanks wakeless!)

git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/sapphire/branches/2.3@69895 467b73ca-7a2a-4603-9d3b-597d59a354a9
---
 core/model/SQLQuery.php | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/core/model/SQLQuery.php b/core/model/SQLQuery.php
index 98065acd8..46227deee 100755
--- a/core/model/SQLQuery.php
+++ b/core/model/SQLQuery.php
@@ -437,6 +437,17 @@ class SQLQuery extends Object {
 		);
 	}
 	
+	/**
+	 * Checks whether this query is filtering on a foreign key, ie finding a has_many relationship
+	 *
+	 * @return boolean
+	 */
+	function filtersOnFK() { 
+		return ($this->where &&
+		(strpos($this->where[0], "ID` = ") || (strpos($this->where[0], "ID = ") > 0))
+		);
+	}
+	
 	/// VARIOUS TRANSFORMATIONS BELOW
 	
 	/**