From 040913369d26b292723420b761bb9fa23b7aacd7 Mon Sep 17 00:00:00 2001
From: Geoff Munn <geoff@silverstripe.com>
Date: Fri, 13 Feb 2009 02:37:58 +0000
Subject: [PATCH] API CHANGE: The standard ID column is now database-specific

git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/sapphire/trunk@71824 467b73ca-7a2a-4603-9d3b-597d59a354a9
---
 core/model/Database.php      |  5 +++--
 core/model/MySQLDatabase.php | 10 ++++++++++
 2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/core/model/Database.php b/core/model/Database.php
index a4ee06694..9bf40e304 100755
--- a/core/model/Database.php
+++ b/core/model/Database.php
@@ -236,8 +236,9 @@ abstract class Database extends Object {
 			$this->checkAndRepairTable($table);
 		}
 
-		$this->requireField($table, "ID", "int(11) not null auto_increment");
-
+		//DB ABSTRACTION: we need to convert this to a db-specific version:
+		$this->requireField($table, 'ID', DB::getConn()->IdColumn());
+		
 		// Create custom fields
 		if($fieldSchema) {
 			foreach($fieldSchema as $fieldName => $fieldSpec) {
diff --git a/core/model/MySQLDatabase.php b/core/model/MySQLDatabase.php
index 756000eb4..912c94b74 100644
--- a/core/model/MySQLDatabase.php
+++ b/core/model/MySQLDatabase.php
@@ -573,6 +573,16 @@ class MySQLDatabase extends Database {
 		return 'varchar(' . $values['precision'] . ') character set utf8 collate utf8_general_ci';
 	}
 	
+	/**
+	 * This returns the column which is the primary key for each table
+	 * In Postgres, it is a SERIAL8, which is the equivalent of an auto_increment
+	 *
+	 * @return string
+	 */
+	function IdColumn(){
+		return 'int(11) not null auto_increment';
+	}
+	
 	/**
 	 * Returns true if the given table is exists in the current database 
 	 * NOTE: Experimental; introduced for db-abstraction and may changed before 2.4 is released.