Fixes issue #842: Active Records insert fails in MSSQL if a column ha…

…s a default value of (NULL)

CHANGELOG

@@ -24,6 +24,7 @@ Version 1.1.11 work in progress
 - Bug #697: Fixed WSDLGenerator now generating proper namespace for certain complexTypes (BBoom)
 - Bug #749: CActiveRecord::refresh() did not work in afterSave() for new records, will now always refresh, when db entry exists (cebe)
 - Bug #769: Fixed the bug that $.fn.yiiGridView.getSelection was not working always if a custom CGridView::template was used (mdomba)
+- Bug #842: Active Records insert fails in MSSQL if a column has a default value of (NULL) (c-schmitz)
 - Bug: Fixed CMenu::isItemActive() to work properly when there is a hash in the item's url (SlKelevro)
 - Bug: Added missing return statement to CAuthItem->revoke() (mdomba)
 - Bug: CHtml::resolveValue() ignoring of array elements accessor at the beginning of the $attribute argument now works properly (resurtm)

framework/db/schema/mssql/CMssqlColumnSchema.php

@@ -19,6 +19,23 @@
  */
 class CMssqlColumnSchema extends CDbColumnSchema
 {
+
+     /**
+     * Initializes the column with its DB type and default value.
+     * This sets up the column's PHP type, size, precision, scale as well as default value.
+     * @param string $dbType the column's DB type
+     * @param mixed $defaultValue the default value
+     */
+     public function init($dbType, $defaultValue)
+     {
+        if ($defaultValue=='(NULL)')
+        {
+            $defaultValue=null;
+        }
+        parent::init($dbType, $defaultValue);
+     }
+
+
 	/**
 	 * Extracts the PHP type from DB type.
 	 * @param string $dbType DB type