ExpressionBuilder in and notIn methods

lib/Doctrine/DBAL/Query/Expression/ExpressionBuilder.php

@@ -249,6 +249,32 @@ public function like($x, $y)
         return $this->comparison($x, 'LIKE', $y);
     }
 
+    /**
+     * Creates a IN () comparison expression with the given arguments.
+     *
+     * @param string $x field in string format to be inspected by IN() comparison.
+     * @param array $y Array of values to be used by IN() comparison.
+     *
+     * @return string
+     */
+    public function in($x, array $y)
+    {
+        return $this->comparison($x, 'IN', '('.implode(', ', $y).')');
+    }
+
+    /**
+     * Creates a NOT IN () comparison expression with the given arguments.
+     *
+     * @param string $x field in string format to be inspected by NOT IN() comparison.
+     * @param array $y Array of values to be used by NOT IN() comparison.
+     *
+     * @return string
+     */
+    public function notIn($x, array $y)
+    {
+        return $this->comparison($x, 'NOT IN', '('.implode(', ', $y).')');
+    }
+
     /**
      * Quotes a given input parameter.
      *

tests/Doctrine/Tests/DBAL/Query/Expression/ExpressionBuilderTest.php

@@ -198,4 +198,14 @@ public function testIsNotNull()
     {
         $this->assertEquals('u.updated IS NOT NULL', $this->expr->isNotNull('u.updated'));
     }
+
+    public function testIn()
+    {
+        $this->assertEquals('u.groups IN (1, 3, 4, 7)', $this->expr->in('u.groups', array(1,3,4,7)));
+    }
+
+    public function testNotIn()
+    {
+        $this->assertEquals('u.groups NOT IN (1, 3, 4, 7)', $this->expr->notIn('u.groups', array(1,3,4,7)));
+    }
 }