Added MEMBER OF and INSTANCE OF helpers to ExpressionBuilder

lib/Doctrine/ORM/Query/Expr.php

@@ -644,4 +644,32 @@ class Expr
     {
         return new Expr\Func('TRIM', $x);
     }
+
+
+    /**
+     * Creates an instance of MEMBER OF function, with the given arguments.
+     *
+     * @param string $x Value to be checked
+     * @param string $y Value to be checked against
+     *
+     * @return string
+     */
+    public function isMemberOf($x, $y)
+    {
+        return $x . ' MEMBER OF ' . $y;
+    }
+
+
+    /**
+     * Creates an instance of INSTANCE OF function, with the given arguments.
+     *
+     * @param string $x Value to be checked
+     * @param string $y Value to be checked against
+
+     * @return string
+     */
+    public function isInstanceOf($x, $y)
+    {
+        return $x . ' INSTANCE OF ' . $y;
+    }
 }

tests/Doctrine/Tests/ORM/Query/ExprTest.php

@@ -38,6 +38,11 @@ class ExprTest extends \Doctrine\Tests\OrmTestCase
 {
     private $_em;
 
+    /**
+     * @var Expr
+     */
+    private $_expr;
+
     protected function setUp()
     {
         $this->_em = $this->_getTestEntityManager();
@@ -271,6 +276,14 @@ class ExprTest extends \Doctrine\Tests\OrmTestCase
         $this->assertEquals('u.id IS NOT NULL', (string) $this->_expr->isNotNull('u.id'));
     }
 
+    public function testIsInstanceOfExpr() {
+        $this->assertEquals('u INSTANCE OF Doctrine\Tests\Models\Company\CompanyEmployee', (string) $this->_expr->isInstanceOf('u', 'Doctrine\Tests\Models\Company\CompanyEmployee'));
+    }
+
+    public function testIsMemberOfExpr() {
+        $this->assertEquals(':groupId MEMBER OF u.groups', (string) $this->_expr->isMemberOf(':groupId', 'u.groups'));
+    }
+
     public function testInExpr()
     {
         $this->assertEquals('u.id IN(1, 2, 3)', (string) $this->_expr->in('u.id', array(1, 2, 3)));