bug symfony#20499 [Doctrine][Form] support large integers (xabbuh)

This PR was merged into the 2.7 branch.

Discussion
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[Doctrine][Form] support large integers

| Q             | A
| ------------- | ---
| Branch?       | 2.7
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | symfony#15642
| License       | MIT
| Doc PR        | n/a

Commits
-------

6954a07 [Doctrine][Form] support large integers

Author: fabpot

src/Symfony/Bridge/Doctrine/Form/ChoiceList/ORMQueryBuilderLoader.php

@@ -104,7 +104,7 @@ public function getEntitiesByIds($identifier, array $values)
             // Filter out non-integer values (e.g. ""). If we don't, some
             // databases such as PostgreSQL fail.
             $values = array_values(array_filter($values, function ($v) {
-                return (string) $v === (string) (int) $v;
+                return (string) $v === (string) (int) $v || ctype_digit($v);
             }));
         } elseif ('guid' === $metadata->getTypeOfField($identifier)) {
             $parameterType = Connection::PARAM_STR_ARRAY;

src/Symfony/Bridge/Doctrine/Tests/Form/ChoiceList/ORMQueryBuilderLoaderTest.php

@@ -87,7 +87,7 @@ public function testFilterNonIntegerValues()
 
         $query->expects($this->once())
             ->method('setParameter')
-            ->with('ORMQueryBuilderLoader_getEntitiesByIds_id', array(1, 2, 3), Connection::PARAM_INT_ARRAY)
+            ->with('ORMQueryBuilderLoader_getEntitiesByIds_id', array(1, 2, 3, '9223372036854775808'), Connection::PARAM_INT_ARRAY)
             ->willReturn($query);
 
         $qb = $this->getMockBuilder('Doctrine\ORM\QueryBuilder')
@@ -103,7 +103,7 @@ public function testFilterNonIntegerValues()
             ->from('Symfony\Bridge\Doctrine\Tests\Fixtures\SingleIntIdEntity', 'e');
 
         $loader = new ORMQueryBuilderLoader($qb);
-        $loader->getEntitiesByIds('id', array(1, '', 2, 3, 'foo'));
+        $loader->getEntitiesByIds('id', array(1, '', 2, 3, 'foo', '9223372036854775808'));
     }
 
     public function testEmbeddedIdentifierName()