Issue #1823306 by mkalkbrenner, p-neyens, webflo, swentel, zuuperman: Language code is missing from $context when hook_field_attach_view_alter() is invoked from field_view_field()

CHANGELOG.txt

@@ -1,6 +1,8 @@
 
 Drupal 7.36, xxxx-xx-xx (development version)
 -----------------------
+- Fixed missing language code in hook_field_attach_view_alter() when it is
+  invoked from field_view_field().
 - Stopped sending ETag and Last-Modified headers for uncached page requests,
   since they break caching for certain Varnish and Nginx configurations.
 - Changed the Simpletest module to allow PSR-4 test classes to be used in

modules/field/field.module

@@ -894,6 +894,7 @@ function field_view_field($entity_type, $entity, $field_name, $display = array()
       'entity' => $entity,
       'view_mode' => '_custom',
       'display' => $display,
+      'language' => $langcode,
     );
     drupal_alter('field_attach_view', $result, $context);
 

modules/field/tests/field.test

@@ -2206,11 +2206,12 @@ class FieldDisplayAPITestCase extends FieldTestCase {
         'alter' => TRUE,
       ),
     );
-    $output = field_view_field('test_entity', $this->entity, $this->field_name, $display);
+    $output = field_view_field('test_entity', $this->entity, $this->field_name, $display, LANGUAGE_NONE);
     $this->drupalSetContent(drupal_render($output));
     $setting = $display['settings']['test_formatter_setting_multiple'];
     $this->assertNoText($this->label, 'Label was not displayed.');
     $this->assertText('field_test_field_attach_view_alter', 'Alter fired, display passed.');
+    $this->assertText('field language is ' . LANGUAGE_NONE, 'Language is placed onto the context.');
     $array = array();
     foreach ($this->values as $delta => $value) {
       $array[] = $delta . ':' . $value['value'];

modules/field/tests/field_test.module

@@ -220,6 +220,10 @@ function field_test_field_attach_view_alter(&$output, $context) {
   if (!empty($context['display']['settings']['alter'])) {
     $output['test_field'][] = array('#markup' => 'field_test_field_attach_view_alter');
   }
+
+  if (isset($output['test_field'])) {
+    $output['test_field'][] = array('#markup' => 'field language is ' . $context['language']);
+  }
 }
 
 /**