1 files changed, 52 insertions, 0 deletions
diff --git a/modules/image/image.module b/modules/image/image.module
index d2d081c3e..008a36513 100644
--- a/modules/image/image.module
+++ b/modules/image/image.module
@@ -413,6 +413,58 @@ function image_image_style_delete($style) {
 }
 
 /**
+ * Implements hook_field_delete_field().
+ */
+function image_field_delete_field($field) {
+  if ($field['type'] != 'image') {
+    return;
+  }
+
+  // The value of a managed_file element can be an array if #extended == TRUE.
+  $fid = (is_array($field['settings']['default_image']) ? $field['settings']['default_image']['fid'] : $field['settings']['default_image']);
+  if ($fid && ($file = file_load($fid))) {
+    file_usage_delete($file, 'image', 'default_image', $field['id']);
+  }
+}
+
+/**
+ * Implements hook_field_update_field().
+ */
+function image_field_update_field($field, $prior_field, $has_data) {
+  if ($field['type'] != 'image') {
+    return;
+  }
+
+  // The value of a managed_file element can be an array if #extended == TRUE.
+  $fid_new = (is_array($field['settings']['default_image']) ? $field['settings']['default_image']['fid'] : $field['settings']['default_image']);
+  $fid_old = (is_array($prior_field['settings']['default_image']) ? $prior_field['settings']['default_image']['fid'] : $prior_field['settings']['default_image']);
+
+  $file_new = $fid_new ? file_load($fid_new) : FALSE;
+
+  if ($fid_new != $fid_old) {
+
+    // Is there a new file?
+    if ($file_new) {
+      $file_new->status = FILE_STATUS_PERMANENT;
+      file_save($file_new);
+      file_usage_add($file_new, 'image', 'default_image', $field['id']);
+    }
+
+    // Is there an old file?
+    if ($fid_old && ($file_old = file_load($fid_old))) {
+      file_usage_delete($file_old, 'image', 'default_image', $field['id']);
+    }
+  }
+
+  // If the upload destination changed, then move the file.
+  if ($file_new && (file_uri_scheme($file_new->uri) != $field['settings']['uri_scheme'])) {
+    $directory = $field['settings']['uri_scheme'] . '://default_images/';
+    file_prepare_directory($directory, FILE_CREATE_DIRECTORY);
+    file_move($file_new, $directory . $file_new->filename);
+  }
+}
+
+/**
  * Clear cached versions of a specific file in all styles.
  *
  * @param $path