Add endpoint /batch/photos/refresh_metadata.

frontends/etiquette_flask/etiquette_flask/endpoints/photo_endpoints.py

@@ -133,23 +133,38 @@ def post_batch_photos_remove_tag():
 
 # Photo metadata operations ########################################################################
 
-@site.route('/photo/<photo_id>/refresh_metadata', methods=['POST'])
 @decorators.catch_etiquette_exception
-def post_photo_refresh_metadata(photo_id):
-    '''
-    Refresh the file metadata.
-    '''
-    common.P.caches['photo'].remove(photo_id)
-    photo = common.P_photo(photo_id, response_type='json')
-    photo.reload_metadata()
+def post_photo_refresh_metadata_core(photo_ids):
+    if isinstance(photo_ids, str):
+        photo_ids = etiquette.helpers.comma_space_split(photo_ids)
+
+    photos = [common.P_photo(photo_id, response_type='json') for photo_id in photo_ids]
+
+    for photo in photos:
+        common.P.caches['photo'].remove(photo.id)
+        photo = common.P_photo(photo.id, response_type='json')
+        photo.reload_metadata(commit=False)
         if photo.thumbnail is None:
             try:
-            photo.generate_thumbnail()
+                photo.generate_thumbnail(commit=False)
             except Exception:
                 traceback.print_exc()
 
+    common.P.commit()
+
     return jsonify.make_json_response({})
 
+@site.route('/photo/<photo_id>/refresh_metadata', methods=['POST'])
+def post_photo_refresh_metadata(photo_id):
+    response = post_photo_refresh_metadata_core(photo_ids=photo_id)
+    return response
+
+@site.route('/batch/photos/refresh_metadata', methods=['POST'])
+@decorators.required_fields(['photo_ids'], forbid_whitespace=True)
+def post_batch_photos_refresh_metadata():
+    response = post_photo_refresh_metadata_core(photo_ids=request.form['photo_ids'])
+    return response
+
 # Clipboard ########################################################################################
 
 @site.route('/clipboard')