Fix some stuff with logins and permissions, add tags to the mode.

data/model.py

@@ -1,8 +1,7 @@
 import bcrypt
 import logging
 
-from database import (User, Repository, Image, RepositoryImage, AccessToken,
-                      RepositoryPermission, Visibility, Role)
+from database import *
 
 
 logger = logging.getLogger(__name__)
@@ -111,6 +110,52 @@ def get_repository_images(namespace_name, repository_name):
                       Repository.namespace == namespace_name)
 
 
+def list_repository_tags(namespace_name, repository_name):
+  select = RepositoryTag.select(RepositoryTag, Image)
+  with_repo = select.join(Repository)
+  with_image = with_repo.switch(RepositoryTag).join(Image)
+  return joined.where(Repository.name == repository_name and
+                      Repository.namespace == namespace_name)
+
+
+def get_tag_image(namespace_name, repository_name, tag_name):
+  joined = Image.select().join(RepositoryTag).join(Repository)
+  return joined.where(Repository.name == repository_name and
+                      Repository.namespace == namespace_name and
+                      RepositoryTag.name == tag_name)
+
+
+def create_or_update_tag(namespace_name, repository_name, tag_name,
+                         tag_image_id):
+  repo = Repository.get(Repository.name == name and
+                        Repository.namespace == namespace)
+  image = Image.get(Image.image_id == tag_image_id)
+
+  try:
+    tag = RepositoryTag.get(RepositoryTag.repository == repo and
+                            RepositoryTag.tag_name == tag_name)
+    tag.image = image
+    tag.save()
+  except RepositoryTag.DoesNotExist:
+    tag = RepositoryTag.create(repository=repo, image=image, name=tag_name)
+
+  return tag
+
+
+def delete_tag(namespace_name, repository_name, tag_name):
+  repo = Repository.get(Repository.name == name and
+                        Repository.namespace == namespace)
+  tag = RepositoryTag.get(RepositoryTag.repository == repo and
+                          RepositoryTag.tag_name == tag_name)
+  tag.delete_instance()
+
+
+def delete_all_repository_tags(namespace_name, repository_name):
+  repo = Repository.get(Repository.name == name and
+                        Repository.namespace == namespace)
+  RepositoryTag.delete().where(RepositoryTag.repository == repo)
+
+
 def create_access_token(repository, user):
   new_token = AccessToken.create(user=user, repository=repository)
   return new_token