Rename oci_model to appr_model

data/appr_model/package.py

@@ -0,0 +1,48 @@
+from cnr.models.package_base import get_media_type, manifest_media_type
+from peewee import prefetch
+
+
+from data import model
+from data.database import Repository, Namespace, Tag, ManifestListManifest
+from data.appr_model import tag as tag_model
+
+
+def list_packages_query(namespace=None, media_type=None, search_query=None, username=None):
+  """ List and filter repository by search query. """
+  fields = [model.repository.SEARCH_FIELDS.name.name]
+
+  if search_query is not None:
+    repositories = model.repository.get_app_search(search_query,
+                                                   username=username,
+                                                   search_fields=fields,
+                                                   limit=50)
+    if not repositories:
+      return []
+
+    repo_query = (Repository
+                  .select(Repository, Namespace.username)
+                  .join(Namespace, on=(Repository.namespace_user == Namespace.id))
+                  .where(Repository.id << [repo.id for repo in repositories]))
+  else:
+    repo_query = (Repository
+                  .select(Repository, Namespace.username)
+                  .join(Namespace, on=(Repository.namespace_user == Namespace.id))
+                  .where(Repository.visibility == model.repository.get_public_repo_visibility(),
+                         Repository.kind == Repository.kind.get_id('application')))
+
+  if namespace:
+    repo_query = (repo_query
+                  .where(Namespace.username == namespace))
+
+  tag_query = (Tag
+               .select()
+               .where(Tag.tag_kind == Tag.tag_kind.get_id('release'))
+               .order_by(Tag.lifetime_start))
+
+  if media_type:
+    tag_query = tag_model.filter_tags_by_media_type(tag_query, media_type)
+
+  tag_query = tag_model.tag_alive_oci(tag_query)
+  query = prefetch(repo_query, tag_query)
+
+  return query