notifier-integration

orm/notification.py

@@ -0,0 +1,41 @@
+import time
+from enum import Enum as Enumeration
+
+from sqlalchemy import JSON, Column, ForeignKey, Integer, String
+from sqlalchemy.orm import relationship
+
+from orm.author import Author
+from services.db import Base
+
+
+class NotificationEntity(Enumeration):
+    REACTION = 'reaction'
+    SHOUT = 'shout'
+    FOLLOWER = 'follower'
+
+
+class NotificationAction(Enumeration):
+    CREATE = 'create'
+    UPDATE = 'update'
+    DELETE = 'delete'
+    SEEN = 'seen'
+    FOLLOW = 'follow'
+    UNFOLLOW = 'unfollow'
+
+
+class NotificationSeen(Base):
+    __tablename__ = 'notification_seen'
+
+    viewer = Column(ForeignKey('author.id'))
+    notification = Column(ForeignKey('notification.id'))
+
+
+class Notification(Base):
+    __tablename__ = 'notification'
+
+    created_at = Column(Integer, server_default=str(int(time.time())))
+    entity = Column(String, nullable=False)
+    action = Column(String, nullable=False)
+    payload = Column(JSON, nullable=True)
+
+    seen = relationship(lambda: Author, secondary='notification_seen')