added lead field to shout, new table event (#71)

* added lead field to shout, new table event

* repurposed unused notifications table

orm/notification.py

@@ -1,13 +1,13 @@
-from sqlalchemy import Column, String, JSON as JSONType
-
+from datetime import datetime
+from sqlalchemy import Column, String, JSON, ForeignKey, DateTime, Boolean
 from base.orm import Base
 
 
 class Notification(Base):
     __tablename__ = "notification"
 
-    kind = Column(String, unique=True, primary_key=True)
-    template = Column(String, nullable=False)
-    variables = Column(JSONType, nullable=True)  # [ <var1>, .. ]
-
-    # looks like frontend code
+    user = Column(ForeignKey("user.id"), index=True)
+    createdAt = Column(DateTime, nullable=False, default=datetime.now, index=True)
+    seen = Column(Boolean, nullable=False, default=False, index=True)
+    type = Column(String, nullable=False)
+    data = Column(JSON, nullable=True)