Add timestamps to workspace

atst/models/mixins.py

@@ -0,0 +1,7 @@
+from sqlalchemy import Column, func, TIMESTAMP
+
+
+class TimestampsMixin(object):
+    time_created = Column(TIMESTAMP(timezone=True), nullable=False, server_default=func.now())
+    time_updated = Column(TIMESTAMP(timezone=True), nullable=False, server_default=func.now(), onupdate=func.current_timestamp())
+

atst/models/workspace.py

@@ -3,9 +3,10 @@ from sqlalchemy.orm import relationship
 
 from atst.models import Base
 from atst.models.types import Id
+from atst.models.mixins import TimestampsMixin
 
 
-class Workspace(Base):
+class Workspace(Base, TimestampsMixin):
     __tablename__ = "workspaces"
 
     id = Id()