Update atst to atat

atat/models/permission_set.py

@@ -0,0 +1,21 @@
+from sqlalchemy import String, Column
+from sqlalchemy.dialects.postgresql import ARRAY
+
+from atat.models.base import Base
+import atat.models.mixins as mixins
+import atat.models.types as types
+
+
+class PermissionSet(Base, mixins.TimestampsMixin):
+    __tablename__ = "permission_sets"
+
+    id = types.Id()
+    name = Column(String, index=True, unique=True, nullable=False)
+    display_name = Column(String, nullable=False)
+    description = Column(String, nullable=False)
+    permissions = Column(ARRAY(String), index=True, server_default="{}", nullable=False)
+
+    def __repr__(self):
+        return "<PermissionSet(name='{}', description='{}', permissions='{}', id='{}')>".format(
+            self.name, self.description, self.permissions, self.id
+        )