postgres default fix

app/core/models/content/user_content.py

@@ -3,6 +3,7 @@ from sqlalchemy import Column, BigInteger, Integer, String, ForeignKey, DateTime
 from sqlalchemy.orm import relationship
 from app.core.models.base import AlchemyBase
 from app.core.models.content.indexation_mixins import UserContentIndexationMixin
+from datetime import datetime
 
 
 class UserContent(AlchemyBase, UserContentIndexationMixin):
@@ -14,12 +15,12 @@ class UserContent(AlchemyBase, UserContentIndexationMixin):
     owner_address = Column(String(1024), nullable=True)
     code_hash = Column(String(128), nullable=True)
     data_hash = Column(String(128), nullable=True)
-    updated = Column(DateTime, nullable=False, default=0)
+    updated = Column(DateTime, nullable=False, default=datetime.utcnow, onupdate=datetime.utcnow)
 
     content_id = Column(Integer, ForeignKey('node_storage.id'), nullable=True)
-    created = Column(DateTime, nullable=False, default=0)
+    created = Column(DateTime, nullable=False, default=datetime.utcnow)
 
-    meta = Column(JSON, nullable=False, default={})
+    meta = Column(JSON, nullable=False, default=dict)
     user_id = Column(Integer, ForeignKey('users.id'), nullable=False)
     wallet_connection_id = Column(Integer, ForeignKey('wallet_connections.id'), nullable=True)
     status = Column(String(64), nullable=False, default='active')  # 'transaction_requested'
@@ -41,9 +42,8 @@ class UserAction(AlchemyBase):
     to_address = Column(String(1024), nullable=True)
     from_address = Column(String(1024), nullable=True)
     status = Column(String(128), nullable=True)
-    meta = Column(JSON, nullable=False, default={})
-    created = Column(DateTime, nullable=False, default=0)
+    meta = Column(JSON, nullable=False, default=dict)
+    created = Column(DateTime, nullable=False, default=datetime.utcnow)
 
     user = relationship('User', uselist=False, foreign_keys=[user_id])
     content = relationship('StoredContent', uselist=False, foreign_keys=[content_id])
-