[update] Remove foreign key constraints

app/models/account.py

@@ -6,13 +6,22 @@ class Account(db.Model):
     __table_args__ = {'schema': 'flask_app'} 
 
     id = db.Column(db.String(50), primary_key=True)  
-    customer_id = db.Column(db.String(50), db.ForeignKey('customer.id'), nullable=False)
+    customer_id = db.Column(db.String(50), nullable=False)
     account_type = db.Column(db.String(50))
     status = db.Column(db.String(20), default='active')
     lien_amount = db.Column(db.Float, default=0.0)
     created_at = db.Column(db.DateTime, default=datetime.utcnow)
     updated_at = db.Column(db.DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
 
+    # Database relationship
+    # customer = db.relationship(
+    #     'Customer',
+    #     primaryjoin='Account.customer_id == Customer.id',
+    #     backref='accounts',
+    #     foreign_keys=[customer_id],
+    #     viewonly=True
+    # )
+
     def __repr__(self):
         return f'<Account {self.id}>'