table change

app/models/transaction.py

@@ -4,8 +4,13 @@ from sqlalchemy.exc import IntegrityError
 
 class Transaction(db.Model):
     __tablename__ = 'transactions'
-
-    id = db.Column(db.String(50), primary_key=True)
+    id =db.db.Column(
+        db.Integer,
+        primary_key=True,
+        autoincrement=True,
+    )
+    #id = db.Column(db.Int, primary_key=True)
+    transaction_id = db.Column(db.String(50), nullable=False)
     account_id = db.Column(db.String(50), nullable=False)
     type = db.Column(db.String(50), nullable=False)
     channel = db.Column(db.String(50), nullable=False)
@@ -22,7 +27,7 @@ class Transaction(db.Model):
             raise ValueError("Duplicate Transaction")
 
         transaction = cls(
-            id=id,
+            transaction_id=id,
             account_id=account_id,
             type=type,
             channel=channel