PW-567 add the old canvas formula

api/models/contract_customer.py

@@ -1,9 +1,24 @@
+# coding=UTF-8
+
+from flask_sqlalchemy import BaseQuery
 from api import db
 
 
+class ContractCustomerQuery(BaseQuery):
+
+    def reseller_store(self, url, territory):
+        return self.filter(
+            ContractCustomer.dealerstore == True,
+            ContractCustomer.dealerurl == url,
+            ContractCustomer.country == territory).first()
+
+
 class ContractCustomer(db.Model):
+
     __tablename__ = 'contract_customers'
 
+    query_class = ContractCustomerQuery
+
     id = db.Column('contractcustomerid', db.Integer, primary_key=True)
     country = db.Column(db.String(2))
     pricepremium = db.Column(db.Numeric, nullable=False, default=0)