Initial commit

app/customer.py

@@ -0,0 +1,21 @@
+class Customer:
+    def __init__(self, database, customer_id=None, name=None, address=None):
+        self.database = database
+        self.customer_id = customer_id
+        if customer_id is None and name and address:
+            self.customer_id = self.database.add_customer(name, address)
+        elif customer_id:
+            self._load_customer()
+
+    def _load_customer(self):
+        details = self.database.get_customer(self.customer_id)
+        if details:
+            self.name, self.address = details[1], details[2]
+        else:
+            raise ValueError("Customer does not exist.")
+
+    def update_details(self, name, address):
+        self.database.update_customer(self.customer_id, name, address)
+
+    def delete_customer(self):
+        self.database.delete_customer(self.customer_id)