#2 Added ability for user to login as seller and added test to verify functionality

controllers/database/database.py

@@ -26,6 +26,10 @@ class DatabaseController(ABC):
                 self._conn.close()
             print(e)
 
+    def __del__(self):
+          if self._conn != None:
+            self._conn.close()
+
     """ Takes a dictionary of fields and returns the object 
         with those fields populated """
     def new_instance(self, of: type, with_fields: Mapping[str, Any]):

controllers/database/user.py

@@ -1,6 +1,7 @@
 from .database import DatabaseController
 from models.users.user import User
 from models.users.customer import Customer
+from models.users.seller import Seller
 
 class UserController(DatabaseController):
     FIELDS = ['id', 'username', 'password', 'firstName', 'lastName', 'email', 'phone', 'role']
@@ -38,7 +39,13 @@ class UserController(DatabaseController):
 
         if row != None:
             params = dict(zip(self.FIELDS, row))
-            obj = self.new_instance(Customer, params)
+
+            # Is user a seller
+            type = Customer
+            if row[7] == "Seller":
+                type = Seller
+                
+            obj = self.new_instance(type, params)
             return obj
         
         return None