Created login functinality

controllers/database/database.py

@@ -1,4 +1,5 @@
 from abc import ABC, abstractmethod
+from typing import Mapping, Any 
 import sqlite3
 
 class DatabaseController(ABC):
@@ -14,6 +15,12 @@ class DatabaseController(ABC):
                 self._conn.close()
             print(e)
 
+    def new_instance(self, of: type, with_fields: Mapping[str, Any]):
+        obj = of.__new__(of)
+        for attr, value in with_fields.items():
+            setattr(obj, attr, value)
+        return obj
+    
     @abstractmethod
     def create(self):
         pass

controllers/database/user.py

@@ -1,30 +1,48 @@
 from .database import DatabaseController
 from models.users.user import User
+from models.users.customer import Customer
 
 class UserController(DatabaseController):
+    FIELDS = ['id', 'username', 'password', 'firstName', 'lastName', 'email', 'phone', 'role']
 
     def __init__(self):
         super().__init__()
 
     def create(self, user: User):
         params = [
+            user.username,
+            user.password,
             user.firstName,
             user.lastName,
             user.email,
             user.phone,
-            user.password,
             user.role
         ]
 
         self._conn.execute(
-            "INSERT INTO Users (first_name, last_name, email, phone, password, role) VALUES (?, ?, ?, ?, ?, ?)",
+            "INSERT INTO Users (username, password, first_name, last_name, email, phone, role) VALUES (?, ?, ?, ?, ?, ?, ?)",
             params
         )
         self._conn.commit()
-        user.login()
 
-    def read(self):
-        print("Doing work")
+    def read(self, username: str) -> User | None:
+        params = [
+            username
+        ]
+
+        cursor = self._conn.execute(
+            "SELECT * FROM Users WHERE Username = ?",
+            params
+        )
+        row = cursor.fetchone()
+
+        if row != None:
+            params = dict(zip(self.FIELDS, row))
+            obj = self.new_instance(Customer, params)
+            print(obj.__dict__)
+            return obj
+        
+        return None
 
     def update(self):
         print("Doing work")