REFACTOR: Moved more functionality into database base type

controllers/database/category.py

@@ -4,6 +4,7 @@ from models.category import Category
 
 class CategoryController(DatabaseController):
     FIELDS = ['id', 'name']
+    TYPE = Category
 
     def __init__(self):
         super().__init__()
@@ -12,49 +13,21 @@ class CategoryController(DatabaseController):
         params = [
             category.name,
         ]
+        query = "INSERT INTO Categories (name) VALUES (?)"
 
-        self._conn.execute(
-            "INSERT INTO Categories (name) VALUES (?)",
-            params
-        )
-        self._conn.commit()
+        self.do(query, params)
 
     def read(self, id: int = 0) -> Category | None:
         params = [
             id
         ]
+        query = "SELECT * FROM Categories WHERE id = ?"
 
-        cursor = self._conn.execute(
-            "SELECT * FROM Categories WHERE id = ?",
-            params
-        )
-        row = cursor.fetchone()
-
-        if row is None:
-            return None
-
-        params = dict(zip(self.FIELDS, row))
-        obj = self.new_instance(Category, params)
-
-        return obj
+        return self.get_one(query, params)
 
     def read_all(self) -> list[Category] | None:
-        cursor = self._conn.execute(
-            "SELECT * FROM Categories",
-        )
-        rows = cursor.fetchall()
-
-        if rows is None:
-            return None
-
-        categories = list()
-
-        for category in rows:
-            params = dict(zip(self.FIELDS, category))
-            obj = self.new_instance(Category, params)
-            categories.append(obj)
-
-        return categories
+        query = "SELECT * FROM Categories"
+        return self.get_many(query, [])
 
     def update(self):
         print("Doing work")