solution

app/managers.py

@@ -0,0 +1,45 @@
+import sqlite3
+
+from typing import List
+
+from models import Actor
+
+
+class ActorManager:
+ def __init__(self) -> None:
+ self._connection = sqlite3.connect("cinema")
+ self.table_name = "Actors"
+
+ def create(self, first_name: str, last_name: str) -> None:
+ self._connection.execute(
+ f"INSERT INTO {self.table_name} (first_name, last_name)"
+ "VALUES (?, ?)",
+ (first_name, last_name)
+ )
+ self._connection.commit()
+
+ def all(self) -> List[Actor]:
+ actors_cursor = self._connection.execute(
+ f"SELECT id, first_name, last_name FROM {self.table_name}"
+ )
+ return [Actor(*row) for row in actors_cursor]
+
+ def update(self,
+ id_to_update: int,
+ new_first_name: str,
+ new_last_name: str) -> None:
+ self._connection.execute(
+ f"UPDATE {self.table_name} "
+ "SET (first_name, last_name) = (?, ?)"
+ "WHERE id = ?",
+ (new_first_name, new_last_name, id_to_update)
+ )
+ self._connection.commit()
+
+ def delete(self, id_to_delete: int) -> None:
+ self._connection.execute(
+ f"DELETE FROM {self.table_name} "
+ "WHERE id = ?",
+ (id_to_delete,)
+ )
+ self._connection.commit()

app/models.py

@@ -0,0 +1,8 @@
+from dataclasses import dataclass
+
+
+@dataclass
+class Actor:
+ id: int
+ first_name: str
+ last_name: str