Solution

app/managers.py

@@ -0,0 +1,47 @@
+import sqlite3
+
+from app.models import Actor
+
+
+class ActorManager:
+ def __init__(self) -> None:
+ self._connection: sqlite3.Connection = sqlite3.connect("cinema.db")
+ self.table_name: str = "actors"
+
+ with self._connection:
+ self._connection.execute(
+ f"CREATE TABLE {self.table_name}"
+ "(id INTEGER PRIMARY KEY AUTOINCREMENT,"
+ "first_name VARCHAR(15) NOT NULL,"
+ "last_name VARCHAR(15) NOT NULL);"
+ )
+
+ def create(self, first_name: str, last_name: str) -> None:
+ with self._connection:
+ self._connection.execute(
+ f"INSERT INTO {self.table_name} (first_name, last_name)"
+ "VALUES (?, ?);",
+ (first_name, last_name),
+ )
+
+ def all(self) -> list[Actor]:
+ actor_cursor: sqlite3.Cursor = self._connection.execute(
+ "SELECT * "
+ f"FROM {self.table_name};"
+ )
+ return [Actor(*row) for row in actor_cursor]
+
+ def update(self, id: int, first_name: str, last_name: str) -> None:
+ with self._connection:
+ self._connection.execute(
+ f"UPDATE {self.table_name} "
+ "SET first_name = ?, last_name = ? "
+ "WHERE id = ?;",
+ (first_name, last_name, id),
+ )
+
+ def delete(self, id: int) -> None:
+ with self._connection:
+ self._connection.execute(
+ f"DELETE FROM {self.table_name} WHERE id = ?;", (id,)
+ )

app/models.py

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