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2c96b4a5
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David Friesecký
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import sqlite3
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from sqlite3 import Error
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from ..constants import DATABASE_FILE
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from ..dao.repository import IRepository
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class DBManager(IRepository):
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def create(self, sql: str, *args) -> bool:
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conn = None
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try:
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sql: str = args[0]
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values = args[1:]
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conn = sqlite3.connect(DATABASE_FILE)
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c = conn.cursor()
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c.execute(sql, values)
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conn.commit()
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c.close()
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except Error as e:
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print(e)
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return False
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finally:
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if conn:
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conn.close()
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return True
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def read(self, sql: str, item_id: int = None) -> list:
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conn = None
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try:
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conn = sqlite3.connect(DATABASE_FILE)
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c = conn.cursor()
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if item_id is not None:
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c.execute(sql, item_id)
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else:
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c.execute(sql)
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records = c.fetchall()
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c.close()
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except Error as e:
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print(e)
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return []
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finally:
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if conn:
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conn.close()
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return records
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def update(self, sql: str, item_id: int, *args) -> bool:
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conn = None
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try:
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values = list(args)
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values.append(item_id)
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conn = sqlite3.connect(DATABASE_FILE)
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c = conn.cursor()
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c.execute(sql, values)
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conn.commit()
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c.close()
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except Error as e:
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print(e)
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return False
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finally:
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if conn:
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conn.close()
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return True
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def delete(self, sql: str, item_id: int) -> bool:
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conn = None
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try:
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conn = sqlite3.connect(DATABASE_FILE)
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c = conn.cursor()
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c.execute(sql, (item_id,))
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conn.commit()
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c.close()
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except Error as e:
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print(e)
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return False
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finally:
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if conn:
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conn.close()
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return True
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