Question

I have the following get_db() function that I use to get my SQLite database:

def get_db():
    top = _app_ctx_stack.top
    if not hasattr(top, 'sqlite_db'):
        top.sqlite_db = sqlite3.connect(app.config['DATABASE'])
    return top.sqlite_db

I believe i ma not using Python SQLite cursor here. If I do the following:

db = get_db()
db.execute('DELETE FROM table_name WHERE id=3')
db.commit()

How would I check if the ID passed in DELETE exists? I tried using rowcount in sqlite3.Cursor but that does not work with the way I am retrieving my database here.

How would I check for that? I need it to return 404 if the the ID passed does not exist.

Thanks

Answer 1

Why dont you query the ID first and throw 404 if does not exist. Something like:

cur = g.db.query('select * from table_name where id=3')
if cur.rowcount <= 0:
*    abort(404)
''Run delete command here''