在python中使用peewee数据库出现“没有这样的列”错误

Question

I am making a peewee database. In my python code I try to retrieve rows from the model that may be empty:

player_in_db = Player.get(Player.name == player.name_display_first_last)

Player is the name of the model

name is a column in Player defined:

name = CharField(max_length=25)

player.name_display_first_last is a string

I then check to see if there are any rows in the player_in_db list:

if player_in_db:

I then get an error that says:

sqlite3.OperationalError: no such column: t1.name

I can give you more of the error message if you need, but it's long and references a lot of peewee packages.

Answer 1

You probably created your table without the name column. It's incredibly easy to check. Just open the sqlite3 shell and run:

sqlite3> .schema

Or you can use Peewee's own introspection methods:

db.get_columns('player')

Your model needs to (obviously) correspond to the schema in your actual database...

Answer 2

您的表“玩家”很可能没有定义主键。