Question

尝试在Django 1.9文档中关注the example mentionned，我无法按照说明进行操作。

以下代码我坚持：

fields.py

class Hand(object):
    """A hand of cards (bridge style)"""

    def __init__(self, north, east, south, west):
        # Input parameters are lists of cards ('Ah', '9s', etc)
        self.north = north
        self.east = east
        self.south = south
        self.west = west


class HandField(models.Field):

    def __init__(self, *args, **kwargs):
        kwargs['max_length'] = 104
        super(HandField, self).__init__(*args, **kwargs)

    def deconstruct(self):
        name, path, args, kwargs = super(HandField, self).deconstruct()
        del kwargs["max_length"]
        return name, path, args, kwargs

models.py

from django.db import models
from .fields import HandField

class Game(models.Model)
    hand = HandField()

但是，在尝试迁移时，我看到未创建手栏：

...
-- Create model Game
--
CREATE TABLE "django_quizz_game" ("id" integer NOT NULL PRIMARY KEY AUTOINCREMENT);
--
...

我错过了什么？顺便说一句，我无法弄清楚Hand类和HandField类（应该）之间的关系。

无法像Django 1.9文档中那样创建自定义模型字段

0 个答案: