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我有两组固定装置,Person.json 和 Movies.json。Person 夹具基本上有这种格式:

  {
    "pk": 1,
    "model": "data.Person",
    "fields": {
      "full": "Anna-Varney",
      "num": "I",
      "short": "Anna-Varney"
    }
  },

我先加载它,没问题。我的 movie.json 看起来像这样:

  {
    "pk": 1,
    "model": "data.Film",
    "fields": {
      "date": "2005-08-01",
      "rating": 8.3,
      "actors": [
        [
          "Anna-Varney"
        ]
      ],
      "name": "Like a Corpse Standing in Desperation (2005) (V)"
    }
  },

并加载电影夹具给我这个错误:

DeserializationError: Problem installing fixture 'data/fixtures/movies.json': Person matching query does not exist.

我的模型是:

class PersonManager(models.Manager):
    def get_by_natural_key(self, full):
        return self.get(full=full)

class Person(models.Model):
    objects = PersonManager()
    full = models.CharField(max_length=100,unique = True)
    short = models.CharField(max_length=100)
    num = models.CharField(max_length=5)
    def natural_key(self):
        return (self.full,)

    def __unicode__(self):
        return self.full


class Film(models.Model):
    name = models.TextField()
    date = models.DateField()
    rating = models.DecimalField(max_digits=3 , decimal_places=1)
    actors = models.ManyToManyField('Person')

    def __unicode__(self):
        return self.name

我过去加载了类似的模型和固定装置,但我正在尝试重构我的一些代码,所以现在它不起作用。我所做的显着更改之一是我使用的是 PostgreSQL 而不是 MySQL,并且我在 virtualenv 中运行所有东西。有没有办法查明错误发生在夹具的哪个位置?

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