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我有以下模型：

class Investor(Profile):
ROLE = (
    ('AN', 'Angel Investor'),
    ('VC', 'Venture Capital'),
    ('SC', 'Seed Capital')
)
role = models.CharField(max_length=2, default='AN', choices=ROLE)
min_inv = models.DecimalField(
    default=0, max_digits=20, decimal_places=2,
    verbose_name='Minimum Investments per year')
max_inv = models.DecimalField(
    default=0, max_digits=20, decimal_places=2,
    verbose_name='Maximum investments per year')
no_startups = models.IntegerField(
    default=0, verbose_name='Number of investments per year')
rating_sum = models.FloatField(default=0)
no_raters = models.IntegerField(default=0)

我想为这个模型添加多个标签。- 类别 - 阶段 - 资金

我希望投资者被分配到多个类别、阶段和资金。因此，投资者可以绑定到多个类别、多个阶段和多个资金类型。

我如何编辑模型来做到这一点？

4

1 回答 1

1

你可以为连接的模型添加多对多关系吗？

class Investor(Profile):
  ROLE = (
    ('AN', 'Angel Investor'),
    ('VC', 'Venture Capital'),
    ('SC', 'Seed Capital')
  )
  role = models.CharField(max_length=2, default='AN', choices=ROLE)
  min_inv = models.DecimalField(
    default=0, max_digits=20, decimal_places=2,
    verbose_name='Minimum Investments per year')
  max_inv = models.DecimalField(
    default=0, max_digits=20, decimal_places=2,
    verbose_name='Maximum investments per year')
  no_startups = models.IntegerField(
    default=0, verbose_name='Number of investments per year')
  rating_sum = models.FloatField(default=0)
  no_raters = models.IntegerField(default=0)
  categories = models.ManyToMany(Category)
  stages = models.ManyToMany(Stage)
  fundings = models.ManyToMany(Funding)

使用 manytomany 然后您可以分配阶段

investor = Investor.objects.all()[0]
investor.categories.add(category_instance_one, category_instance_two)
investor.categories.all() # retrieves all categories that this investor has
于 2013-04-27T01:10:32.457 回答