如何通过模板中的对象访问自定义的多对多字段 [英] How to access fields in a customized many-to-many through object in templates

问题描述

请考虑以下模型:

class Person(models.Model):
    name = models.CharField(max_length=128)

class Group(models.Model):
    name = models.CharField(max_length=128)
    members = models.ManyToManyField(Person, through='Membership')

class Membership(models.Model):
    person = models.ForeignKey(Person)
    group = models.ForeignKey(Group)
    date_joined = models.DateField()
    invite_reason = models.CharField(max_length=64)

成员资格是具有额外字段的自定义多对五对象.
如果我有一个人员实例，如何在常规代码和Django模板文件中访问其所有成员关系的相应date_joined字段?

Membership is a customized many-to-may through object with extra fields.
If I have a person instance, how can I access the corresponding date_joined fields of all its membership relations - both in regular code and in a django template file?

推荐答案

person.membership_set.all()将为您提供给定person的所有Membership实例的列表.您可以在常规代码和模板中使用它.

person.membership_set.all() will give you a list of all Membership instances for a given person. You can use this in regular code as well as in the template.

for each in person.membership_set.all():
    print each.date_joined

{% for each in person.membership_set.all %}
    {{ each.date_joined }}
{% endfor %}

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