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django - 如何在管理面板中自定义多线程内联的“描述”

问题描述

我有那些非常简单的模型：

class Activity(BaseModel):
    name = models.CharField(max_length=200, blank=True, null=True)

class Person(BaseModel):
    activities = models.ManyToManyField('Activity', related_name='persons')

在admin.py我为此做了一个内联并且它可以工作，如下所示：

class PersonActivitiesInlineAdmin(admin.StackedInline):
    model = Profession.persons.through
    fk_name = 'person'

class PersonAdmin(admin.ModelAdmin):
    inlines = (PersonActivitiesInlineAdmin, )

我的问题是在管理界面中描述内联的字符串就像

 Profession: Person_activities object (831)
 Profession: Person_activities object (832)
 Profession: Person_activities object (835)
 Profession: Person_activities object (838)

那么如何在管理面板中自定义manytomany inline的“描述”呢？

标签： djangodjango-admin

解决方案

一个可能的解决方案是显式地为 的多对多关系创建连接模型，Person并Activity使用through并添加描述：

class Activity(BaseModel):
    name = models.CharField(max_length=200, blank=True, null=True)

class Person(BaseModel):
    activities = models.ManyToManyField(
        Activity,
        related_name='persons',
        through='PersonActivity'  # Use PersonActivity for join model
    )

class PersonActivity(BaseModel):
    description = models.CharField(max_length=255)  # Your custom description field
    activity = models.ForeignKey(Activity, on_delete=models.CASCADE)
    person = models.ForeignKey(Person, on_delete=models.CASCADE)

    def __str__(self):
        # The admin automatically renders the string representation of the model
        # e.g. Person_activities object (838)

        # Thus you can return your custom description in order to display it
        return self.description

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