python - Django Admin 嵌套内联

Question

我需要一个嵌套的 django 管理内联，我可以将日期字段内联包含在另一个内联中，如下所示。

我有以下模型:

class Person(models.Model):
     name = models.CharField(max_length=200)
     id_no = models.IntegerField()

class Certificate(models.Model):
     cerfificate_no = models.CharField(max_length=200)
     certificate_date = models.DateField(max_length=100)
     person = models.ForeignKey(Person)
     training = models.CharField(max_length=200)

class Training_Date(models.Model):
      date = models.DateField()
      certificate = models.ForeignKey(Certificate)

还有，下面的管理员:

class CertificateInline(admin.StackedInline):
    model = Certificate

class PersonAdmin(admin.ModelAdmin):
     inlines = [CertificateInline,]
admin.site.register(Person,PersonAdmin)

但是，我需要将 Training_Date 模型作为内联包含在内，这是内联证书管理的一部分。

有什么想法吗？

Answer 1

https://code.djangoproject.com/ticket/9025 有一些变化最近，但我不会屏住呼吸。

解决此问题的一种常见方法是通过为同一模型同时使用 ModelAdmin 和 Inline 来链接到第一级和第二级(或第二级和第三级)之间的管理员:

给 Certificate 一个带有 TrainingDate 作为内联的 ModelAdmin。为 CertificateInline 设置 show_change_link = True，以便您可以单击内联以转到其 ModelAdmin 更改表单。

管理员.py:

# Certificate change form has training dates as inline

class TrainingDateInline(admin.StackedInline):
    model = TrainingDate

class CertificateAdmin(admin.ModelAdmin):
    inlines = [TrainingDateInline,]
admin.site.register(Certificate ,CertificateAdmin)

# Person has Certificates inline but rather
# than nesting inlines (not possible), shows a link to
# its own ModelAdmin's change form, for accessing TrainingDates:

class CertificateLinkInline(admin.TabularInline):
    model = Certificate
    # Whichever fields you want: (I usually use only a couple
    # needed to identify the entry)
    fields = ('cerfificate_no', 'certificate_date')
    # Django 1.8 introduced this, no need to make your own link
    show_change_link = True

class PersonAdmin(admin.ModelAdmin):
    inlines = [CertificateLinkInline,]
admin.site.register(Person, PersonAdmin)