如何在Django中向自定义管理表单添加不可编辑的字段

时间:2017-08-15 19:14:23

标签: python django django-models django-forms django-views

我正在尝试向自定义管理表单添加editable = False字段,但是我收到错误:

django.core.exceptions.FieldError: 'help_num' cannot be specified for 
Investigation model form as it is a non-editable field

这是真的,在我的模型中,我将它设置为:

models.py

help_num = models.CharField(max_length=17, unique=True, default=increment_helpdesk_number, editable=False)

forms.py

class HelpDeskModelForm(forms.ModelForm):

    class Meta:
      model = HelpDesk
      fields = [
          "help_num",
          "help_types",
           ...
          "help_summary"
          ]

admin.py

class HelpDeskModelAdmin(admin.ModelAdmin):
    readonly_fields=('help_num',)
    form = HelpDeskModelForm

我将readonly添加到admin.py,但仍然出现错误。不知道我在这里做错了什么。

1 个答案:

答案 0 :(得分:4)

您需要从类表单字段列表中删除不可编辑的字段:

class HelpDeskModelForm(forms.ModelForm):

    class Meta:
      model = HelpDesk
      fields = [
          #"help_num",
          "help_types",
           ...
          "help_summary"
          ]

并像你一样保留ModelAdmin中的只读字段:

class HelpDeskModelAdmin(admin.ModelAdmin):
    readonly_fields=('help_num',)
    form = HelpDeskModelForm