django admin在'SpecificationParameterForm'中找不到'Key'类别，选项有：help_text，name，units，value_type。“

当我在管理界面中查看更改列表时，我可以看到'name', 'category', 'value_type', 'help_text'字段，证明类别字段没问题。但是当我点击一个参数来到变化形式时，我得到了上述错误。django admin在'SpecificationParameterForm'中找不到'Key'类别，选项有：help_text，name，units，value_type。“

这里是我的管理：

@admin.register(SpecificationParameter) 
class SpecificationParameterAdmin(SortableAdminMixin, admin.ModelAdmin): 
    """ 
    For administering Specification Parameters 
    """ 
    # Fields shown in lists 
    list_display = ('name', 'category', 'value_type', 'help_text') 
    list_per_page = 20 
    # related field needs __ due to foreign key 
    search_fields = ['name', 'category__name'] 
    # Change 'Save and add another' to 'Save as new' to easily create similar entries 
    save_as = True 
    # django 1.10 will default to staying on the page after creating a new one; redirects in 1.9 :(
    # for this purpose, show the id 
    readonly_fields = ('id',) 
    # Modify the layout of the form, put the optional choices last 
    fieldsets = (
     (None,  {'fields': (('name', 'id'), 'category', 'units', 'help_text')}), 
     (_('Type'), {'fields': ('value_type',)}), 
    ) 
    inlines = [SpecificationValueChoiceAdminInline] 

    def get_inline_instances(self, request, obj=None): 
     """ 
     Override to dynamically display choices if multiple choice or checkbox 
     """ 
     instances = [] 
     for inline in self.inlines: 
      if inline == SpecificationValueChoiceAdminInline: 
       if obj and obj.value_type in (tup[0] for tup in SpecificationParameter.VALUE_TYPES[1][1]): 
        # for changes and not adds 
        instances += [inline(self.model, self.admin_site)] 
      else: 
       instances += [inline(self.model, self.admin_site)] 
     return instances

和相关模型片断：

class SpecificationParameter(models.Model): 
    """ 
    The fields required by parameters in the specification of a product. 
    """ 
    # _() Provides the name as a translation 
    name = models.CharField(_("specification parameter name (public)"), unique=True, max_length=50, 
     help_text=_("Be as specific as you can, for example: Minimum DC Voltage")) 
    # All parameters in a category need to be removed manually before it will allow you to delete the cetegory 
    category = models.ForeignKey(SpecificationCategory, verbose_name=_("parameter category"), on_delete=models.PROTECT, 
     help_text=_("Add a new or select an existing parameter section")) 
    help_text = models.CharField(_("help text"), max_length=160, help_text=_("Specify any additional information useful to the staff entering values"), blank=True) 
    ....

Traceback

难道是因为它是一个ForeignKey？任何想法非常赞赏。

编辑：

删除fieldsets删除错误，但默认字段不包括category。

我试过用django 1.10.7和1.9.9没有区别，所以删除了上面的注释。一定要改变我做： - /我已确认category不会出现在form.base_fields

来源

2017-06-05 racitup

请显示完整的回溯和'SpecificationParameter'模型。 – Alasdair

请注意，更改'self.inlines'不是线程安全的。重写['get_inline_instances']（https：// docs.djangoproject.com/en/1.11/ref/contrib/admin /＃django.contrib.admin.ModelAdmin.get_inline_instances'）会更好。 – Alasdair

我可以看到一个异常，那就是help_text，你有这个名字的字段吗？否则你的模型有问题，django如何将name字段中定义的help_text视为另一个字段？ – Exprator

这是由SortableAdminMixin因为category是造成在使用本混入模型元ordering属性。

当我执行pip install -U时，我不小心覆盖了修改的分支。

来源

2017-06-05 19:38:36 racitup

django admin在'SpecificationParameterForm'中找不到'Key'类别，选项有：help_text，name，units，value_type。“

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