Question

我有2个模特

class WorkOrder(models.Model):
    work_order_id = models.AutoField(db_column='Work_order_id', 
        primary_key=True)
    work_order_number = models.CharField(db_column='Work_order_number', 
        max_length=50, blank=True, null=True)  
    work_order_date = models.DateField(db_column='Work_order_date', 
        blank=True, null=True)  
    customer = models.ForeignKey(Customer, db_column='Customer_id', 
        blank=True, null=True,on_delete=models.CASCADE)  
    description = models.CharField(db_column='Description', max_length=50, 
        blank=True, null=True)  
    completed_date = models.DateField(db_column='Completed_date', 
       blank=True, null=True)  
    completed = Bit1BooleanField(db_column='Completed', 
       editable=False,default=0)  

    class Meta:
        managed = False
        db_table = 'work_order'

class WorkOrderItem(models.Model):
    work_order_item_id = models.AutoField(db_column='Work_order_item_id', 
             primary_key=True)  # Field name made lowercase.
    work_order = models.ForeignKey(WorkOrder, models.DO_NOTHING, 
             db_column='Work_order_id')  # Field name made lowercase.
    part = models.ForeignKey(Part,db_column='Part_id', blank=True, 
         null=True,on_delete=models.CASCADE)  # Field name made lowercase.
    quantity = models.IntegerField(db_column='Quantity', blank=True, 
         null=True)  # Field name made lowercase.

    class Meta:
        managed = False
        db_table = 'work_order_item'

我在forms.py

中使用了一个formset

WorkOrderFormSet = inlineformset_factory(WorkOrder, WorkOrderItem,
                                     # fields='__all__'
                                     # widgets={'work_order_date' : 
DateInput(attrs={'type': 'datetime'}),},
                                     form=WorkOrderForm,
                                     extra=3, can_delete=False)

我想在Workorder表中为work_order_date添加一个小部件。当我在WorkOrderFormset中添加它时，它会显示WorkOrderItem没有该特定字段的错误。所以我尝试添加form = WorkOrderForm并在其中添加Widget： -

class WorkOrderForm(forms.ModelForm):
    class Meta:
        model = WorkOrder
        fields = '__all__'  
        widgets={'work_order_date': DateInput(attrs={'type': 'datetime'}),}

但在网页上显示时没有任何变化。

观点是： -

class CreateWorkOrderItem(CreateView):
    model=WorkOrder
    fields=['work_order_number','work_order_date','customer','description']
    success_url=reverse_lazy('WorkOrder:WorkOrderPending_list')

    def get_context_data(self, **kwargs):
        print("from get_context_data")
        data = super(CreateWorkOrderItem, self).get_context_data(**kwargs)
        if self.request.POST:
            data['workorder'] = WorkOrderFormSet(self.request.POST)
        else:
        data['workorder'] = WorkOrderFormSet()
        return data

    def form_valid(self, form):
        context = self.get_context_data()
        workorders = context['workorder']
        with transaction.atomic():
            self.object = form.save()

在模板中我有： -

{% bootstrap_form form %}
  {{ workorders.management_form }}
  {% for form in workorder.forms %}
    {% bootstrap_form form %}
  {% endfor %}

Ps： - 模型正在网页中显示。小部件的更改只有问题。在django的文档中，他们只提到小部件可以像modelformset_factory一样进行更改。但在其中，所有模型都是相同的，所以这个错误不存在。使用python 3.6.4 Django 2.0.2

如果您需要更多信息，请询问。谢谢！

Answer 1

您需要在视图中设置form_Class，而不是字段。 <{1}}指定给widgets就足够了。

WorkOrderForm

修改：

由于inlineformset_factory（）为子模型创建了多个表单，因此不要将父表单的modelFOrm传递给它。以下就足够了。

class CreateWorkOrderItem(CreateView): model=WorkOrder #fields=['work_order_number','work_order_date','customer','description'] form_class=WorkOrderForm

如果您需要为子模型提供自定义表单，则可以创建并指定上述。

在inlineformset_factory中，无法更改主模型的小部件（django 2.0）

1 个答案: