0

所以我有一个 House 模型的 modelformset，它有一个 owner manytomany 字段，我排除了 owner 字段，因为我希望它自动将当前登录的用户 ID 保存为所有者 - 我可以破解这个带有隐藏字段，但宁愿知道它是如何正确完成的。

为清楚起见，完整性错误是 owner_id 不能为空，我尝试通过硬编码修复它只是为了在 manage_houses 的开头看到失败

视图.py 

 def manage_houses(request):                                                                                                                                                                                                                 
    HousesFormSet = modelformset_factory(House, form=ManageHousesForm)                                                                                                                                                                  

    if request.method == 'POST':                                                                                                                                                                                       
        formset = HousesFormSet(request.POST)                                                                                                                                                                                               

        # failed attempt at fixing integrity error                                                                                                                                                                                                                 
        for form in formset:                                                                                                                                                                                                                  
            form.owner_id = 1                                                                                                                                                                                                            

        if formset.is_valid():                                                                                                                                                                                                                
            if formset.save():                                                                                                                                                                                                                
                notice      = "Success! Your houses were updated in the system."                                                                                                                                                            
                notice_type = "success"                                                                                                                                                                                                       
            elif not formset.has_changed():                                                                                                                                                                                                   
                pass                                                                                                                                                                                                                          
            else:                                                                                                                                                                                                                             
                notice      = "Something went wrong! Your houses may not have been updated."                                                                                                                                                
                notice_type = "error"                                                                                                                                                                                                         
    else:                                                                                                                                                                                                                                     
        formset = SpecialsFormSet()                                                                                                                                                                                                           

    response_details = { 'formset': formset,                                                                                                                                                                                                  
                     'fields':  ManageHousesForm.base_fields }                                                                                                                                                                          

    try:                                                                                                                                                                                                                                      
        response_details['notice']      = notice                                                                                                                                                                                              
        response_details['notice_type'] = notice_type                                                                                                                                                                                         
    except NameError:                                                                                                                                                                                                                         
        pass                                                                                                                                                                                                                                  

    return render_to_response('houses/manage.djhtml', response_details)

模型.py

class House(models.Model):                                                                                                                                                                                                               
    class Meta:                                                                                                                                                                                                                               
        app_label = 'houses'                                                                                                                                                                                                             

    # Fields                                                                                                                                                                                                                                  
    owners          = models.ManyToManyField(User)                                                                                                                                                                                            

    name            = models.CharField(max_length=50)                                                                                                                                                                                         
    slug            = models.SlugField(max_length=100, blank=True, editable=False, unique=True)                                                                                                                                               
    address         = models.CharField(max_length=75)                                                                                                                                                                                                 

    def __unicode__(self):                                                                                                                                                                                                                    
        return self.name
4

1 回答 1

2

根据 Django 文档，这就是内联表单集的用途：

内联表单集是模型表单集之上的一个小型抽象层。这些简化了通过外键处理相关对象的情况。

于 2012-10-07T22:27:54.680 回答