自定义表单验证在django中不起作用

Question

在我的表单中，如果读数大于目标不保存到数据库，我想检查每个读数是否符合目标。出于某种原因，我无法使其正常工作，因为它仍然允许我保存。任何帮助将不胜感激！

都在views.py

 #custom formset validation 
def get_dim_target(target): 
    dim = Dimension.objects.values_list('target', flat=True).filter(id=target) 
    return dim 

#custom formset validation 
class BaseInspecitonFormSet(BaseFormSet): 
    def insp_clean(self): 
    if any(self.errors): 
     return 
    reading = [] 
    for form in self.forms: 
     dim_id = form.cleanded_data['dimension_id'] 
     reading = form.cleaned_data['reading'] 

     target = get_dim_target(dim_id) 
     if reading > target: 
     raise forms.ValidationError("Reading larger than target") 
     reading.append(reading) 

     #formset 
def update_inspection_vals(request, dim_id=None): 
    dims_data = Dimension.objects.filter(id=dim_id) 
    can_delete = False 
    dims = Dimension.objects.get(pk=dim_id) 
    sheet_data = Sheet.objects.get(pk=dims.sheet_id) 
    serial_sample_number = Inspection_vals.objects.filter(dimension_id=24).values_list('serial_number', flat=True)[0] 
    target = Dimension.objects.filter(id=24).values_list('target', flat=True)[0] 
    title_head = 'Inspect-%s' % dims.description 

    if dims.ref_dim_id == 1: 
    inspection_inline_formset = inlineformset_factory(Dimension, Inspection_vals, can_delete=False, extra=0, fields=('reading',), widgets={ 
     'reading': forms.TextInput(attrs={'cols': 80, 'rows': 20}) 
    }) 

    if request.method == "POST": 
    formset = inspection_inline_formset(request.POST, request.FILES, instance=dims) 
    if formset.is_valid(): 

     new_instance = formset.save(commit=False) 
     for n_i in new_instance: 

     n_i.created_at = datetime.datetime.now() 
     n_i.updated_at = datetime.datetime.now() 
     n_i.save() 
    else: 
     form_errors = formset.errors 
     formset.non_form_errors() 

    return HttpResponseRedirect(request.META.get('HTTP_REFERER', '/')) 
    else: 
    formset = inspection_inline_formset(instance=dims, queryset=Inspection_vals.objects.filter(dimension_id=dim_id).order_by('serial_number')) 

    return render(request, 'app/inspection_vals.html', 
    { 
    'formset': formset, 
    'dim_data': dims_data, 
    'title':title_head, 
    'dim_description': dims.description, 
    'dim_target': dims.target, 
    'work_order': sheet_data.work_order, 
    'customer_name': sheet_data.customer_name, 
    'serial_sample_number': serial_sample_number, 
    }) 

inspection_val.html

<h1>Inspeciton Values</h1> 
    <div class="well"> 
    <form method="post"> 
    {% csrf_token %} 
    <table> 
     {{ formset.management_form }} 
     {% for x in formset.forms %} 
     <tr> 
      <td>   
       Sample Number {{ forloop.counter0|add:serial_sample_number }} 
      </td> 
      <td> 
       {{ x }} 
       {{ x.errors }} 
      </td> 
     </tr> 
     {% endfor %} 
    </table> 
    <input type="submit" value="Submit Values" class="btn-primary" /> 
    </form> 
    </div> 
</div> 

Answer 1

上custom formset validation显示Django文档，你应该建立一个clean方法。

你已经命名你的方法insp_clean，所以Django永远不会调用它。将方法重命名为clean。