Django-使用inlineformset_factory在主从细节模型中的初始值

时间：2019-07-18 23:40:35

标签： python django django-forms

我有以下型号：

models.py 

class RegistroPago(models.Model):
    fechaPago = models.DateField(default=timezone.now)
    contrato = models.ForeignKey(Contrato, on_delete=models.CASCADE)
    formapago = models.ForeignKey(FormaPago, on_delete=models.CASCADE)
    nota = models.CharField(max_length=255, blank=True)
    archivo = models.FileField(upload_to='images/', blank=True)
    user = models.ForeignKey(User, on_delete=models.CASCADE)

    def __str__(self):
        return str(self.pk)

class RegistroPagoDato(models.Model):
    registropago = models.ForeignKey(RegistroPago, 
    related_name='items',on_delete=models.CASCADE)
    # aqui el secreto fue este related_name = 'items'
    categoria = models.ForeignKey(Categoria, on_delete=models.CASCADE)
    concepto = models.CharField(max_length=150, verbose_name="Concepto")
    importe = models.DecimalField(max_digits=12, decimal_places=2, 
    default=0)

    def __str__(self):
        # return self.cliente
        return str(self.pk)

views.py 

class CrearRegistroPago(CreateView):
    model = RegistroPago
    template_name = 'registropago.html'
    form_class = RegistroPagoForm
    success_url = reverse_lazy('listado_pagos')

    def get(self, request, *args, **kwargs):
        self.object = None
        form_class = self.get_form_class()
        form = self.get_form(form_class)
        detalle_orden_registro_pago_formset = DetalleRegistroPagoFormSet()
        return self.render_to_response(self.get_context_data(form=form, 
        detalle_registro_pago_form_set=detalle_orden_registro_pago_formset))

        def post(self, request, *args, **kwargs):
            form_class = self.get_form_class()
            form = self.get_form(form_class)
            detalle_registro_pago_form_set = DetalleRegistroPagoFormSet(
            request.POST)

    if form.is_valid() and detalle_registro_pago_form_set.is_valid():
        return self.form_valid(form, detalle_registro_pago_form_set)
    else:
        return self.form_invalid(form, detalle_registro_pago_form_set)

    def form_valid(self, form, detalle_registro_pago_form_set):
        form.instance.user = self.request.user
        self.object = form.save()
        detalle_registro_pago_form_set.instance = self.object
        detalle_registro_pago_form_set.save()

        return HttpResponseRedirect(self.success_url)

    def form_invalid(self, form, detalle_registro_pago_form_set):
        return self.render_to_response(self.get_context_data(form=form, 
        detalle_registro_pago_form_set=detalle_registro_pago_form_set))

        def get_form_kwargs(self):
            kwargs = super(CrearRegistroPago, self).get_form_kwargs()
            kwargs.update({'user': self.request.user})
            return kwargs

和forms.py 

class RegistroPagoForm(forms.ModelForm):
    class Meta:
    model = RegistroPago
    labels = {
        "contrato": "Contrato / Nombre del Inquilino:",
        "fechaPago": "Fecha de Pago:",
        "formapago": "Forma de Pago:",
        "nota": "Agregar Nota:",
        }
    fields = ['fechaPago', 'contrato', 'formapago', 'nota', 'archivo',]

    def __init__(self, user, *args, **kwargs):
        super(RegistroPagoForm, self).__init__(*args, **kwargs)
        self.fields['contrato'].queryset = 
        Contrato.objects.all().filter(user=user, status=1)


        for field in iter(self.fields):
            self.fields[field].widget.attrs.update({
            'class': 'form-control'
             })

class RegistroPagoDatoForm(forms.ModelForm):
    class Meta:
    model = RegistroPagoDato
    fields = ['categoria', 'concepto', 'importe',]

    def __init__(self, *args, **kwargs):
       super(RegistroPagoDatoForm, self).__init__(*args, **kwargs)

       for field in iter(self.fields):
          self.fields[field].widget.attrs.update({
        'class': 'form-control'
        })

 DetalleRegistroPagoFormSet = inlineformset_factory(RegistroPago, 
      RegistroPagoDato, form=RegistroPagoDatoForm, extra=4)

 formset = DetalleRegistroPagoFormSet(initial=[{'categoria': 6, 'concepto': 
 'probando, 123 probando', 'importe': 999.99}, {'concepto': 'probando, 123 
  probando'}, {'importe': 999.99},])

  for form in formset:
      print(form.as_table())

当我想捕获新的付款时，使用inlineformset_factory创建的RegistrationPagoDatoForm表单字段显示为预先填充了以下内容中定义的初始值，我无法工作：

formset = DetalleRegistroPagoFormSet(initial=[{'categoria': 6, 'concepto': 
    'probando, 123 probando', 'importe': 999.99}, {'concepto': 'probando, 
    123 probando'}, {'importe': 999.99},])

有趣的是，当您看到由print（form.as_table（））的DetailRegistroPagoFormSet生成的html时，初始值会正确生成！

<tr><th><label for="id_items-0-categoria">Categoria:</label></th><td><select 
name="items-0-categoria" class="form-control" id="id_items-0-categoria">
<option value="">---------</option>
<option value="1">Renta</option>
<option value="2">Agua</option>
<option value="3">Electricidad</option>
<option value="4">Gas</option>
<option value="5">Intereses</option>
<option value="6" selected>Depósito</option>
<option value="7">Mantenimiento</option>
</select></td></tr>
<tr><th><label for="id_items-0-concepto">Concepto:</label></th><td><input   
type="text" name="items-0-concepto" value="probando, 123 probando" 
maxlength="150" class="form-control" id="id_items-0-concepto"></td></tr>
<tr><th><label for="id_items-0-importe">Importe:</label></th><td><input 
type="number" name="items-0-importe" value="999.99" step="0.01" class="form- 
control" id="id_items-0-importe"></td></tr>
<tr><th><label for="id_items-0-DELETE">Eliminar:</label></th><td><input 
type="checkbox" name="items-0-DELETE" id="id_items-0-DELETE"><input 
type="hidden" name="items-0-id" id="id_items-0-id"><input type="hidden" 
name="items-0-registropago" id="id_items-0-registropago"></td></tr>
<tr><th><label for="id_items-1-categoria">Categoria:</label></th><td><select 
name="items-1-categoria" class="form-control" id="id_items-1-categoria">
<option value="" selected>---------</option>
<option value="1">Renta</option>
<option value="2">Agua</option>
<option value="3">Electricidad</option>
<option value="4">Gas</option>
<option value="5">Intereses</option>
<option value="6">Depósito</option>
<option value="7">Mantenimiento</option>
</select></td></tr>
<tr><th><label for="id_items-1-concepto">Concepto:</label></th><td><input 
type="text" name="items-1-concepto" value="probando, 123 probando" 
maxlength="150" class="form-control" id="id_items-1-concepto"></td></tr>
<tr><th><label for="id_items-1-importe">Importe:</label></th><td><input 
type="number" name="items-1-importe" value="0" step="0.01" class="form- 
control" id="id_items-1-importe"></td></tr>
<tr><th><label for="id_items-1-DELETE">Eliminar:</label></th><td><input 
type="checkbox" name="items-1-DELETE" id="id_items-1-DELETE"><input 
type="hidden" name="items-1-id" id="id_items-1-id"><input type="hidden" 
name="items-1-registropago" id="id_items-1-registropago"></td></tr>
<tr><th><label for="id_items-2-categoria">Categoria:</label></th><td><select 
name="items-2-categoria" class="form-control" id="id_items-2-categoria">
<option value="" selected>---------</option>
<option value="1">Renta</option>
<option value="2">Agua</option>
<option value="3">Electricidad</option>
<option value="4">Gas</option>
<option value="5">Intereses</option>
<option value="6">Depósito</option>
<option value="7">Mantenimiento</option>
</select></td></tr>
<tr><th><label for="id_items-2-concepto">Concepto:</label></th><td><input 
type="text" name="items-2-concepto" maxlength="150" class="form-control" 
id="id_items-2-concepto"></td></tr>
<tr><th><label for="id_items-2-importe">Importe:</label></th><td><input 
type="number" name="items-2-importe" value="999.99" step="0.01" class="form- 
control" id="id_items-2-importe"></td></tr>
<tr><th><label for="id_items-2-DELETE">Eliminar:</label></th><td><input 
type="checkbox" name="items-2-DELETE" id="id_items-2-DELETE"><input 
type="hidden" name="items-2-id" id="id_items-2-id"><input type="hidden" 
name="items-2-registropago" id="id_items-2-registropago"></td></tr>

但是在浏览器中不会出现初始值：

initial values not showing!

我想要实现的是，当我获得新的付款时，该表格如下所示：

what I want to achieve!

谢谢！

0 个答案:

没有答案
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