一页上有2个表单。
有 2 个模型:1. Product。 2. SpeciallyPrice。 SpeciallyPrice 通过 FK 链接到 Product。同时，SpeciallyPrice是Product中的Inline模型。
SpecialPriceForm 的字段是使用 JS 自动创建的。也就是说，它们可能是第 n 个数。有必要为每个创建的字段创建一条记录。原则上，我猜想怎么做——使用循环来驱动获得的值。但问题是由于某种原因 None 来自 form。请帮助我。
class ProductsCreate(CreateView):
model = Product
form_class = ProductCreateForm
http_method_names = ['get', 'post']
def get_initial(self):
initial = super(ProductsCreate, self).get_initial()
initial['request'] = self.request
return initial
def get_context_data(self, *args, **kwargs):
ctx=super(ProductsCreate, self).get_context_data(*args, **kwargs)
ctx['special_form'] = SpeciallyPriceForm()
return ctx
def get(self, request, *args, **kwargs):
self.object = None
if kwargs.get('slug'):
category = Category.objects.filter(slug=kwargs.get('slug')).first()
self.initial.update({'category': category})
return self.render_to_response(self.get_context_data())
def post(self, request, *args, **kwargs):
self.object = None
form = ProductCreateForm(request.POST, request.FILES, initial={'request': request})
special_form = SpeciallyPriceForm(request.POST)
print(special_form) #Template of form, without values.
if form.is_valid() and special_form.is_valid():
return self.form_valid(form, special_form)
else:
return self.form_invalid(form, special_form)
def form_valid(self, form, special_form):
product = form.save(commit=False)
product.user = self.request.user
product.save()
special = special_form.save(commit=False)
#Here I think, depending on the number of list items, to cycle through it and create the corresponding number of `special` records associated with this` product`. Is the logic correct?
special.product = product
special.save()
for spec_price in special_form.cleaned_data.get('adittional_specially_price'):
print(spec_price)
special.adittional_specially_price = spec_price
for spec_numb in special_form.cleaned_data.get('adittional_specially_number'):
print(spec_numb)
special.adittional_specially_number = spec_numb
表单
class SpeciallyPriceForm(forms.ModelForm):
class Meta:
model = SpeciallyPrice
fields = ['adittional_specially_price', 'adittional_specially_number']
def clean(self):
cleaned_data = super(SpeciallyPriceForm, self).clean()
cd_adittional_specially_price = cleaned_data.get('adittional_specially_price')
print(cd_adittional_specially_price) #None
cd_adittional_specially_number = cleaned_data.get('adittional_specially_number')
print(cd_adittional_specially_number) #None
模板+js
<html><body>
Special price from {{ special_form.adittional_specially_price }} kg {{ special_form.adittional_specially_number }} usd
<script>
(function(){
var copy = document.querySelector('.field.inline.specially').cloneNode(true);
document.querySelector('html').addEventListener('input', function(e){
if(e.target.classList.contains('event') && e.target.tagName == 'INPUT'){
var error = 0;
for(var evt of document.querySelectorAll('.field.inline.specially input.event')){
evt.value = evt.value.replace(/[^\d]/,'');
if(!evt.value || +evt.value < 1) error++;
}
if(!error){
var last = document.querySelectorAll('.field.inline.specially');
last[last.length-1].insertAdjacentHTML('afterEnd', copy.outerHTML);
}
}
});
})();
</script>
</body></html>
当打印 form 进行检查时，我在 View 中看到了这种形式
<label for="specially" class="subhead">Special price from</label>
<span class="id_specially_price"><input type="text" name="adittional_specially_price" style="width: 165px" class="event" id="id_adittional_specially_price"></span>
<span>kg</span>
<span class="id_specially_number"><input type="text" name="adittional_specially_number" style="width: 100px" class="event" id="id_adittional_specially_number"></span>
<span>usd</span>
我查看了 View - 表单在那里呈现，但只有一个字段，而不是所有内容。而且表单是空的 ..如何解决这个问题？也许 Ajax 应该被连接并且它以某种方式处理请求？还是有更多的 Django 选项？
最佳答案
回答这个评论:“真的来了用 JS 字段创建的最后两个空。如何让所有字段都来，请告诉我？”
在 CBV 中保存内联表单集:
def form_valid(self, form):
context = self.get_context_data()
inline_form = context['inline_form']
if inline_form.is_valid():
self.object = form.save()
inline_form.instance = self.object
inline_form.save()
显然，您必须在 context 中为 inline_form 使用正确的名称。
关于javascript - 为什么我得到空表格？如何自动创建 Iniline 模型？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/55480204/