无法使用Django表单和Filepond上传多张图片

Question

我尝试使用Filepond上传多张图片，并且它可以从前端运行，但不能从后端运行。

并且也没有从后端获取数据来编辑表单。

仅显示空白的表格。

我在下面添加了我的代码，分别是models.py，forms.py，views.py和HTML代码。我尝试了多种方法上传多张图片，但每次都只会出错。

models.py

class UserDetail(models.Model):
    user = models.OneToOneField(User, null=True, on_delete=models.CASCADE)
    image = models.ImageField(null=True)
    firm_name = models.CharField(max_length=75, null=True)
    slug = models.SlugField(max_length=75, null=True, blank=True)
    person_name = models.CharField(max_length=40, null=True)
    designation = models.CharField(max_length=20, null=True)

def slug_generator(sender, instance, *args, **kwargs):
    if not instance.slug:
        instance.slug = unique_slug_generator(instance)

pre_save.connect(slug_generator, sender=UserDetail)

class UploadImages(models.Model):
    userdetail = models.ForeignKey(UserDetail, default=None, on_delete=models.CASCADE)
    image = models.ImageField(null=True, blank=True)

    def __str__(self):
        return self.userdetail.firm_name

    class Meta:
        verbose_name_plural = "Upload Extra Images"

forms.py

from django import forms
from customer.models import UserDetail
from django.contrib.auth.forms import UserChangeForm

class EditForm(UserChangeForm):
    person_name = forms.CharField(label='Full Name')
    image = forms.ImageField(label='Logo Image')

    def __init__(self, *args, **kwargs):
        super(EditForm, self).__init__(*args, **kwargs)
        for visible in self.visible_fields():
            visible.field.widget.attrs['class'] = 'input'

    class Meta:
        model = UserDetail
        fields = ('image', 'firm_name', 'person_name', 'designation')

admin.py

class UploadImagesAdmin(admin.StackedInline):
    model=UploadImages

@admin.register(UserDetail)
class UserDetailAdmin(admin.ModelAdmin):
    inlines = [UploadImagesAdmin]

    class Meta:
        model = UserDetail

admin.site.register(UploadImages)

views.py

def template(request, slug_text, template_name='customer/template.html'):
    update = UserDetail.objects.get(slug=slug_text)
    photos = UploadImages.objects.filter()
    length = request.POST.get('length')
    for file_num in range(0, int(length)):
        UploadImages.objects.create(
            update=update,
            images=request.FILES.get(f'images{file_num}')
        )
    form = EditForm(request.POST or None, request.FILES, instance=update)
    if form.is_valid():
        form.save()
        return redirect('dashboard')

    return render(request, 'customer/template.html', {'form':form, 'photos':photos})

template.html

{% extends 'base.html' %}
{% load static %}
{% block body %}
{% if user.is_authenticated %}
<section id="form">
<div class="container">

<div class="wrapper">
    <div class="title">EDIT Template</div>
    <div class="title">Template 1</div>
    <form method="POST" action="/customer/designs/1/{{user.userdetail.slug}}" enctype="multipart/form-data">{% csrf_token %}
    <div class="form">
       <div class="title">HOME</div>
       <div class="inputfield">
         {{ form.image.label_tag }}
         {{ form.image}}
       </div>
       <div class="inputfield">
         {{ form.person_name.label_tag }}
         {{ form.person_name}}
       </div>  
       <div class="inputfield">
         {{ form.designation.label_tag }}
         {{ form.designation }}
       </div>
       <div class="inputfield">
         {{ form.firm_name.label_tag }}
         {{ form.firm_name }}
       </div>
       <div class="inputfield">
        <input type="submit" id="saveBtn" value="Update" class="btn">
       </div>
    </div>
   </form>
  </div>
 </div>
</section>
{% else %}
<div>
<h1> 404 - Page Not Found </h1>
<h3> You Must Login First </h3>
<p><a href="{% url 'login' %}">Login</a> to Continue</p>
</div>


{% endif %}
<script>
document.addEventListener('DOMContentLoaded', function(){
      var files = []
      FilePond.registerPlugin(
      FilePondPluginFileEncode,
      FilePondPluginFileValidateSize,
      FilePondPluginImageExifOrientation,
      FilePondPluginImagePreview
   );
   const inputElement = document.querySelector('input[type="file"]');
   const pond = FilePond.create(inputElement,{
      onaddfile: (err, fileItem) => {
         files.push(fileItem.file)
         console.log(files)
      },
      onremovefile: (err, fileItem) => {
         const index = files.indexOf(fileItem.file)
         if (index > -1) {
            files.splice(index, 1)
         }
         console.log(files)
      }
   });
   var formData = new FormData();
        $(document).on('click', '#saveBtn', function(e) {
            formData.append('length', files.length)
            for (var i = 0; i < files.length; i++) {
                formData.append('images' + i, files[i])
            }
            formData.append('csrfmiddlewaretoken', '{{ csrf_token }}')

            $.ajax({
                type: 'POST',
                url: '/customer/designs/1/{{user.userdetail.slug}}',
                data: formData,
                cache: false,
                processData: false,
                contentType: false,
                enctype: 'multipart/form-data',
                success: function (){
                    alert('The post has been created!')
                },
                error: function(xhr, errmsg, err) {
                    console.log(xhr.status + ":" + xhr.responseText)
                }
            })
        })
      })
</script>

{% endblock body %}