想为一个用户上传多张图片，只允许我上传一张

我希望用户能够上传多张图片，但是我只能让它做一张。这是我的代码：

urls.py

from . import views
from django.urls import path


app_name = 'accounts'

urlpatterns = [
    path('login/', views.login, name='login'),
    path('logout/', views.logout, name='logout'),
    path('profile/<int:user_id>', views.profile, name='profile'),
    path('profile/<int:user_id>/upload/', views.upload_pics, name='upload_pics'),


]

这是我的看法：

def upload_pics(request, user_id):

    user_profile = get_object_or_404(User, pk=user_id)

    if request.method == "POST":

        file_list = request.FILES.getlist('files')
        for afile in file_list:

            pic = File()
            pic.user = user_profile
            pic.image = afile
            pic.save()

            return redirect("groups:index")

    else:
        render(request, 'accounts/pic_upload.html')
    return render(request, 'accounts/pic_upload.html')

最后，是以下形式（pic_upload.html）：

<form action="{% url 'accounts:upload_pics' user.id %}" method="post" enctype="multipart/form-data">
    {% csrf_token %}
    <table>
      <tr>
        <td>Select Pictures: </td><td><input name="files" type="file" size="50" accept="image/*" multiple>  </td>
        <td><button type="submit"> Upload </button> </td>
       </tr>
    </table>
</form>

这是我的模型：

from django.db import models
from django.contrib.auth.models import User
# Create your models here.

class File(models.Model):
    image = models.FileField(upload_to='images/')
    user = models.ForeignKey(User, on_delete=models.CASCADE, related_name='files')

我已经尝试了好几天，但是没有运气。我已经研究过表单集，但是似乎存在用于完成多个文件上传的更简单方法。对于为什么只保存一张照片的任何指导，我们将不胜感激。谢谢你