我想通过一个向的ModelForm上传多个文件，所有文件被分配到Model.I的file场通过文档已经走了，我看到它的一个例子，我已经在这里实现，但我只能让我的形式接多个文件，但只有一个得到保存和分配给filesfield.Below是我的代码
models.朋友
class Feed(models.Model):
user=models.ForeignKey(User,on_delete=models.CASCADE,related_name='feeds')
text=models.TextField(blank=False,max_length=500)
files = models.FileField(upload_to="files/%Y/%m/%d")
forms.朋友
class FeedForm(ModelForm):
class Meta:
model=Feed
fields=('text','auth','files')
widgets={"files":forms.FileInput(attrs={'id':'files','required':True,'multiple':True})}
和views.py
def post_feed(request):
form_class = FeedForm
if request.method == 'POST':
form = form_class(request.POST,request.FILES)
if form.is_valid():
feed = form.save(commit=False)
feed.user = User.objects.get(pk=1)
feed.pub_date=timezone.now()
#instance = Feed(files=request.FILES['files'])
# feed.files=request.FILES['files']
feed.save()
return redirect('home')
else:
form = form_class()
return render(request, 'post_feed.html', {'form': form,})
from django.views.generic.edit import FormView
from .forms import FeedForm
class FileFieldView(FormView):
form_class=FeedForm
template_name='post_feed.html'
'''success_url=??? #I dont know what to write here.I thought of putting this
render(request, 'post_feed.html', {'form': form,}) because I just want
to reload the page but it gave an error,so I removed it entirely.'''
def post_feed(self,request,*args,**kwargs):
form_class=self.get_form_class()
form=self.get_form(form_class)
filez=request.FILES.getlist('files')
if form.is_valid():
for f in filez:
f.save()
return self.form_valid(form)
else:
return self.form_invalid(form)
请帮助我，在此先感谢。
你必须为这些文件创建一个独立的模型，并将它们与外键连接：
class Feed(models.Model):
user=models.ForeignKey(User, on_delete=models.CASCADE, related_name='feeds')
text=models.TextField(blank=False, max_length=500)
class FeedFile(models.Model):
file = models.FileField(upload_to="files/%Y/%m/%d")
feed = models.ForeignKey(Feed, on_delete=models.CASCADE, related_name='files')
我希望这有帮助。
唷，我花了一整天的时间来弄清楚这一点。我的目标是将多个文件分配到一个类的一个实例，就像一个博客实例可以有多个图像。首先第一件事情，你不能用模型（例如博客类中）内的一个models.FileField做到这一点，是因为这个领域并不是用来保存多个文件。因此，解决办法是创建文件单独的模型，并将其与一一对多的关系（外键）连接，因为它是由@Carlos Mermingas回答。够的话，这里是上述情况的代码：
# models.py
class Feed(models.Model):
user=models.ForeignKey(User, on_delete=models.CASCADE)
text=models.TextField(blank=False, max_length=500)
class FeedFile(models.Model):
file = models.FileField(upload_to="files/%Y/%m/%d")
feed = models.ForeignKey(Feed, on_delete=models.CASCADE)
# forms.py
...
from django.forms import ClearableFileInput
...
class FeedModelForm(forms.ModelForm):
class Meta:
model = Feed
fields = ['text']
class FileModelForm(forms.ModelForm):
class Meta:
model = FeedFile
fields = ['file']
widgets = {
'file': ClearableFileInput(attrs={'multiple': True}),
}
# widget is important to upload multiple files
# views.py
from .models import FeedFile
...
def create_to_feed(request):
user = request.user
if request.method == 'POST':
form = FeedModelForm(request.POST)
file_form = FileModelForm(request.POST, request.FILES)
files = request.FILES.getlist('file') #field name in model
if form.is_valid() and file_form.is_valid():
feed_instance = form.save(commit=False)
feed_instance.user = user
feed_instance.save()
for f in files:
file_instance = FeedFile(file=f, feed=feed_instance)
file_instance.save()
else:
form = FeedModelForm()
file_form = FileModelForm()
# the rest is the basic code: template_name, context, render etc.
# in your template.html <form> tag must include enctype="multipart/form-data"
除此之外，如果你想看到在管理面板上传的文件，你可以使用InlineModelAdmin对象。下面是代码：
# admin.py of your app
from django.contrib import admin
from .models import Feed, FeedFile
class FeedFileInline(admin.TabularInline):
model = FeedFile
class FeedAdmin(admin.ModelAdmin):
inlines = [
FeedFileInline,
]
admin.site.register(Feed, FeedAdmin)
有关qazxsw POI，qazxsw POI的详细信息，如何将qazxsw POI
建议使用从file upload模型的M2M领域Model Forms模型。使这一切更在查询特定widget in Model Form对象的文件，这我觉得也是Feed对象最常见的用例更容易
FeedFile