模型没有属性_committed [英] Model has no attribute _committed
问题描述
我使用jquery表单插件 http://jquery.malsup.com/form/ #get-started 通过ajax上传图像。当我尝试上传它显示模型没有属性_committed
这是我的Html:
< form id =uploadformmethod =postenctype =multipart / form-dataaction =/ cover /> {%csrf_token%}
{{form.background}}
< /形式>
Javascript:
https://gist.github.com/2381406
模型.py:
class BackgroundModel(models.Model):
user = models.OneToOneField(User)
background = models.ImageField(upload_to ='backgrounds')
class BackgroundModelForm(ModelForm):
class Meta:
model = BackgroundModel
exclude =('user ',)
Views.py:
@login_required
pre>
def backgroundview(request):
如果request.is_ajax():
form = BackgroundModelForm(request.POST,request.FILES)
如果form.is_valid():
try:
g = BackgroundModel.objects.get(user = request.user)
除了BackgroundModel.DoesNotExist:
data = form。 save(commit = False)
data.user = request .user
data.save()
else:
g.background = form
g.save()
HttpResponse()
其他:
form = BackgroundModelForm()
return render_to_response(cover.html,{'form':form},context_instance = RequestContext(request))
Urls.py:
url(r'^ cover / $','cover.views.backgroundview'),
解决方案p>而不是在$分支中的
g.background = form
,尝试try:
g = BackgroundModel.objects.get(user = request.user)
除了BackgroundModel.DoesNotExist:
data = form.save(commit = False)
数据。 user = request.user
data.save()
else:
g.background = form.save(commit = False).background
g.save()
#或
BackgroundModelForm(request.POST,request.FILES,instance = g).s ave()
只有一个接受类型的值可以分配给模型实例的相应字段。
models.ImageField这里接受
- 文件路径字符串
- django.db .models.fields.files.ImageFieldFile
- django.core.files.images.ImageFile
I'm using jquery form plugin http://jquery.malsup.com/form/#getting-started to upload images through ajax. When I try to upload it shows the model has no attribute _committed Here is my Html:
<form id="uploadform" method="post" enctype="multipart/form-data" action="/cover/">{% csrf_token %}
{{ form.background }}
</form>
Javascript:
https://gist.github.com/2381406
Models.py:
class BackgroundModel(models.Model):
user = models.OneToOneField(User)
background = models.ImageField(upload_to='backgrounds')
class BackgroundModelForm(ModelForm):
class Meta:
model = BackgroundModel
exclude = ('user',)
Views.py:
@login_required
def backgroundview(request):
if request.is_ajax():
form = BackgroundModelForm(request.POST, request.FILES)
if form.is_valid():
try:
g = BackgroundModel.objects.get(user=request.user)
except BackgroundModel.DoesNotExist:
data = form.save(commit=False)
data.user = request.user
data.save()
else:
g.background = form
g.save()
HttpResponse(" ")
else:
form = BackgroundModelForm()
return render_to_response("cover.html", {'form': form}, context_instance=RequestContext(request))
Urls.py:
url(r'^cover/$', 'cover.views.backgroundview'),
Instead of g.background = form
in the else branch, try
try:
g = BackgroundModel.objects.get(user=request.user)
except BackgroundModel.DoesNotExist:
data = form.save(commit=False)
data.user = request.user
data.save()
else:
g.background = form.save(commit=False).background
g.save()
# or
BackgroundModelForm(request.POST, request.FILES, instance=g).save()
Only a value of accepted types could be assigned to corresponding field of a model instance.
models.ImageField here accepts
- file path string
- django.db.models.fields.files.ImageFieldFile
- django.core.files.images.ImageFile
这篇关于模型没有属性_committed的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!