Django:从表单保存图像文件

时间:2010-07-08 08:20:57

标签: python django django-forms django-views

我想保存通过PaletteGenForm上传的图像:

#Form 
class PaletteGenForm(forms.Form):
    im = forms.ImageField(required=True)

#View
def palette_gen_view(request):
    PATH_OF_IMAGE_TO_BE_PALETTED= MEDIA_ROOT+ "/tobesaved.png"
    if request.method == 'POST':
        form = PaletteGenForm(request.POST, request.FILES)
        if form.is_valid():
            im = Image.open(StringIO(request.FILES['im']['content']))
            im.save(PATH_OF_IMAGE_TO_BE_PALETTED, "PNG")
            #call some functions to generate pallete
            return #returns the palette of the image.
    else:
        form = PaletteGenForm()
    return render_to_response('palette_generate.html', {'form': form,})

但是,在调用此URL时出现错误:

'InMemoryUploadedFile' object is unsubscriptable

3 个答案:

答案 0 :(得分:4)

试试这个:

im = Image.open(StringIO(request.FILES['im'].read()))

答案 1 :(得分:1)

根本不确定是否需要将其包装在StringIO中。尝试

im = Image.open(request.FILES['im']['content'])

答案 2 :(得分:0)

尝试从clean_data表单中读取数据

im = Image.open(StringIO(form.cleaned_data['im'].read()))

对我来说这很有用(没试过请求阅读)