Django ImageField is not updating when update() method is used

问题

I am updating some of fields in model from views.py file. All other fields are updated properly when I use

Profile.objects.filter(id=user_profile.id).update(
        bio=bio,
        city=city,
        date_of_birth=dob,
        profile_pic=profile_pic,
        gender=gender
    )

only, profile_pic = models.ImageField(blank=True) is not updated, Weird thing is when I check my Profile model from admins.py it shows me the file name which I uploaded, But my file is not shown in my /media directory(where I upload my all Images)

views.py

def edit_submit(request):
if request.method == 'POST':
    profile_pic = request.POST.get('profile_pic')
    bio = request.POST.get('bio')
    city = request.POST.get('city')
    dob = request.POST.get('dob')
    gender = request.POST.get('gender')
    user_profile = Profile.objects.get(user=request.user)
    Profile.objects.filter(id=user_profile.id).update(
        bio=bio,
        city=city,
        date_of_birth=dob,
        profile_pic=profile_pic,
        gender=gender
    )
    return HttpResponseRedirect(reverse('profile', args=[user_profile.id]))

This is how I manage my media files in settings.py

MEDIA_ROOT = os.path.join(BASE_DIR, 'media')
MEDIA_URL = '/media/'

I think only text is stored in ImageField and Image is not uploded to /media directory Note: I am using <input type="file" name="profile_pic" class="change_user_img"> for getting image from template

回答1:

The QuerySet.update() method doesn't call save() on the model, and so the usual mechanism that places the image into storage is not executed. In addition, you must retrieve the uploaded image from request.FILES not request.POST.

Rather than using update(), if you set the attributes on the model instance and then call save(), the image should get saved to the correct place on disk. For example:

profile_pic = request.FILES.get('profile_pic')  # Use request.FILES

bio = request.POST.get('bio')
city = request.POST.get('city')
dob = request.POST.get('dob')
gender = request.POST.get('gender')

user_profile = Profile.objects.get(user=request.user)
user_profile.bio = bio
user_profile.city = city
user_profile.date_of_birth = dob
user_profile.profile_pic = profile_pic
user_profile.gender = gender
user_profile.save()

As mentioned in the comments, you must also ensure that the your form has enctype="multipart/form-data" set.

回答2:

Specify upload_to on profile_pic = ...: Docs here.

来源：https://stackoverflow.com/questions/54040591/django-imagefield-is-not-updating-when-update-method-is-used

标签

python

django

imagefield