is_valid() returns True but modelform won't be saved

Question

I have these models:

class Gallery(models.Model):
   HeadImage = models.ImageField(upload_to="gallery",blank=True,null=True)

class News(Gallery):
   Name=models.CharField(max_length=100) 
   #some other fields

U know that with this inheritance,News model has a gallery_ptr field,now I'm going to update this field using ajax:

$.ajax({
    url:'{% url DrHub.views.editNews dr.webSite,news.pk %}',
    type:'POST',
    data:{id_HeadImage:$('#id_HeadImage').val(),id_title:$('#id_title').val(),id_category:$('#id_category').val(),id_description:$('#id_description').val()},
})

in views.py I do this:

        gForm=GalleryForm(request.POST['id_HeadImage'], request.FILES,instance=newsInstance.gallery_ptr)
        if gForm.is_valid():
           gForm.save()
        else:
           raise Http404

But Image of Gallery won't be saved,while is_valid() is True!

any suggestion?

score 3 · Accepted Answer · edited May 23 '17 at 12:11

3

You can't simply upload files in ajax like this. Furthermore, I believe $('#id_HeadImage').val() contains only the file name .

Please ref How can I upload files asynchronously?

edited May 23 '17 at 12:11

Community

1
1

answered Mar 25 '12 at 16:24

okm

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score 2 · Answer 2 · edited May 23 '17 at 12:27

2

~~The form is valid, but you haven't actually handled the uploaded file (i.e. read and saved it). Have a look at the example in the django docs.~~

You're right, the model form should take care of the uploading for you. Have you seen this related question? Have you made sure your template declares the form like:

<form action="." method="POST" enctype="multipart/form-data">

i.e. with multipart/form-data

edited May 23 '17 at 12:27

Community

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answered Mar 25 '12 at 13:43

Timmy O'Mahony

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but I've used modelform to avoid from handling files in this way! – Asma Gheisari Mar 25 '12 at 15:24
1

+1 for "multipart/form-data" although its not the answer here – okm Mar 25 '12 at 16:27

is_valid() returns True but modelform won't be saved

2 Answers2