Django Unique Image Id Generation

Question

I am relatively new in django .I am developing a project using django where i have a option to upload image.For upload image , i have following model and view

models.py

class Photo(models.Model):
    name = models.CharField(max_length = 100)
    photo = models.ImageField(upload_to = 'photos', blank=False,null=True)
    approved = models.BooleanField(default = False)
    uploaded_time = models.DateTimeField()
    description = models.CharField(max_length = 80 , blank = False , null = True)
    approved_by = models.CharField(max_length = 100)
    user = models.ForeignKey(User)

views.py

def UserImageUpload(request):
    if request.method == 'POST':
        form = DocumentForm(request.POST,request.FILES)
        if form.is_valid():
            messages.add_message(request, messages.SUCCESS, 'Your Image upload is waiting for Admin approval')

            newdoc = Photo(photo = request.FILES['photo'],watermarked_image=request.FILES['photo'],user = request.user,name = request.POST['name'],description = request.POST['description'],uploaded_time=datetime.datetime.now(),Certified=request.POST['Certification'])
            newdoc.save()
        else:
            messages.add_message(request, messages.ERROR, 'Something is Missing!')

    else:
        form = DocumentForm()

    uploaded_image = Photo.objects.all()

    return render_to_response('myprofile/user_image_upload.html',{'uploaded_image':uploaded_image,'form':form},context_instance = RequestContext(request))

now i want to create a auto generated image Id for every uploaded image. Don't mess up the image Id with the pk of images.Now the question is, how can i do this.

Why don't you add an identity column to your DB table, which will auto increment for every new row? And it doesn't need to be a PK — Divi, Jun 30 '14 at 04:44
actually i want to generate an unique image id beside pk of images,its obvious that every image have a pk ,but beside that i also want to generate a image id for every uploaded image. — Md. Tanvir Raihan, Jun 30 '14 at 05:02
I understand and that's exactly what I said in my first comment. You can create an identity column that's not a PK — Divi, Jun 30 '14 at 05:13
can you give it as a answer please? If it works well then i will accept it. — Md. Tanvir Raihan, Jun 30 '14 at 05:15
I strongly recommend using STDimage pip install stdimage its super easy and you do less work. https://github.com/humanfromearth/django-stdimage — Eddwin Paz, Jun 30 '14 at 05:37
@Tanweer see the documentation. I use it and I've never had problems with duplicate images — Eddwin Paz, Jun 30 '14 at 05:51
@Tanweer you can also add a tag to the image if needed like _12323123 underscore with a unix timestamp. But this is something that you might want to add and pass it to... — Eddwin Paz, Jun 30 '14 at 05:54

score 0 · Accepted Answer · edited May 23 '17 at 12:29

0

You can add it as an identity column to your DB table, which will auto increment for every new row. And it doesn't need to be a PK.

This post should help further.

edited May 23 '17 at 12:29

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answered Jun 30 '14 at 05:23

Divi

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Django Unique Image Id Generation

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