Question

I would like after insert in django admin create a directory like a record ID, how and where can I do this.

I try it in to save_model, but it’s not work, Gallery.ID returns None

Model:

class Gallery(models.Model):
    title = models.CharField(max_length=250)
    added = models.DateTimeField()
    active = models.BooleanField()

    def __unicode__(self):
        return self.title

And AdminModel

class GalleryAdmin(admin.ModelAdmin):
    save_on_top = True
    list_filter = ('active',)
    list_display = ('title','active','added')
    ordering = ['-added']
    inlines = [ImagesInline]

    def save_model(self, request, Gallery, form, change):
        if not change:
            Gallery.title = str(Gallery.id)
        Gallery.save()

Answer 1

Change your GalleryAdmin to this… You need to save() before the Gallery instance gets its id.

def save_model(self, request, Gallery, form, change):
    Gallery.save()
    if not change:
        Gallery.title = str(Gallery.id)