Add example for admin

[Ilya Kazakevich]

Hello.

I have the following layout

class Spam(models.Model)
   pass

class Image(models.Model):
   spam = models.ForeignKey(Spam)
   image = models.ImageField()

I now want to add several images to Spam in admin. Plain Django suggests me to use StackInline, but I can't use multiupload here. Here is good recipe you can add to manual

class SpamForm(ModelForm):
    additional_images = MultiFileField(min_num=1, max_num=3,required=False)

    class Meta:
        model = models.Event
        fields = "__all__"

     def save(self, commit=True): # It may be better to do that in  save_m2m for newly created objects
        save = super().save(commit)
        for image in self.cleaned_data["additional_images"]:
                saved_image = models.Image(event=save, additional_image=image)
                saved_image.save()
                save.additional_images.add(saved_image)
        return save



class ImageAdmin(admin.StackedInline):
    model = models.Image

@admin.register(models.Spam)
class EventAdmin(admin.ModelAdmin):
    form = SpamForm
    inlines = [ImageAdmin]

I now can add several images at once using separate form field:)