@admin.register(Item)
class AdminProductItem(admin.ModelAdmin):
    filter_horizontal = ('concepts', 'subcategories', 'accessories',)
    raw_id_fields = ('replacement', 'supplier', 'manufacturer')
    inlines = [PictureInline]

    # class Media:
    #     js = ('js/itemAttributeController.js',)

    def save_model(self, request, obj, form, change):
        obj.save()

        for img in request.FILES.getlist('pictures'):
            obj.pictures.create(item=obj, img=img)