The link of the "view_on_site" button is not formed according to the returning result of the "get_absolute_url" method.

[George Tantiras]

I am using Django-1.10.5 under Python-3.4.2.

from django.db import models


class Product(models.Model):
    name = models.CharField(verbose_name="Name", max_length=100, unique=True)

    def get_absolute_url(self):
        return "test-string/{0}".format(self.id)


class Flavor(models.Model):
    product = models.ForeignKey(Product, verbose_name="Product")
    name = models.CharField(verbose_name="Name", max_length=100)


    def get_absolute_url(self):
        return "test-string-2/{0}".format(self.id)

admin.py:

from django.contrib import admin
from inline_online.models import Flavor, Product


class FlavorInline(admin.TabularInline):
    model = Flavor


class ProductAdmin(admin.ModelAdmin):
    list_display = ("id", "name")
    inlines = [FlavorInline, ]


admin.site.register(Product, ProductAdmin)


class FlavorAdmin(admin.ModelAdmin):
    view_on_site = True


admin.site.register(Flavor, FlavorAdmin)

The view_on_site link appears either in the main model admin view or in the inlines but the url is not the one returned from get_absolute_url method (example: /admin/r/10/1)

A very old ticket seem to reference the same issue: https://code.djangoproject.com/ticket/7984