Django Many to Many Inline - how to show fields referenced by through model?

Try this. Hope it solves your problem

class ClownInline(admin.TabularInline):    model = WorkedAt    fields = ['clown_name', 'clown_edit_link']    readonly_fields = ['clown_name', 'clown_edit_link']    def clown_name(self, instance):        return instance.clown.name    clown_name.short_description = 'clow name'    def clown_edit_link(self, instance):        url = reverse("admin:%s_%s_change" % (instance.clown._meta.app_label, instance.clown._meta.module_name), args=(instance.clown.pk,))        return '<a href="%s">%s</a>' % (url, instance.clown.name)    clown_edit_link.allow_tags = Trueclass CircusAdmin(admin.ModelAdmin):    inlines = [        ClownInline,    ]    exclude = ('clowns',)

I don't know if anyone still needs this, because this question is 4 years old but this solved my problem for in Django 2.0.3:

# models.pyclass Clown(models.Model):    name = models.CharField(max_length=255)    def edit_link(self):        return ...class Circus(models.Model):    clowns = models.ManyToManyField(Clown, blank=True, through='WorkedAt')    name = models.CharField(max_length=255)class WorkedAt(models.Model):    clown = models.ForeignKey(Clown)    circus = models.ForeignKey(Circus)# admin.pyclass WorkedAtInline(admin.TabularInline):    model = WorkedAt    extra = 1class WorkedAtAdmin(admin.ModelAdmin):    inlines = (WorkedAtInline,)admin.site.register(Clown, WorkedAtAdmin)

Hope this helps anyone that stumbles upon this problem and looks into this answer.