symposion_app/pinaxcon/proposals/admin.py

from django.contrib import admin

from pinaxcon.proposals import models
from symposion.proposals import models as symposion_models


@admin.register(models.TalkProposal)
@admin.register(models.TutorialProposal)
@admin.register(models.MiniconfProposal)
@admin.register(models.SysAdminProposal)
@admin.register(models.KernelProposal)
@admin.register(models.GamesProposal)
@admin.register(models.OpenHardwareProposal)
@admin.register(models.ClsXLCAProposal)
@admin.register(models.FuncProgProposal)
@admin.register(models.OpenEdProposal)
@admin.register(models.OpenGLAMProposal)
@admin.register(models.FPGAProposal)
@admin.register(models.DevDevProposal)
@admin.register(models.ArtTechProposal)
@admin.register(models.BioInformaticsProposal)

class CategoryAdmin(admin.ModelAdmin):

    class AdditionalSpeakerInline(admin.TabularInline):
        model = symposion_models.AdditionalSpeaker

    inlines = [
        AdditionalSpeakerInline,
    ]