from django.contrib import admin
from django.contrib.auth.admin import UserAdmin
from django.contrib.auth.models import User
from django.utils.translation import ugettext as _


from musicians.models import Musician

from eventplanner.admin import EventParticipationInline


# Define an inline admin descriptor for Musician model
# which acts a bit like a singleton
class MusicianInline( admin.StackedInline ):
    model = Musician
    can_delete = False
    verbose_name_plural = _('musicians')
    verbose_name = _('musician')
    
# Define a new User admin
class UserAdmin( UserAdmin ):
    inlines = (MusicianInline, )



class MusicianAdmin(admin.ModelAdmin):
    readonly_fields = ('user',)
    inlines = ( EventParticipationInline, )
    model = Musician


# Re-register UserAdmin
admin.site.unregister( User )
admin.site.register(User, UserAdmin)


admin.site.register( Musician, MusicianAdmin )