21 lines
964 B
Python
21 lines
964 B
Python
from django.core.exceptions import ValidationError
|
|
|
|
|
|
def check_speaker_event_camp_consistency(sender, event, **kwargs):
|
|
if kwargs['action'] == 'pre_add':
|
|
# loop over speakers being added to this event
|
|
for pk in kwargs['pk_set']:
|
|
# check if this speaker belongs to a different event than the event does
|
|
from program.models import Speaker
|
|
speaker = Speaker.objects.get(id=pk)
|
|
if speaker.camp != event.camp:
|
|
raise ValidationError({'speakers': 'The speaker (%s) belongs to a different camp (%s) than the event does (%s)' % (speaker, speaker.camp, event.camp)})
|
|
|
|
|
|
def check_speaker_camp_change(sender, instance, **kwargs):
|
|
if instance.pk:
|
|
for event in instance.events.all():
|
|
if event.camp != instance.camp:
|
|
raise ValidationError({'camp': 'You cannot change the camp a speaker belongs to if the speaker is associated with one or more events.'})
|
|
|