from festival.models import *

def clean_participants():
    unique_participants = []
    participants = Participant.objects.all()
    for p in participants:
        if not p.name in unique_participants:
            unique_participants.append(p.name)
    for u in unique_participants:
        dupes = participants.filter(name=u)
        to_keep = dupes[0]
        meeting_ids = []
        for d in dupes:
            to_keep.meetings.add(d.meeting.id)
        to_keep.save()
        for d in dupes[1:]:
            d.delete()
        print u