old_contents: from django.conf.urls import url
  
  from bluebottle.events.views import (
      EventList, EventDetail,
      EventTransitionList,
      ParticipantList, ParticipantDetail,
      ParticipantTransitionList
  )
  
  urlpatterns = [
      url(r'^$', EventList.as_view(), name='event-list'),
      url(r'^(?P<pk>[\d-]+)$', EventDetail.as_view(), name='event-detail'),
      url(
          r'^transitions$',
          EventTransitionList.as_view(),
          name='event-transition-list'
      ),
  
      url(r'participants$', ParticipantList.as_view(), name='participant-list'),
      url(r'^participants/(?P<pk>[\d]+)$', ParticipantDetail.as_view(), name='participant-detail'),
      url(
          r'^participants/transitions$',
          ParticipantTransitionList.as_view(),
          name='participant-transition-list'
      ),
  ]
  
new_contents: from django.conf.urls import url
  
  from bluebottle.events.views import (
      EventList, EventDetail,
      EventTransitionList,
      ParticipantList, ParticipantDetail,
      ParticipantTransitionList
  )
  
  urlpatterns = [
      url(r'^$', EventList.as_view(), name='event-list'),
      url(r'^/(?P<pk>[\d-]+)$', EventDetail.as_view(), name='event-detail'),
      url(
          r'^/transitions$',
          EventTransitionList.as_view(),
          name='event-transition-list'
      ),
  
      url(r'/participants$', ParticipantList.as_view(), name='participant-list'),
      url(r'^/participants/(?P<pk>[\d]+)$', ParticipantDetail.as_view(), name='participant-detail'),
      url(
          r'^/participants/transitions$',
          ParticipantTransitionList.as_view(),
          name='participant-transition-list'
      ),
  ]
  
subject: Fix event urls