@events.route('/<int:event_id>/role-invite/<hash>', methods=['GET', 'POST'])
def user_role_invite(event_id, hash):
 event = DataGetter.get_event(event_id)
 user = current_user
 role_invite = DataGetter.get_event_role_invite(event.id, hash, email=user.email)
 if role_invite:
  if role_invite.has_expired():
   delete_from_db(role_invite, 'Deleted RoleInvite')
   flash('Sorry, the invitation link has expired.', 'error')
   return redirect(url_for('.details_view', event_id=event.id))
  if user.has_role(event.id):
   flash('You have already been assigned a Role in the Event.', 'warning')
   return redirect(url_for('events.details_view', event_id=event_id))
  role = role_invite.role
  data = dict()
  data['user_email'] = role_invite.email
  data['user_role'] = role.name
  DataManager.add_role_to_event(data, event.id)
  delete_from_db(role_invite, 'Deleted RoleInvite')
  flash(('You have been added as a %s' % role.title_name))
  return redirect(url_for('.details_view', event_id=event.id))
 else:
  abort(404)

@ events . route ( '/<int:event_id>/role-invite/<hash>' , methods = [ 'GET' , 'POST' ] ) def user_role_invite ( event_id , hash ) : event = DataGetter . get_event ( event_id ) user = current_user role_invite = DataGetter . get_event_role_invite ( event . id , hash , email = user . email ) if role_invite : if role_invite . has_expired ( ) : delete_from_db ( role_invite , 'Deleted RoleInvite' ) flash ( 'Sorry, the invitation link has expired.' , 'error' ) return redirect ( url_for ( '.details_view' , event_id = event . id ) ) if user . has_role ( event . id ) : flash ( 'You have already been assigned a Role in the Event.' , 'warning' ) return redirect ( url_for ( 'events.details_view' , event_id = event_id ) ) role = role_invite . role data = dict ( ) data [ 'user_email' ] = role_invite . email data [ 'user_role' ] = role . name DataManager . add_role_to_event ( data , event . id ) delete_from_db ( role_invite , 'Deleted RoleInvite' ) flash ( ( 'You have been added as a %s' % role . title_name ) ) return redirect ( url_for ( '.details_view' , event_id = event . id ) ) else : abort ( 404 )
accept user-role invite for the event .