Python-сообщество

DoesNotExist at /trainers/vasyuta-anton/
Cities matching query does not exist.

trainers_town = Cities.objects.get(slug =  slug)

from django.conf.urls import url, include
from trainers.views import viewtrainers, viewperson

app_name = 'trainers'
urlpatterns = [
    url(r'^(?P<slug>[-\w]+)/$', viewtrainers, name='viewtrainers'),
    url(r'^(?P<slug>[-\w]+)/$', viewperson, name='viewperson'),
]
[b]views.py[/b]

from django.shortcuts import render
from trainers.models import Trainer, Cities

# Вывод списка всех участников привязанных к определенному городу

def viewtrainers(request, slug):
    trainers_town = Cities.objects.get(slug =  slug)
    trainers = Trainer.objects.all()
    return render(request, "trainers.html", {'trainers_town':trainers_town, 'trainers':trainers })

def viewperson(request, slug):
    trainer = Trainer.objects.get(slug = slug)
    return render(request, "trainer_person.html", {'trainer':trainer})

from django.db import models
from django.utils.text import slugify

class Cities(models.Model):
    city = models.CharField(max_length=50, verbose_name="Город")
    slug = models.SlugField(unique = True, default = '')

    def __str__(self):
        return self.city

class Trainer(models.Model):
    city = models.ForeignKey('Cities', verbose_name="Город")
    name = models.CharField(max_length=100, verbose_name="Ф.И.О")
    slug = models.SlugField(unique = True, default = '')

    def __str__(self):
        return self.name

url(r'^persons/(?P<slug>[-\w]+)/$', viewperson, name='viewperson')