Karaoke project

from django.db import models

# Write your models here
class Performer(models.Model):
    name = models.CharField(max_length=255)

    def __str__(self):
        return self.name


class Song(models.Model):
    title = models.CharField(max_length=255)
    artist = models.CharField(max_length=255)
    performer = models.ForeignKey(Performer, on_delete=models.CASCADE)
    length = models.IntegerField(default=0)

    def __str__(self):
        return "{} by {}".format(self.title, self.artist)

from django.conf.urls import include, url
from django.contrib import admin
from django.urls import path
from django.contrib.staticfiles.urls import staticfiles_urlpatterns
from . import views

urlpatterns = [
    path('admin/', admin.site.urls),
    path('songs/', include('songs.urls', namespace='songs')),
    url('', views.home, name='home'),
]

from django.urls import path

from . import views

app_name='songs'
urlpatterns = [
    path('', views.song_list, name='list'),
    path('song<int:song_pk>/', views.song_detail, name='detail'),
    path('performer<int:performer_pk>/', views.performer_detail, name='performer'),
]

from django.shortcuts import get_object_or_404, render
from .models import Song, Performer


def home(request):
    return render(request, 'home.html')

def song_list(request):
    songs = Song.objects.all()
    return render(request, 'songs/song_list.html', {'songs': songs})

def song_detail(request, song_pk):
    song = get_object_or_404(Song, pk=song_pk)
    return render(request, 'songs/song_detail.html', {'song': song})

def performer_detail(request, performer_pk):
    performer = get_object_or_404(Performer, pk=performer_pk)
    songs = Song.objects.filter(performer=performer)
    print(performer)
    return render(request, 'songs/performer_detail.html', {'performer': performer, 'songs': songs})

{% extends 'base.html' %}

{% block title %}Upcoming Songs{% endblock %}

{% block content %}
<h2>Upcoming Songs</h2>

<ul>
    {% for song in songs %}
    <li><a href="{% url 'songs:detail' song_pk=song.pk %}">{{ song }}</a> performed by <a href="{% url 'songs:performer' song.performer.pk %}">{{ song.performer }}</a></li>
    {% endfor %}
</ul>
{% endblock %}

{% extends 'base.html' %}

{% block title %}{{ song.title }}{% endblock %}

{% block content %}
<h2>{{ song.title }}</h2>

<p>By {{ song.artist }}</p>
<p>Sung by <a href="{% url 'songs:performer' performer_pk=song.performer.pk %}">{{ song.performer }}</a></p>
{% endblock %}

{% extends 'base.html' %}
{% block title %}{{ performer }}{% endblock %}

{% block content %}
<h2>{{ performer }}</h2>
{% for song in songs %}
    <li><a href="{% url 'songs:detail' song.pk %}">{{ song }}</a></li>
    {% endfor %}
{% endblock %}