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Nate Hawk
13,229 PointsDjango Basics - Karaoke - code not passing tests in website and unable to migrate in workspace
My code does not appear to be passing the tests when I attempt a submission, I also cannot get to the testing process in the workspace because it keeps throwing this exception "AttributeError: 'int' object has no attribute 'total_seconds' ".
I am not sure what happened, but I have been trying to fix this code for over a week now and it never seems to work for me. Before I changed some things 4/5 of the tests were failing all do to songs_song.length. Frustrating process so far.
from django.db import models
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)
duration = models.IntegerField()
def __str__(self):
return '{} by {}'.format(self.title, self.artist)
from django.http import HttpResponse
from django.shortcuts import render, get_object_or_404
from .models import Song, Performer
def song_list(request):
songs = Song.objects.all()
return render(request, 'songs/song_list.html', {'songs': songs})
def song_detail(request, pk):
song = get_object_or_404(Song, pk=pk)
return render(request, 'songs/song_detail.html', {'song': 'song'})
def performer_detail(request, song_pk, performer_pk):
performer = get_object_or_404(Performer, song_id=song_pk, pk=performer_pk)
return render(request, 'songs/performer_detail.html', {'performer': performer})
{% extends 'base.html' %}
{% block title %}{{ performer }}{% endblock %}
{% block content %}
<h2>{{ performer }}</h2>
<ul>
{% for song in performer.song_set.all %}
<li>{{ song }}</li>
{% endfor %}
</ul>
{% endblock %}
2 Answers
Chris Freeman
Treehouse Moderator 68,441 PointsThe attribute 'total_seconds' is found on a timedelta object (see docs). The exception "AttributeError: 'int' object has no attribute 'total_seconds'" could mean you have an int where a timedelta object should be.
Also, be aware that while the README.TXT mentions "duration" as an field of song, the test test_song_string (karaoke/songs/tests.py) uses length as the keyword attribute for the duration. Your model will need to updated to pass the test.
Nate Hawk
13,229 PointsI fixed it, looks like a) I needed to use length instead of duration, stubbornness on my part, and b) my performer_detail view needed to look like this:
def performer_detail(request, pk):
performer = get_object_or_404(Performer, pk=pk)
performer.song_set.all()
return render(request, 'songs/performer_detail.html', {'performer': performer})
I was just missing the "performer.song_set.all()", however I never would have figured that out without looking at other peoples problems. I don't remember seeing anything about that in the course, so that is a little frustrating.
[MOD: added ```python markdown wrapper for formatting -cf]
Chris Freeman
Treehouse Moderator 68,441 PointsNate, great progress so far. Are you getting through all the test yet?
in looking at your song_detail view, you are passing the string 'song' in the context instead of the variable song. Making this fix will pass the test test_song_detail_view:
python manage.py test songs.tests.ViewTests.test_song_detail_view
Creating test database for alias 'default'...
.
----------------------------------------------------------------------
Ran 1 test in 0.092s
OK