404 error

[Spyke Lionel]

I have this urlpatterns..

urlpatterns = [

    path('', views.index, name='index'),

    path('<int:album_id>/', views.detail, name='detail'),

]

my index.html looks like this

<h1>Albums to display</h1>

<ul>

    {% for album in all_albums %}

    <li><a href="/music/{{ album_id }}/"> {{ album.album_title }}</a></li>

    {% endfor %}

</ul>

#my index.html simply displays my albums. and the above works just fine

my detail.html looks like this

{{ album }}

#and it works just fine too

my views.py looks like this

def index(request):

    all_albums = Album.objects.all()

    return render(request, 'music/index.html', {'all_albums': all_albums})

def detail(request, album_id):

    try:

        album = Album.objects.get(pk=album_id)

    except Album.DoesNotExist:

        raise Http404("Album does not exist")

    return render(request, 'music/detail.html', {'album': album})

#when ever I click on an album link to get the album details, I get the 404 below:

Page not found (404)

Request Method: GET

Request URL: http://127.0.0.1:8000/music//

Using the URLconf defined in website.urls, Django tried these URL patterns, in this order:

1. admin/

2. music/ [name='index']

3. music/ <int:album_id>/ [name='detail']

The current path, music//, didn't match any of these.

in my detail funtion in views.py, at first I used on request as an argument and it worked just fine to give me the album details (which returned only the album id number), but when i added album_id, so as to get the album details, I got an error. saying music// not found. Now I don't understand how the last forward slash(/) was added.

can I get the explaination to this. Thanks 

[Amitesh Sahay]

At the first glance, I think you havn't created URL pattern for "music". May be....just saying.

Regards,

Amitesh 

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[Kunal Solanke]

I think he have created the music url,

But the {{album_id}} is not properly passed as context from view.

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[Kunal Solanke]

In your template it should be {{album.id}}

or {{album.album_id}} depending how your models are.I am talling about href in anchor tag.

[Amitesh Sahay]

You are trying "http://127.0.0.1:8000/music//"

try something like

http://127.0.0.1:8000/<int_value>/

Regards,

Amitesh 

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[Spyke Lionel]

I don't understand how the url became 

http://127.0.0.1:8000/music//

Instead of http://127.0.0.1:8000/music/<int:alb_id>/

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[Kunal Solanke]

Did you try what I told?

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[Spyke Lionel]

yes I did. it should work properly. 

I just wanna display a list of items after the link has been clicked. 

But it happens that I get http://127.0.0.1:8000/music//

The last forward slash shouldn't have added.

This work when the integer is inserted manually on the address. 

http://127.0.0.1:8000/music/2/

But I want it to happen this way when a link is clicked 

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