タンゴと "好きなボタン"が動作しない

Question

私はこのチュートリアルに従いました http://www.tangowithdjango.com/book17/chapters/ajax.html#add-a-like-button しかし、私のようなカウントはクリックしても増えません。

は、ここに私のコード

views.py

def like_post(request): 

    post_id = None 
    if request.method == 'GET': 
     post_id = request.GET['post.pk'] 

    likes = 0 
    if post_id: 
     post = Post.objects.get(id=int(post_id)) 
     if post: 
      likes = post.likes + 1 
      post.likes = likes 
      post.save() 

    return HttpResponse(likes) 

urls.py

url(r'like_post/$', views.like_post, name='like_post'), 

Models.py

class Post(models.Model): 
    author = models.ForeignKey('auth.User') 
    title = models.CharField(max_length=200) 
    text = models.TextField() 
    created_date = models.DateTimeField(default=timezone.now) 
    published_date = models.DateTimeField(blank=True,null=True) 
    likes = models.IntegerField(default=0) 

    def publish(self): 
     self.published_date = timezone.now() 
     self.save() 

    def __str__(self): 
     return self.title 

post_deatil.html

です

<strong id="like_count">{{ post.likes }}</strong> people like this category 

{% if user.is_authenticated %} 
     <button id="likes" data-post_id="{{post.id}}" class="btn btn-primary" type="button"> 
     <span class="glyphicon glyphicon-thumbs-up"></span> 
     Like 
     </button> 
{% endif %} 

ブログajax.js

$('#likes').click(function(){ 
    var postid; 
    catid = $(this).attr("data-post_id"); 
    $.get('/blog/like_post/', {post_id: postid}, function(data){ 
       $('#like_count').html(data); 
       $('#likes').hide(); 
    }); 
}); 

コンソールメッセージ

Internal Server Error: /blog/like_post/ 
Traceback (most recent call last): 
    File "/home/bharat/.local/lib/python3.5/site-packages/django/utils/datastructures.py", line 83, in __getitem__ 
    list_ = super(MultiValueDict, self).__getitem__(key) 
KeyError: 'post.pk' 

During handling of the above exception, another exception occurred: 

Traceback (most recent call last): 
    File "/home/bharat/.local/lib/python3.5/site-packages/django/core/handlers/exception.py", line 42, in inner 
    response = get_response(request) 
    File "/home/bharat/.local/lib/python3.5/site-packages/django/core/handlers/base.py", line 249, in _legacy_get_response 
    response = self._get_response(request) 
    File "/home/bharat/.local/lib/python3.5/site-packages/django/core/handlers/base.py", line 187, in _get_response 
    response = self.process_exception_by_middleware(e, request) 
    File "/home/bharat/.local/lib/python3.5/site-packages/django/core/handlers/base.py", line 185, in _get_response 
    response = wrapped_callback(request, *callback_args, **callback_kwargs) 
    File "/home/bharat/.local/lib/python3.5/site-packages/django/contrib/auth/decorators.py", line 23, in _wrapped_view 
    return view_func(request, *args, **kwargs) 
    File "/home/bharat/Desktop/DiggingIntoDjango-TreasuregramSampleApp-master/my-first-blog-master/blog/views.py", line 103, in like_post 
    post_id = request.GET['post.pk'] 
    File "/home/bharat/.local/lib/python3.5/site-packages/django/utils/datastructures.py", line 85, in __getitem__ 
    raise MultiValueDictKeyError(repr(key)) 
django.utils.datastructures.MultiValueDictKeyError: "'post.pk'" 
Internal Server Error: /blog/like_post/ 
Traceback (most recent call last): 
    File "/home/bharat/.local/lib/python3.5/site-packages/django/utils/datastructures.py", line 83, in __getitem__ 
    list_ = super(MultiValueDict, self).__getitem__(key) 
KeyError: 'post.pk' 

During handling of the above exception, another exception occurred: 

Traceback (most recent call last): 
    File "/home/bharat/.local/lib/python3.5/site-packages/django/core/handlers/exception.py", line 42, in inner 
    response = get_response(request) 
    File "/home/bharat/.local/lib/python3.5/site-packages/django/core/handlers/base.py", line 249, in _legacy_get_response 
    response = self._get_response(request) 
    File "/home/bharat/.local/lib/python3.5/site-packages/django/core/handlers/base.py", line 187, in _get_response 
    response = self.process_exception_by_middleware(e, request) 
    File "/home/bharat/.local/lib/python3.5/site-packages/django/core/handlers/base.py", line 185, in _get_response 
    response = wrapped_callback(request, *callback_args, **callback_kwargs) 
    File "/home/bharat/.local/lib/python3.5/site-packages/django/contrib/auth/decorators.py", line 23, in _wrapped_view 
    return view_func(request, *args, **kwargs) 
    File "/home/bharat/Desktop/DiggingIntoDjango-TreasuregramSampleApp-master/my-first-blog-master/blog/views.py", line 103, in like_post 
    post_id = request.GET['post.pk'] 
    File "/home/bharat/.local/lib/python3.5/site-packages/django/utils/datastructures.py", line 85, in __getitem__ 
    raise MultiValueDictKeyError(repr(key)) 
django.utils.datastructures.MultiValueDictKeyError: "'post.pk'" 
[19/Apr/2017 13:03:36] "GET /blog/like_post/ HTTP/1.1" 500 16637 
[19/Apr/2017 13:03:36] "GET /blog/like_post/ HTTP/1.1" 500 16637 

This is how i get, but after clicking on like nothing happens

あなたにviews.py使用で

Answer 1

ありがとう：

post_id = None 
if request.method == 'GET': 
    post_id = request.GET['post_id'] 

の代わりに：

post_id = None 
if request.method == 'GET': 
    post_id = request.GET['post.pk'] 

これは、あなたのブログ-ajax.jsには、パラメータとGET-電話をかけるされているため、 'post_idの' とない 'post.pk'