Reverse for 'likes' with keyword arguments '{'pk': 1}' not found. 1 pattern(s) tried: ['datasecurity/likes/<int:pk>'] Like buttton error in django

Question

registration and login page is working properly but mine like button is not working .. I don't know why... Can somebody help me to solve this issue … it will be great help please help Thank you!

1. views.py`

    from django.shortcuts import render, get_object_or_404
    from datasecurity.models import Post
    from django.urls import reverse
    from django.http import HttpResponseRedirect
    from django.contrib.auth.decorators import login required
   
   
    # Create your views here.
    def datasecurity(request):
         allPosts= Post.objects.all()
         context={'allPosts': allPosts}
          return render(request, 'datasecurity/data.html',context=context)
   
    def blogHome(request, slug):
         post=Post.objects.filter(slug=slug).first()
         context={"post":post}
         return render(request, "datasecurity/blogHome.html", context)
   
    @login_required
    def likes(request, pk):
         post=get_object_or_404(Post, id=request.POST.get('post_id'))
         post.likes.add(request.user)
         return HttpResponseRedirect(reverse('datasecurity:blogHome', args=str(pk)))
   

2. urls.py

   from django.conf.urls import url
   
   from . import views
   
   app_name = 'datasecurity'
   
   urlpatterns = [
           url(r'^$', views.datasecurity, name="datasecurity"),
           url(r'^datasecurity/(?P<slug>[^/]+)', views.blogHome, name='blogHome'),
           url(r'^likes/<int:pk>', views.likes, name = "likes"),
   
   ]
   

3. data.html

    {% extends 'careforallapp/navbar.html' %}
    {% block body_block %}
     {% load static %}
   

   Welcome to Data Security

       {% for post in allPosts  %}
   
        <div class="line-dec"></div>
        <span
          >This is a Bootstrap v4.2.1 CSS Template for you. Edit and use
          this layout for your site. Updated on 21 May 2019 for repeated main menu HTML code.</span
        >
      </div>
      <div class="left-image-post">
        <div class="row">
          <div class="col-md-6">
            <div class="left-image">
              {% if post.img %}
                <img src="{{ post.img.url }}" alt="" />
              {% endif %}
            </div>
          </div>
          <div class="col-md-6">
            <div class="right-text">
              <h4>{{post.title}}</h4>
              <h6>Article  by {{post.author}}</h6>
              <h2>{{post.datetime}}</h2>
   
              <p>
                {{post.content|safe | truncatechars:280}}
              </p>
   
              <from action = "{% url 'datasecurity:likes' pk=post.pk %}" method = "POST">
                {% csrf_token %}
                <button type="submit" name="post_id" value = "{{ post_id }}" class="btn"> Like 
              </button>
              </form>
   
              <div class="white-button">
                <a href="{% url 'datasecurity:blogHome' slug=post.slug %}">Read More</a>
              </div><br>
            </div>
               {% endfor %}
   

4. error msg <from action = "{% url 'datasecurity:likes' pk=post.pk %}" method = "POST">

• Reverse for 'likes' with keyword arguments '{'pk': 1}' not found. 1 pattern(s) tried: ['datasecurity/likes/int:pk']

this msg was highlighted when I debug the the code. So can someone tell me please what i missed in my code... Thank You!

Answer 1

You are not taking the pk argument from view. Change your view to:

@login_required
 def likes(request, pk):
      post=get_object_or_404(Post, id=pk)

and the url to:

url(r'^likes/(?P<pk>\d+)/', views.likes, name = "likes"),

notice the used regular expression in the url.