Re: How to access the key attributes of a model

Hi Alberto,

I'm guessing `def blog(request):` is actually `blog_category_posts`, right? Because you have `<slug>` on your URL, our view will receive it as another parameter, after request. So it should be `def blog_category_posts(requests, slug):` and then you can get the slug, filter the posts and return them to the template.

On Thu, Mar 1, 2018 at 7:37 PM, Alberto Sanmartin <albertosanmartinmartinez@gmail.com> wrote:

This is mi code:

models.py:

@autoconnect

class Category(models.Model):

    name = models.CharField(max_length=100)

    slug = models.CharField(max_length=100, blank=True)

    description = models.CharField(max_length=200)

    creation_date = models.DateTimeField(auto_now_add=True)

    def __unicode__(self):

        return self.name

    def pre_save(self):

        """metodo de la clase Category para calcular el slug de una categoria"""

        self.slug = self.name.replace(" ", "_").lower()

        print(self.slug)

@autoconnect

class Post(models.Model):

    Status = ((1, "Publicado"), (2, "Borrador"), (3, "Eliminado"))

    status = models.IntegerField(choices=Status, default=2, blank=False)

    title = models.CharField(max_length=100, blank=False)

    slug = models.CharField(max_length=100, default=' ', blank=True)

    description = models.CharField(max_length=200, blank=False)

    content = models.TextField(default=" ", blank=False)

    category = models.ForeignKey(Category, default=1, blank=False)

    creation_date = models.DateTimeField(auto_now_add=True)

    image = models.ImageField(upload_to="photos", default='/image.jpg', blank=False)

    author = models.ForeignKey(User, default=1)

views.py:

def blog(request):

    posts = models.Post.objects.filter(status=1).order_by("-creation_date")

    print(posts)

    categories = models.Category.objects.order_by("name")

    context = {

        "posts":posts,

        "categories":categories

    }

    return render(request, "blog.html", context)

urls.py:

url(r'^blog/categorias/(?P<slug>\w+)/$', views.blog_category_posts, name='blog_category_posts'),

blog.html:

{% for post in posts %}

    <a href="{% url 'detail_post' slug=post.slug %}">{{ post.title }}</a>

    <p>{{ post.description }}</p>

    <p><a href="{% url 'blog_category_posts' slug=post.category.slug %}">{{ post.category.name }}</a></p>

    <p><a href="{% url 'blog_author_posts' username=post.author.username %}">{{ post.author.username }}</a></p>

    <p>{{ post.creation_date }}</p>

{% endfor %}

When I click on the link of the category in the blog.html, I want to be able to pass the attribute slug to url, but it does not work.

Please help

Thanks in advance. 

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