"read more" in django posts

Question

I am creating a blog on django/webfaction. Currently my home page displays all the contents from all the posts. I would like to tweak it to show only few lines from each post and each post ending with a "read more" link. How to achieve this? I am new to django and python. Kindly help me.

Code in home.html:

{% block content %}

  {% for post in object_list %}
  <h2>{{ post.title }} </h2>

  <div class = "post_meta">
      on {{ post.created}}
  </div>

  <div class = "post_body">
      {{ post.body|safe|linebreaks}}
  </div>

  {% endfor %}

{% endblock %}

Thanks in advance.

Answer 1

You can use built-in template filter truncate doc

  <div class = "post_body">
      {{ post.body|safe|truncatewords:"50"|linebreaks }}
      <a href="{{ url_for_full_content }}">read more</a>
  </div>

Answer 2

You can see the implementation of the field model SplitField in django-model-utils extention:

from django.db import models
from model_utils.fields import SplitField

class Article(models.Model):
    title = models.CharField(max_length=100)
    body = SplitField()

>>> a = Article.objects.all()[0]
>>> a.body.content
u'some text\n\n<!-- split -->\n\nmore text'
>>> a.body.excerpt
u'some text\n'
>>> unicode(a.body)
u'some text\n\n<!-- split -->\n\nmore text'

It correctly does exactly what you need. Read more in the doc.