Question

Sorry for noob question.
Assuming we have a model with relation:

  class Book(models.Model):
     name = models.CharField(max_length=300)
     category = models.ForeignKey(Category)

  class Category(models.Model):
     name = models.CharField(max_length=300)

Is it possible to somehow group results so in the template we can have something like this?

<ul>
   {% for category in book_categories%}
              <li> 
                  {{category.name}} 
                   <br/>  
                  {% for book in category%}
                      {{book.name}} , {{book.author}}, etc...
                  {% endfor %} 
             </li>
   {% endfor %}           
</ul>

or am I making things complicated and there is an easier way to achieve html output like that?

Answer 1

Pass the categories to your template, and then you can do something like this

<ul>
   {% for category in categories %}
              <li> 
                  {{category.name}} 
                   <br/>  
                  {% for book in category.book_set.all %}
                      {{book.name}} , {{book.author}}, etc...
                  {% endfor %} 
             </li>
   {% endfor %}           
</ul>