How to sort by list Django

This is a list of jobs and their prices. I need help sorting. I want to make it so that when you click on sort by budget, the list is ordered by budget decrease, and when you click again, it changes to sort by budget increase. I don't know if this requires a new site / findjob / sortbybudget, but I prefer to do it inside the / findjob site. I would appreciate any help or guidance I can read for this.

This is urls.py

from django.conf.urls.defaults import patterns, include, url

from project.preview.models import Task

info_task = {
    'queryset': Task.objects.all(),
    'template_name': 'template.html',
}

urlpatterns = patterns('',
    (r'^findtask/$', 'django.views.generic.list_detail.object_list', dict(info_task)),
)

      

        
        
        
      

    

This: template.html

<div class="sortList">
**Sort by:**
<ul>
    <li class="sort"><a href=""/>Budget</a></li>
    <li class="sort"><a href=""/>Newly Added</li>
</ul>
</div>

<div class="taskListCon">
        {% for object in object_list %}
        <div class="taskCon">
          <div class="Title">
          {{ object.title_description }}
          </div>
          <div class="clientID">                    
          {{object.userid}}
          </div>
          <div class="Price">
          Budget:{{ object.max_budget }}
        </div>
<div>
{% endfor %}