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POis there a way to use django generic views and some smart urlpatterns for quick ordering/sorting of queries?
 

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  1. POis there a way to use django generic views and some smart urlpatterns for quick ordering/sorting of queries?
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    <p>let's assume I have a django model like this:</p> <pre><code>class Event(CommonSettings) : author = models.ForeignKey(User) timestamp = models.DateTimeField(auto_now_add=True) event_type = models.ForeignKey(Event_Type, verbose_name="Event type") text_field = models.TextField() flag_box = models.BooleanField() time = models.TimeField() date = models.DateField() project = models.ForeignKey(Project) </code></pre> <p>now, by default, I have a view where I sort all events by time &amp; date:</p> <pre><code>event_list = Event.objects.filter().order_by('-date', '-time') </code></pre> <p>however, maybe the user wants to sort the events by time only, or by the date, or maybe in ascending order instead of descending. I know that I can create urlpatterns that match all these cases and then pass on the these options to my view, however I feel like I'm reinventing the wheel here. the django admin site can do all of this out of the box.</p> <p>So here's my question: is there a clever, easy way of getting this done in a generic way, or do I have to hard code this for my models / views / templates?</p> <p>and yes, I did find solutions like this (https://gist.github.com/386835) but this means you use three different projects to achieve one thing - this seems to be a too complicated solution for such a simple thing.</p> <p><strong>EDIT1:</strong> how do I have to change the template so that I can combine multiple filters? Right now I have </p> <pre><code>&lt;a href="?sort=desc"&gt;Desc&lt;/a&gt; &lt;a href="?sort=asc"&gt;Asc&lt;/a&gt; </code></pre> <p>but I want to allow the user to also change number of entries that get displayed. So I have:</p> <pre><code>&lt;a href="?order_by=date"&gt;order by date&lt;/a&gt; &lt;a href="?order_by=name"&gt;order by name&lt;/a&gt; </code></pre> <p>This works all fine, but if I click on 'order by date' and then I click on 'Asc', then my previously selected order disappears. That's not what I want. I want the user to be able to combine some options but not others.</p> <p><strong>EDIT2:</strong> unfortunately your solution doesn't work with </p> <pre><code>from django.views.generic.list_detail import object_list </code></pre> <p>and it's</p> <pre><code>paginate_by </code></pre> <p>option.</p> <p>I tried:</p> <pre><code>&lt;a href="?sort={{sort_dir}}?page={{ page_obj.previous_page_number }}" class="prev"&gt;prev&lt;/a&gt; &lt;a href="?sort={{sort_dir}}?page={{ page_obj.next_page_number }}" class="next"&gt;{% trans "next" %}&lt;/a&gt; </code></pre> <p>but the links then just don't work (nothing happens). maybe you need to do something special with "object_list"?</p>
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