Best way to filter ListView with drop down form in Django

Question

I\'m trying to filter a ListView based on Users, using a drop down form.

models.py

class Post(models.Model):
    ...
    author = models.ForeignKey(\'aut         


        

Answer 1

In your form, try changing this:

<option value="{{ author }}">{{ author }}</option>

to this:

<option value="{{ author.pk }}">{{ author }}</option>

Then, in your view:

if author_filter:
    result = Post.objects.filter(author_id=int(auth_filter))     

Answer 2

Ohh, it is really oldschool, error prone and time consuming way of doing the things.

Please give a try to django-filter library. And create working fine filters with minimum amount of effort! This allows creating very robust filtering strategies while maintaining clean code.

https://django-filter.readthedocs.io/en/latest/guide/usage.html#

below fast draft:

the filter:

import django_filters

class PostFilter(django_filters.FilterSet):
    class Meta:
        model = Post
        fields = ['author']

the view:

from django_filters.views import FilterView
from somwhere.in.your.project.filtersets import PostFilter

class PostList(FilterView):
    model = Post
    context_object_name = 'posts'
    filter_class = PostFilter

in template:

{% extends "base.html" %}

{% block content %}
    <form action="" method="get">
        {{ filter.form.as_p }}
        <input type="submit" />
    </form>
    {% for obj in filter.qs %}
        {{ obj.name }} - ${{ obj.price }}<br />
    {% endfor %}
{% endblock %}