Minimal filter and search functionality for django list views.
Project description
django-minifilter
The django-minifilter package provides minimal filter functionality for list views, including:
-
a filter search box
-
filter links
The package is compatible with django's pagination.
Here's an example of a very basic list-view, showing a search box that filters by name, and links that filter by year and month:
Installation
The django-minifilter package is available on pypi and can be installed via pip:
pip install django-minifilter
or via pipenv:
pipenv install django-minifilter
Then add minifilter to INSTALLED_APPS in your django settings.
Quick example
Suppose we have the following simple model, part of an application called myapp:
from django.db import models
from django.utils import timezone
class MyModel(models.Model):
name = models.CharField(max_length=100)
date = models.DateField(default=timezone.now)
Here's how we would create a generic list view with a search box filter, links that filter by year and month, and pagination:
from django.views import generic
from minifilter.mixins import FilterMixin
from myapp.models import MyModel
class MyListView(FilterMixin, generic.ListView):
model = MyModel
template_name = 'myapp/mymodel_list.html'
paginate_by = 10
search_fields = ['name']
filter_parameters = [
# (url-parameter-name, lookup)
('year', 'start_date__year'),
('month', 'start_date__month'),
]
And here's a simple template for the above:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>My filtered list view</title>
</head>
<body>
{% include 'minifilter/includes/search.html' %}
{% include 'minifilter/includes/parameters.html' %}
<div>
<ol>
{% for obj in page_obj %}
<li>{{ obj.name }} - {{ obj.date }}</li>
{% endfor %}
</ol>
</div>
{% include 'minifilter/includes/pagination.html' %}
</body>
</html>
Instead of a generic class-based view, we could also create a function-based list view:
from django.template.response import TemplateResponse
from django.core.paginator import Paginator
from minifilter.filters import search_filter, parameter_filter
from myapp.models import MyModel
def my_list_view(request):
queryset = MyModel.objects.all()
# filter by search term
queryset, search_form = search_filter(
queryset=queryset, request=request,
search_fields=['name'])
# filter queryset based on url query parameters
queryset, parameter_choices = parameter_filter(
queryset=queryset, request=request,
filter_parameters=[
('year', 'start_date__year'),
('month', 'start_date__month')])
# paginate filtered queryset
# see: https://docs.djangoproject.com/en/stable/topics/pagination/
paginator = Paginator(object_list=queryset, per_page=10)
page_number = request.GET.get('page')
page_obj = paginator.get_page(page_number)
# build response
return TemplateResponse(
request, template='myapp/mymodel_list.html',
context=dict(
page_obj=page_obj,
parameter_choices=parameter_choices,
search_form=search_form,
)
)
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