django-mongoengine-filter

django-mongoengine-filter is a reusable Django application for allowing users to filter mongoengine querysets dynamically. It's very similar to popular django-filter library and is designed to be used as a drop-in replacement (as much as it's possible) strictly tied to MongoEngine.

Full documentation on Read the docs.

Requirements

• Python 3.7, 3.8, 3.9, 3.10 or 3.11.
• MongoDB 3.x, 4.x, 5.x.
• Django 2.2, 3.0, 3.1, 3.2, 4.0 or 4.1.

Installation

Install using pip:

pip install django-mongoengine-filter

Or latest development version:

pip install https://github.com/barseghyanartur/django-mongoengine-filter/archive/master.zip

Usage

Sample document

from mongoengine import fields, document
from .constants import PROFILE_TYPES, PROFILE_TYPE_FREE, GENDERS, GENDER_MALE

class Person(document.Document):

    name = fields.StringField(
        required=True,
        max_length=255,
        default="Robot",
        verbose_name="Name"
    )
    age = fields.IntField(required=True, verbose_name="Age")
    num_fingers = fields.IntField(
        required=False,
        verbose_name="Number of fingers"
    )
    profile_type = fields.StringField(
        required=False,
        blank=False,
        null=False,
        choices=PROFILE_TYPES,
        default=PROFILE_TYPE_FREE,
    )
    gender = fields.StringField(
        required=False,
        blank=False,
        null=False,
        choices=GENDERS,
        default=GENDER_MALE
    )

    def __str__(self):
        return self.name

Sample filter

import django_mongoengine_filter

class PersonFilter(django_mongoengine_filter.FilterSet):

    profile_type = django_mongoengine_filter.StringFilter()
    ten_fingers = django_mongoengine_filter.MethodFilter(
        action="ten_fingers_filter"
    )

    class Meta:
        model = Person
        fields = ["profile_type", "ten_fingers"]

    def ten_fingers_filter(self, queryset, name, value):
        if value == 'yes':
            return queryset.filter(num_fingers=10)
        return queryset

Sample view

With function-based views:

def person_list(request):
    filter = PersonFilter(request.GET, queryset=Person.objects)
    return render(request, "dfm_app/person_list.html", {"object_list": filter.qs})

Or class-based views:

from django_mongoengine_filter.views import FilterView

class PersonListView(FilterView):

    filterset_class = PersonFilter
    template_name = "dfm_app/person_list.html"

Sample template

<ul>
{% for obj in object_list %}
    <li>{{ obj.name }} - {{ obj.age }}</li>
{% endfor %}
</ul>

Sample requests

• GET /persons/
• GET /persons/?profile_type=free&gender=male
• GET /persons/?profile_type=free&gender=female
• GET /persons/?profile_type=member&gender=female
• GET /persons/?ten_fingers=yes

Development

Testing

To run tests in your working environment type:

pytest -vrx

To test with all supported Python versions type:

tox

Running MongoDB

The easiest way is to run it via Docker:

docker pull mongo:latest
docker run -p 27017:27017 mongo:latest

Writing documentation

Keep the following hierarchy.

=====
title
=====

header
======

sub-header
----------

sub-sub-header
~~~~~~~~~~~~~~

sub-sub-sub-header
^^^^^^^^^^^^^^^^^^

sub-sub-sub-sub-header
++++++++++++++++++++++

sub-sub-sub-sub-sub-header
**************************

License

GPL-2.0-only OR LGPL-2.1-or-later

Support

For any security issues contact me at the e-mail given in the Author section.

For overall issues, go to GitHub.

Author

Artur Barseghyan <[email protected]>