Django support for MongoDB via MongoEngine
Project description
THIS IS UNSTABLE PROJECT, IF YOU WANT TO USE IT - FIX WHAT YOU NEED
Right now we’re targeting to get things working on Django 2.0 and 3.0;
WARNING:
Maybe there is better option for mongo support, take a look at https://nesdis.github.io/djongo/; It’s python3 only and i have not tried it yet, but looks promising.
Working / Django 2.0-3.0
[ok] sessions
[ok] models/fields, fields needs testing
[ok] views
[ok] auth
[?] admin - partially working, some things broken
Current status
Many parts of projects rewritten/removed; Instead of copying django code i try to subclass/reuse/even monkey-patch; Everything listed above is working; admin - just base fuctions like changelist/edit, not tested with every form type; need’s more work.
Some code just plaholder to make things work; django/forms/document_options.py - dirty hack absolutely required to get thigs work with django. It replaces mongo _meta on model/class and provide django-like interface. It get’s replaced after class creation via some metaclass magick.
Fields notes
mongo defaults Field(required=False), changed to django-style defaults -> Field(blank=False), and setting required = not blank in Field.__init__
TODO
Sync some files/docs that removed from mongoengine: https://github.com/seglberg/mongoengine/commit/a34f4c1beb93f430c37da20c8fd96ce02a0f20c1?diff=unified
Add docs for integrating: https://github.com/hmarr/django-debug-toolbar-mongo
Take a look at django-mongotools: https://github.com/wpjunior/django-mongotools
Connecting
In your settings.py file, add following lines:
MONGODB_DATABASES = {
"default": {
"name": database_name,
"host": database_host,
"password": database_password,
"username": database_user,
"tz_aware": True, # if you using timezones in django (USE_TZ = True)
},
}
INSTALLED_APPS += ["django_mongoengine"]
Documents
Inhherit your documents from django_mongoengine.Document, and define fields using django_mongoengine.fields.:
from django_mongoengine import Document, EmbeddedDocument, fields
class Comment(EmbeddedDocument):
created_at = fields.DateTimeField(
default=datetime.datetime.now, editable=False,
)
author = fields.StringField(verbose_name="Name", max_length=255)
email = fields.EmailField(verbose_name="Email")
body = fields.StringField(verbose_name="Comment")
class Post(Document):
created_at = fields.DateTimeField(
default=datetime.datetime.now, editable=False,
)
title = fields.StringField(max_length=255)
slug = fields.StringField(max_length=255, primary_key=True)
comments = fields.ListField(
fields.EmbeddedDocumentField('Comment'), blank=True,
)
Sessions
Django allows the use of different backend stores for its sessions. MongoEngine provides a MongoDB-based session backend for Django, which allows you to use sessions in your Django application with just MongoDB. To enable the MongoEngine session backend, ensure that your settings module has 'django.contrib.sessions.middleware.SessionMiddleware' in the MIDDLEWARE_CLASSES field and 'django.contrib.sessions' in your INSTALLED_APPS. From there, all you need to do is add the following line into your settings module:
SESSION_ENGINE = 'django_mongoengine.sessions' SESSION_SERIALIZER = 'django_mongoengine.sessions.BSONSerializer'
Django provides session cookie, which expires after `SESSION_COOKIE_AGE` seconds, but doesn’t delete cookie at sessions backend, so 'mongoengine.django.sessions' supports mongodb TTL.
How to run example app
poetry install
poetry run pip install -r example/tumblelog/requirements.txt
poetry run python example/tumblelog/manage.py runserverHow to run tests
poetry install
poetry run python -m pytestRelease history Release notifications | RSS feed
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