Django fails to connect to remote MongoDB server using djongo

问题

I try to connect to use a MongoDB database for the Django project.

So I follow a tutorial for changing the DATABASE from settings.py

# Original
DATABASES = {
    'default': {
        'ENGINE': 'djongo',
        'NAME': 'testDB',
}

Changed to

# From tutorials
 DATABASES = {
     'default': {
         'ENGINE': 'djongo',
         'NAME': 'testDB',
         'USERNAME': 'username',
         'PASSWORD': 'password',
         'HOST': 'myhostname.example',
         'PORT': '27017',
     }
 }

Trying to run

python manage.py makemigrations
python manage.py migrate

All works, but no data in my database

Apparently django went for the localhost:27017 host and created a database there.

Uninstalling MongoDB, just caused makemigrations to fail

pymongo.errors.ServerSelectionTimeoutError: localhost:27017: [WinError 10061] No connection could be made because the target machine actively refused it

I found a solution. https://stackoverflow.com/a/60244703/7637454

To fulfill the answer here this is how you're supposed to configure it now.

DATABASES = {
  'default': {  
    'ENGINE':   'djongo',
    'NAME':     'yourmongodb',
    'CLIENT': {
      'host': 'some-host.or.ip',
      'port': 27017,
      'username': 'youruser',
      'password': 'yourdbpass',
      'authSource': 'yourcollection', # usually admin
    } 
  },
}

回答1:

The answer provided, does not work for me, instead I adopted following approach.

So, behind the scene, the Django uses PyMongo and PyMongo's default configuration are:

class MongoClient(common.BaseObject):
    HOST = "localhost"   # here HOST has the hardcoded value
    PORT = 27017

which are in the following file:

venv/lib/python3.6/site-packages/pymongo/mongo_client.py

replace the harcoded value of HOST to something like

HOST = 'mongodb+srv://<username>:<password>@cluster-name/<dbname>?retryWrites=true&w=majority'

Additionally, we can set the environment variable if we want

HOST = os.getenv('MONGO_DB_URL')

来源：https://stackoverflow.com/questions/60582939/django-fails-to-connect-to-remote-mongodb-server-using-djongo

标签

python

django

mongodb

pymongo

djongo