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Copyright (c) 2014, Friedrich Paetzke (f.paetzke@gmail.com) All rights reserved.

Django-db-call creates a database configuration for a django project from command line input.

It supports MySQL and PostgreSQL⁽¹⁾ right now.

It comes with two functions:

  • from_call()

  • from_calls()

You can install django-db-call via pip.

$ pip install django-db-call

An usage example:

from django_db_call import from_call

DATABASES = from_call('mysql -h localhost -u root -p my_sweet_secret -D my_db')

That will become:

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.mysql',
        'PORT': '',
        'PASSWORD': 'my_sweet_secret',
        'HOST': 'localhost',
        'NAME': 'my_db',
        'USER': 'root'
    }
}

You can change the connection name by passing a name for it:

DATABASES = from_call('mysql', connection='not_default')

And that is equivalent to:

DATABASES = {
    'not_default': {
        'ENGINE': 'django.db.backends.mysql',
        'HOST': '',
        'NAME': '',
        'PASSWORD': '',
        'PORT': '',
        'USER': ''
    }
}

You can also pass additional arguments to be used in OPTIONS.

DATABASES = from_call('mysql', autocommit=True)

And that will give you:

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.mysql',
        'NAME': '',
        'USER': '',
        'PASSWORD': '',
        'HOST': '',
        'PORT': '',
        'OPTIONS': {
            'autocommit': True,
        },
    }
}

For creating multiple databases connections you can use from_calls().

from django_db_call import from_calls

DATABASES = from_calls(
    [
        ['mysql -h localhost -u root -p my_sweet_secret -D my_db'],
        ['mysql -h localhost -u root -p my_sweet_secret -D archive',
            {'connection': 'archive'}],
    ])

And that will result in:

DATABASES = {
    'default': {
        'PASSWORD': 'my_sweet_secret',
        'ENGINE': 'django.db.backends.mysql',
        'PORT': '',
        'USER': 'root',
        'HOST': 'localhost',
        'NAME': 'my_db'
    },
    'archive': {
        'PASSWORD': 'my_sweet_secret',
        'ENGINE': 'django.db.backends.mysql',
        'PORT': '',
        'USER': 'root',
        'HOST': 'localhost',
        'NAME': 'archive'
    }
}

⁽¹⁾ It seems it is not possible to pass the password to use a specific database on psql. You have pass it explicitly.

DATABASES = from_call('psql', password='my_sweet_secret')
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