From cf890c110e159de16d54a59dc878272776d38514 Mon Sep 17 00:00:00 2001 From: Tim Graham Date: Sat, 23 Feb 2013 16:01:43 -0500 Subject: [PATCH] Added an example of "default" database dictionary left blank; refs #19775. Thanks wsmith323 for the patch. --- docs/topics/db/multi-db.txt | 29 ++++++++++++++++++++++++----- 1 file changed, 24 insertions(+), 5 deletions(-) diff --git a/docs/topics/db/multi-db.txt b/docs/topics/db/multi-db.txt index dd7e59b99e..8150e498de 100644 --- a/docs/topics/db/multi-db.txt +++ b/docs/topics/db/multi-db.txt @@ -20,11 +20,7 @@ documentation. Databases can have any alias you choose. However, the alias ``default`` has special significance. Django uses the database with -the alias of ``default`` when no other database has been selected. If -the concept of a ``default`` database doesn't make sense in the context -of your project, you need to be careful to always specify the database -that you want to use. Django requires that a ``default`` database entry -be defined, but the parameters can be left blank if it will not be used. +the alias of ``default`` when no other database has been selected. The following is an example ``settings.py`` snippet defining two databases -- a default PostgreSQL database and a MySQL database called @@ -47,6 +43,29 @@ databases -- a default PostgreSQL database and a MySQL database called } } +If the concept of a ``default`` database doesn't make sense in the context +of your project, you need to be careful to always specify the database +that you want to use. Django requires that a ``default`` database entry +be defined, but the parameters dictionary can be left blank if it will not be +used. The following is an example ``settings.py`` snippet defining two +non-default databases, with the ``default`` entry intentionally left empty:: + + DATABASES = { + 'default': {}, + 'users': { + 'NAME': 'user_data', + 'ENGINE': 'django.db.backends.mysql', + 'USER': 'mysql_user', + 'PASSWORD': 'superS3cret' + }, + 'customers': { + 'NAME': 'customer_data', + 'ENGINE': 'django.db.backends.mysql', + 'USER': 'mysql_cust', + 'PASSWORD': 'veryPriv@ate' + } + } + If you attempt to access a database that you haven't defined in your :setting:`DATABASES` setting, Django will raise a ``django.db.utils.ConnectionDoesNotExist`` exception.