how to make rails external database calls?

Question

So i\'d like to be able to add an external database to my config/database.yml Then model one table from it.

Is this possible? I haven\'t been able to

Answer 1

First, define the connection information in database.yml:

my_external_db:
  adapter: mysql
  username: ...
  ....

Then, create the model and connect it to the external db

class MyExternalModel < ActiveRecord::Base
  establish_connection(:my_external_db)
  set_table_name 'my_external_table'
end

Answer 2

set_table_name is removed, so instead, you should use: self.table_name