modify the name of the :id to :another_id in rails 3 -

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well googled question couldn't find or it's not correct question..

the issue need modify primary_key name of database :id :another_id, in project need use pgrouting , contains several plsql functions , these functions uses primary-key name gid , instead of modify plsql functions better change id name, , thinking migration becouse thought it's rails way.

is possible, , how can ??

thanks in advance , sorry english.

edit

  create_table :pruebas, primary_key: :gid |t|     t.string :name     t.timestamps   end

this trick, , active record generate , uses pk gid.

sorry if question not clear.. gracias por las respuestas.

to set primary key yourself, when create table, do:

create_table(:table_name, primary_key: 'gid') |t|    ... end

and need define primary key name in model:

self.primary_key = 'gid'

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