How to use long id in Rails applications?
activerecord, bigint, int, long-integer, ruby-on-rails
Solution
Credits to http://moeffju.net/blog/using-bigint-columns-in-rails-migrations
class CreateDemo < ActiveRecord::Migration
def self.up
create_table :demo, :id => false do |t|
t.integer :id, :limit => 8
end
end
end
- See the option `:id => false` which disables the automatic creation of the id field
- The `t.integer :id, :limit => 8` line will produce a 64 bit integer field
Problem
How can I change the (default) type for ActiveRecord's IDs? int is not long enough, I would prefer long. I was surprised that there is no :long for the migrations - does one just use some decimal?