1 class <%= migration_name %> < ActiveRecord::Migration
3 class Session < ActiveRecord::Base; end
6 c = ActiveRecord::Base.connection
7 if c.tables.include?('sessions')
8 if (columns = Session.column_names).include?('sessid')
9 rename_column :sessions, :sessid, :session_id
11 add_column :sessions, :session_id, :string unless columns.include?('session_id')
12 add_column :sessions, :data, :text unless columns.include?('data')
13 if columns.include?('created_on')
14 rename_column :sessions, :created_on, :created_at
16 add_column :sessions, :created_at, :timestamp unless columns.include?('created_at')
18 if columns.include?('updated_on')
19 rename_column :sessions, :updated_on, :updated_at
21 add_column :sessions, :updated_at, :timestamp unless columns.include?('updated_at')
25 create_table :sessions, :options => '<%= database == "mysql" ? "ENGINE=MyISAM" : "" %>' do |t|
26 t.column :session_id, :string
28 t.column :created_at, :timestamp
29 t.column :updated_at, :timestamp
31 add_index :sessions, :session_id, :name => 'session_id_idx'
36 raise IrreversibleMigration