db/migrate/069_add_what_doing.rb


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class AddWhatDoing < ActiveRecord::Migration
    def self.up
        add_column :outgoing_messages, :what_doing, :string
        add_index :outgoing_messages, :what_doing
        OutgoingMessage.update_all "what_doing = 'normal_sort'"
        change_column :outgoing_messages, :what_doing, :string, :null => false
    end

    def self.down
        remove_column :outgoing_messages, :what_doing
    end
end