view db/migrate/048_allow_null_version_effective_date.rb @ 754:51d6290d3027 feature_14

added a button to submit filters; removed some unnecessary code; removes ajax observe functionality on filtering.

class AllowNullVersionEffectiveDate < ActiveRecord::Migration
  def self.up
    change_column :versions, :effective_date, :date, :default => nil, :null => true
  end

  def self.down
    raise IrreversibleMigration
  end
end