16 lines
488 B
Ruby
16 lines
488 B
Ruby
class AddEnumerationsPosition < ActiveRecord::Migration
|
|
def self.up
|
|
add_column(:enumerations, :position, :integer, :default => 1) unless Enumeration.column_names.include?('position')
|
|
Enumeration.all.group_by(&:opt).each do |opt, enums|
|
|
enums.each_with_index do |enum, i|
|
|
# do not call model callbacks
|
|
Enumeration.update_all "position = #{i+1}", {:id => enum.id}
|
|
end
|
|
end
|
|
end
|
|
|
|
def self.down
|
|
remove_column :enumerations, :position
|
|
end
|
|
end
|