discourse/db/migrate/20130625022454_change_ip_to_inet_in_views.rb
Sam Saffron 30990006a9 DEV: enable frozen string literal on all files
This reduces chances of errors where consumers of strings mutate inputs
and reduces memory usage of the app.

Test suite passes now, but there may be some stuff left, so we will run
a few sites on a branch prior to merging
2019-05-13 09:31:32 +08:00

25 lines
518 B
Ruby

# frozen_string_literal: true
require 'ipaddr'
class ChangeIpToInetInViews < ActiveRecord::Migration[4.2]
def up
table = :views
add_column table, :ip_address, :inet
execute "UPDATE views SET ip_address = inet(
(ip >> 24 & 255) || '.' ||
(ip >> 16 & 255) || '.' ||
(ip >> 8 & 255) || '.' ||
(ip >> 0 & 255)
);"
change_column table, :ip_address, :inet, null: false
remove_column table, :ip
end
def down
raise ActiveRecord::IrreversibleMigration
end
end