debianize-mobilizon/priv/repo/migrations/20190207134142_move_participant_role_to_enum.exs

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defmodule Mobilizon.Repo.Migrations.MoveParticipantRoleToEnum do
use Ecto.Migration
alias Mobilizon.Events.ParticipantRoleEnum
def up do
ParticipantRoleEnum.create_type()
alter table(:participants) do
add(:role_tmp, ParticipantRoleEnum.type(), default: "participant")
end
execute "UPDATE participants set role_tmp = 'not_approved' where role = 0"
execute "UPDATE participants set role_tmp = 'participant' where role = 1"
execute "UPDATE participants set role_tmp = 'moderator' where role = 2"
execute "UPDATE participants set role_tmp = 'administrator' where role = 3"
execute "UPDATE participants set role_tmp = 'creator' where role = 4"
alter table(:participants) do
remove(:role)
end
rename table(:participants), :role_tmp, to: :role
end
def down do
alter table(:participants) do
add(:role_tmp, :integer, default: 1)
end
execute "UPDATE participants set role_tmp = 0 where role = 'not_approved'"
execute "UPDATE participants set role_tmp = 1 where role = 'participant'"
execute "UPDATE participants set role_tmp = 2 where role = 'moderator'"
execute "UPDATE participants set role_tmp = 3 where role = 'administrator'"
execute "UPDATE participants set role_tmp = 4 where role = 'creator'"
alter table(:participants) do
remove(:role)
end
ParticipantRoleEnum.drop_type()
rename table(:participants), :role_tmp, to: :role
end
end