debianize-mobilizon/priv/repo/migrations/20190307125009_move_user_role_to_enum.exs

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defmodule Mobilizon.Repo.Migrations.MoveUserRoleToEnum do
use Ecto.Migration
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alias Mobilizon.Users.UserRole
def up do
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UserRole.create_type()
alter table(:users) do
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add(:role_tmp, UserRole.type(), default: "user")
end
execute("UPDATE users set role_tmp = 'user' where role = 0")
execute("UPDATE users set role_tmp = 'moderator' where role = 1")
execute("UPDATE users set role_tmp = 'administrator' where role = 2")
alter table(:users) do
remove(:role)
end
rename(table(:users), :role_tmp, to: :role)
end
def down do
alter table(:users) do
add(:role_tmp, :integer, default: 0)
end
execute("UPDATE users set role_tmp = 0 where role = 'user'")
execute("UPDATE users set role_tmp = 1 where role = 'moderator'")
execute("UPDATE users set role_tmp = 2 where role = 'administrator'")
alter table(:users) do
remove(:role)
end
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UserRole.drop_type()
rename(table(:users), :role_tmp, to: :role)
end
end