discourse/app/services/reorder_flag.rb

61 lines
1.3 KiB
Ruby

# frozen_string_literal: true
VALID_DIRECTIONS = %w[up down]
class ReorderFlag
include Service::Base
contract
model :flag
policy :invalid_access
policy :invalid_move
transaction do
step :move
step :log
end
class Contract
attribute :flag_id, :integer
attribute :direction, :string
validates :flag_id, presence: true
validates :direction, inclusion: { in: VALID_DIRECTIONS }
end
private
def fetch_flag(flag_id:)
Flag.find(flag_id)
end
def invalid_access(guardian:, flag:)
guardian.can_reorder_flag?(flag)
end
def all_flags
@all_flags ||= Flag.where.not(name_key: "notify_user").order(:position)
end
def invalid_move(flag:, direction:)
return false if all_flags.first == flag && direction == "up"
return false if all_flags.last == flag && direction == "down"
true
end
def move(flag:, direction:)
old_position = flag.position
index = all_flags.index(flag)
target_flag = all_flags[direction == "up" ? index - 1 : index + 1]
flag.update!(position: target_flag.position)
target_flag.update!(position: old_position)
end
def log(guardian:, flag:, direction:)
StaffActionLogger.new(guardian.user).log_custom(
"move_flag",
{ flag: flag.name, direction: direction },
)
end
end