foodsoft/app/models/concerns/mark_as_deleted_with_name.rb
2021-03-02 09:12:19 +01:00

25 lines
789 B
Ruby

module MarkAsDeletedWithName
extend ActiveSupport::Concern
def mark_as_deleted
# get maximum length of name
max_length = 100000
if lenval = self.class.validators_on(:name).detect { |v| v.is_a?(ActiveModel::Validations::LengthValidator) }
max_length = lenval.options[:maximum]
end
# find unique deleted name
# (would have been nice to use retry, but there is no general duplicate-entry exception)
n = ''
begin
append = " \u2020" + n
deleted_name = name.truncate(max_length - append.length, omission: '') + append
if n.blank?
n = 'A'
else
n.succ!
end
end while self.class.where(name: deleted_name).exists?
# mark as deleted
update_columns deleted_at: Time.now, name: deleted_name
end
end