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# frozen_string_literal: true
# encoding: utf-8
module Mongoid
module Persistable
# Defines behavior for $rename operations.
#
# @since 4.0.0
module Renamable
extend ActiveSupport::Concern
# Rename fields from one value to another via $rename.
#
# @example Rename the fields.
# document.rename(title: "salutation", name: "nombre")
#
# @note This does not work for fields in embeds many associations.
#
# @param [ Hash ] renames The rename pairs of old name/new name.
#
# @return [ Document ] The document.
#
# @since 4.0.0
def rename(renames)
prepare_atomic_operation do |ops|
process_atomic_operations(renames) do |old_field, new_field|
new_name = new_field.to_s
if executing_atomically?
process_attribute new_name, attributes[old_field]
process_attribute old_field, nil
else
attributes[new_name] = attributes.delete(old_field)
end
ops[atomic_attribute_name(old_field)] = atomic_attribute_name(new_name)
end
{ "$rename" => ops }
end
end
end
end
end
Version data entries
27 entries across 27 versions & 2 rubygems