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Contents
# encoding: utf-8
module Mongoid
module Persistable
# Defines behaviour for $push and $addToSet operations.
#
# @since 4.0.0
module Pushable
extend ActiveSupport::Concern
# Add the single values to the arrays only if the value does not already
# exist in the array.
#
# @example Add the values to the sets.
# document.add_to_set(names: "James", aliases: "Bond")
#
# @param [ Hash ] adds The field/value pairs to add.
#
# @return [ true, false ] If the operation succeeded.
#
# @since 4.0.0
def add_to_set(adds)
prepare_atomic_operation do |ops|
process_atomic_operations(adds) do |field, value|
existing = send(field) || (attributes[field] ||= [])
values = [ value ].flatten(1)
values.each do |val|
existing.push(val) unless existing.include?(val)
end
ops[atomic_attribute_name(field)] = { "$each" => values }
end
{ "$addToSet" => ops }
end
end
# Push a single value or multiple values onto arrays.
#
# @example Push a single value onto arrays.
# document.push(names: "James", aliases: "007")
#
# @example Push multiple values onto arrays.
# document.push(names: [ "James", "Bond" ])
#
# @param [ Hash ] pushes The $push operations.
#
# @return [ true, false ] If the operation succeeded.
#
# @since 4.0.0
def push(pushes)
prepare_atomic_operation do |ops|
process_atomic_operations(pushes) do |field, value|
existing = send(field) || (attributes[field] ||= [])
values = [ value ].flatten(1)
values.each{ |val| existing.push(val) }
ops[atomic_attribute_name(field)] = { "$each" => values }
end
{ "$push" => ops }
end
end
end
end
end
Version data entries
14 entries across 14 versions & 5 rubygems