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Contents
# encoding: utf-8
module Mongoid
module Persistence
module Atomic
# This class provides the ability to perform an explicit $addToSet
# modification on a specific field.
class AddToSet
include Operation
# Sends the atomic $addToSet operation to the database.
#
# @example Persist the new values.
# addToSet.persist
#
# @return [ Object ] The new array value.
#
# @since 2.0.0
def persist
prepare do
document[field] = [] unless document[field]
values = document.send(field)
Array.wrap(value).each do |val|
values.push(val) unless values.include?(val)
end
execute("$addToSet")
values
end
end
# Get the atomic operation to perform.
#
# @example Get the operation.
# add_to_set.operation("$addToSet")
#
# @param [ String ] modifier The modifier to use.
#
# @return [ Hash ] The atomic operation for the field and addition.
#
# @since 2.0.0
def operation(modifier)
{ modifier => { path => value.is_a?(Array) ? { "$each" => value } : value}}
end
end
end
end
end
Version data entries
32 entries across 32 versions & 2 rubygems