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Contents
# encoding: utf-8
module Mongoid
module Persistable
# Defines behaviour for $pull and $pullAll operations.
#
# @since 4.0.0
module Pullable
extend ActiveSupport::Concern
# Pull single values from the provided arrays.
#
# @example Pull a value from the array.
# document.pull(names: "Jeff", levels: 5)
#
# @note If duplicate values are found they will all be pulled.
#
# @param [ Hash ] pulls The field/value pull pairs.
#
# @return [ Document ] The document.
#
# @since 4.0.0
def pull(pulls)
prepare_atomic_operation do |ops|
process_atomic_operations(pulls) do |field, value|
(send(field) || []).delete(value)
ops[atomic_attribute_name(field)] = value
end
{ "$pull" => ops }
end
end
# Pull multiple values from the provided array fields.
#
# @example Pull values from the arrays.
# document.pull_all(names: [ "Jeff", "Bob" ], levels: [ 5, 6 ])
#
# @param [ Hash ] pulls The pull all operations.
#
# @return [ Document ] The document.
#
# @since 4.0.0
def pull_all(pulls)
prepare_atomic_operation do |ops|
process_atomic_operations(pulls) do |field, value|
existing = send(field) || []
value.each{ |val| existing.delete(val) }
ops[atomic_attribute_name(field)] = value
end
{ "$pullAll" => ops }
end
end
end
end
end
Version data entries
59 entries across 55 versions & 3 rubygems