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Contents
# encoding: utf-8
module Mongoid
module Contextual
class FindAndModify
include Command
# @attribute [r] criteria The criteria for the context.
# @attribute [r] options The command options.
# @attribute [r] update The updates.
# @attribute [r] query The Moped query.
attr_reader :criteria, :options, :update, :query
# Initialize the find and modify command, used for MongoDB's
# $findAndModify.
#
# @example Initialize the command.
# FindAndModify.new(criteria, { "$set" => { likes: 1 }})
#
# @param [ Criteria ] criteria The criteria.
# @param [ Hash ] update The updates.
# @param [ Hash ] options The command options.
#
# @option options [ true, false ] :new Return the updated document.
# @option options [ true, false ] :remove Delete the first document.
# @option options [ true, false ] :upsert Create the document if it doesn't exist.
#
# @since 3.0.0
def initialize(collection, criteria, update, options = {})
@collection, @criteria, @options, @update =
collection, criteria, options, update.mongoize
@query = collection.find(criteria.selector)
apply_criteria_options
end
# Get the result of the $findAndModify.
#
# @example Get the result.
# find_and_modify.result
#
# @return [ Hash ] The result of the command.
#
# @since 3.0.0
def result
query.modify(update, options)
end
private
# Apply criteria specific options - query, sort, fields.
#
# @api private
#
# @example Apply the criteria options
# find_and_modify.apply_criteria_options
#
# @return [ nil ] Nothing.
#
# @since 3.0.0
def apply_criteria_options
if spec = criteria.options[:sort]
query.sort(spec)
end
if spec = criteria.options[:fields]
query.select(spec)
end
end
end
end
end
Version data entries
22 entries across 22 versions & 5 rubygems