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# encoding: utf-8
require "mongoid/validatable/macros"
require "mongoid/validatable/localizable"
require "mongoid/validatable/associated"
require "mongoid/validatable/format"
require "mongoid/validatable/length"
require "mongoid/validatable/queryable"
require "mongoid/validatable/presence"
require "mongoid/validatable/uniqueness"
module Mongoid
# This module provides additional validations that ActiveModel does not
# provide: validates_associated and validates_uniqueness_of.
module Validatable
extend ActiveSupport::Concern
included do
extend Macros
include Macros
end
# Begin the associated validation.
#
# @example Begin validation.
# document.begin_validate
#
# @since 2.1.9
def begin_validate
Threaded.begin_validate(self)
end
# Exit the associated validation.
#
# @example Exit validation.
# document.exit_validate
#
# @since 2.1.9
def exit_validate
Threaded.exit_validate(self)
end
# Given the provided options, are we performing validations?
#
# @example Are we performing validations?
# document.performing_validations?(validate: true)
#
# @param [ Hash ] options The options to check.
#
# @return [ true, false ] If we are validating.
#
# @since 4.0.0
def performing_validations?(options = {})
options[:validate].nil? ? true : options[:validate]
end
# Overrides the default ActiveModel behaviour since we need to handle
# validations of relations slightly different than just calling the
# getter.
#
# @example Read the value.
# person.read_attribute_for_validation(:addresses)
#
# @param [ Symbol ] attr The name of the field or relation.
#
# @return [ Object ] The value of the field or the relation.
#
# @since 2.0.0.rc.1
def read_attribute_for_validation(attr)
attribute = database_field_name(attr)
if relations.key?(attribute)
begin_validate
relation = without_autobuild { send(attr) }
exit_validate
relation.do_or_do_not(:in_memory) || relation
elsif fields[attribute].try(:localized?)
attributes[attribute]
else
send(attr)
end
end
# Determine if the document is valid.
#
# @example Is the document valid?
# person.valid?
#
# @example Is the document valid in a context?
# person.valid?(:create)
#
# @param [ Symbol ] context The optional validation context.
#
# @return [ true, false ] True if valid, false if not.
#
# @since 2.0.0.rc.6
def valid?(context = nil)
super context ? context : (new_record? ? :create : :update)
end
# Used to prevent infinite loops in associated validations.
#
# @example Is the document validated?
# document.validated?
#
# @return [ true, false ] Has the document already been validated?
#
# @since 2.0.0.rc.2
def validated?
Threaded.validated?(self)
end
# Are we currently performing a validation that has a query?
#
# @example Are we validating with a query?
# document.validating_with_query?
#
# @return [ true, false ] If we are validating with a query.
#
# @since 3.0.2
def validating_with_query?
self.class.validating_with_query?
end
module ClassMethods
# Adds an associated validator for the relation if the validate option
# was not provided or set to true.
#
# @example Set up validation.
# Person.validates_relation(metadata)
#
# @param [ Metadata ] metadata The relation metadata.
#
# @since 2.0.0.rc.1
def validates_relation(metadata)
if metadata.validate?
validates_associated(metadata.name)
end
end
# Add validation with the supplied validators forthe provided fields
# with options.
#
# @example Validate with a specific validator.
# validates_with MyValidator, on: :create
#
# @param [ Class<Array>, Hash ] *args The validator classes and options.
#
# @note See ActiveModel::Validations::With for full options. This is
# overridden to add autosave functionality when presence validation is
# added.
#
# @since 3.0.0
def validates_with(*args, &block)
if args.first == PresenceValidator
args.last[:attributes].each do |name|
metadata = relations[name.to_s]
if metadata && metadata[:autosave] != false
autosave(metadata.merge!(autosave: true))
end
end
end
super
end
# Are we currently performing a validation that has a query?
#
# @example Are we validating with a query?
# Model.validating_with_query?
#
# @return [ true, false ] If we are validating with a query.
#
# @since 3.0.2
def validating_with_query?
Threaded.executing?("#{name}-validate-with-query")
end
end
end
end