Validates whether or not an association is valid or not. Will correctly handle has one and has many associations.
@example
class Person include Mongoid::Document embeds_one :name embeds_many :addresses validates_associated :name, :addresses end
@param [ Array ] *args The arguments to pass to the validator.
# File lib/mongoid/validations/macros.rb, line 20 def validates_associated(*args) validates_with(AssociatedValidator, _merge_attributes(args)) end
Validates the format of a field.
@example
class Person include Mongoid::Document field :title validates_format_of :title, with: /^[a-z0-9 \-_]*$/ end
@param [ Array ] args The names of the fields to validate.
@since 2.4.0
# File lib/mongoid/validations/macros.rb, line 54 def validates_format_of(*args) validates_with(Mongoid::Validations::FormatValidator, _merge_attributes(args)) end
Validates the length of a field.
@example
class Person include Mongoid::Document field :title validates_length_of :title, minimum: 100 end
@param [ Array ] args The names of the fields to validate.
@since 2.4.0
# File lib/mongoid/validations/macros.rb, line 71 def validates_length_of(*args) validates_with(Mongoid::Validations::LengthValidator, _merge_attributes(args)) end
Validates whether or not a field is present - meaning nil or empty.
@example
class Person include Mongoid::Document field :title validates_presence_of :title end
@param [ Array ] args The names of the fields to validate.
@since 2.4.0
# File lib/mongoid/validations/macros.rb, line 88 def validates_presence_of(*args) validates_with(PresenceValidator, _merge_attributes(args)) end
Validates whether or not a field is unique against the documents in the database.
@example
class Person include Mongoid::Document field :title validates_uniqueness_of :title end
@param [ Array ] *args The arguments to pass to the validator.
# File lib/mongoid/validations/macros.rb, line 37 def validates_uniqueness_of(*args) validates_with(UniquenessValidator, _merge_attributes(args)) end