diff options
Diffstat (limited to 'activemodel/lib/active_model/validations.rb')
| -rw-r--r-- | activemodel/lib/active_model/validations.rb | 33 |
1 files changed, 26 insertions, 7 deletions
diff --git a/activemodel/lib/active_model/validations.rb b/activemodel/lib/active_model/validations.rb index 8ed392abca..611e9ffd55 100644 --- a/activemodel/lib/active_model/validations.rb +++ b/activemodel/lib/active_model/validations.rb @@ -1,5 +1,4 @@ require 'active_support/core_ext/array/extract_options' -require 'active_support/core_ext/array/wrap' require 'active_support/core_ext/class/attribute' require 'active_support/core_ext/hash/keys' require 'active_support/core_ext/hash/except' @@ -34,7 +33,7 @@ module ActiveModel # person.first_name = 'zoolander' # person.valid? # => false # person.invalid? # => true - # person.errors # => #<OrderedHash {:first_name=>["starts with z."]}> + # person.errors # => #<Hash {:first_name=>["starts with z."]}> # # Note that <tt>ActiveModel::Validations</tt> automatically adds an +errors+ method # to your instances initialized with a new <tt>ActiveModel::Errors</tt> object, so @@ -42,9 +41,9 @@ module ActiveModel # module Validations extend ActiveSupport::Concern - include ActiveSupport::Callbacks included do + extend ActiveModel::Callbacks extend ActiveModel::Translation extend HelperMethods @@ -53,7 +52,8 @@ module ActiveModel attr_accessor :validation_context define_callbacks :validate, :scope => :name - class_attribute :_validators + extend ActiveModel::Configuration + config_attribute :_validators self._validators = Hash.new { |h,k| h[k] = [] } end @@ -65,7 +65,7 @@ module ActiveModel # # attr_accessor :first_name, :last_name # - # validates_each :first_name, :last_name do |record, attr, value| + # validates_each :first_name, :last_name, :allow_blank => true do |record, attr, value| # record.errors.add attr, 'starts with z.' if value.to_s[0] == ?z # end # end @@ -128,11 +128,24 @@ module ActiveModel # end # end # + # Options: + # * <tt>:on</tt> - Specifies the context where this validation is active + # (e.g. <tt>:on => :create</tt> or <tt>:on => :custom_validation_context</tt>) + # * <tt>:allow_nil</tt> - Skip validation if attribute is +nil+. + # * <tt>:allow_blank</tt> - Skip validation if attribute is blank. + # * <tt>:if</tt> - Specifies a method, proc or string to call to determine + # if the validation should occur (e.g. <tt>:if => :allow_validation</tt>, + # or <tt>:if => Proc.new { |user| user.signup_step > 2 }</tt>). The method, + # proc or string should return or evaluate to a true or false value. + # * <tt>:unless</tt> - Specifies a method, proc or string to call to determine if the validation should + # not occur (e.g. <tt>:unless => :skip_validation</tt>, or + # <tt>:unless => Proc.new { |user| user.signup_step <= 2 }</tt>). The + # method, proc or string should return or evaluate to a true or false value. def validate(*args, &block) options = args.extract_options! if options.key?(:on) options = options.dup - options[:if] = Array.wrap(options[:if]) + options[:if] = Array(options[:if]) options[:if].unshift("validation_context == :#{options[:on]}") end args << options @@ -145,7 +158,7 @@ module ActiveModel _validators.values.flatten.uniq end - # List all validators that being used to validate a specific attribute. + # List all validators that are being used to validate a specific attribute. def validators_on(*attributes) attributes.map do |attribute| _validators[attribute.to_sym] @@ -165,6 +178,12 @@ module ActiveModel end end + # Clean the +Errors+ object if instance is duped + def initialize_dup(other) # :nodoc: + @errors = nil + super + end + # Returns the +Errors+ object that holds all information about attribute error messages. def errors @errors ||= Errors.new(self) |