diff options
Diffstat (limited to 'activemodel/lib/active_model/validations.rb')
| -rw-r--r-- | activemodel/lib/active_model/validations.rb | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/activemodel/lib/active_model/validations.rb b/activemodel/lib/active_model/validations.rb index 0e15155b85..611e9ffd55 100644 --- a/activemodel/lib/active_model/validations.rb +++ b/activemodel/lib/active_model/validations.rb @@ -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 @@ -128,6 +128,19 @@ 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) @@ -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) |