diff options
Diffstat (limited to 'activemodel/lib/active_model/validations/length.rb')
| -rw-r--r-- | activemodel/lib/active_model/validations/length.rb | 31 |
1 files changed, 19 insertions, 12 deletions
diff --git a/activemodel/lib/active_model/validations/length.rb b/activemodel/lib/active_model/validations/length.rb index 48d14978fa..0eba241333 100644 --- a/activemodel/lib/active_model/validations/length.rb +++ b/activemodel/lib/active_model/validations/length.rb @@ -1,3 +1,5 @@ +require "active_support/core_ext/string/encoding" + module ActiveModel # == Active Model Length Validator @@ -6,14 +8,12 @@ module ActiveModel MESSAGES = { :is => :wrong_length, :minimum => :too_short, :maximum => :too_long }.freeze CHECKS = { :is => :==, :minimum => :>=, :maximum => :<= }.freeze - DEFAULT_TOKENIZER = lambda { |value| value.split(//) } RESERVED_OPTIONS = [:minimum, :maximum, :within, :is, :tokenizer, :too_short, :too_long] def initialize(options) if range = (options.delete(:in) || options.delete(:within)) raise ArgumentError, ":in and :within must be a Range" unless range.is_a?(Range) - options[:minimum], options[:maximum] = range.begin, range.end - options[:maximum] -= 1 if range.exclude_end? + options[:minimum], options[:maximum] = range.min, range.max end super @@ -23,7 +23,7 @@ module ActiveModel keys = CHECKS.keys & options.keys if keys.empty? - raise ArgumentError, 'Range unspecified. Specify the :within, :maximum, :minimum, or :is option.' + raise ArgumentError, 'Range unspecified. Specify the :in, :within, :maximum, :minimum, or :is option.' end keys.each do |key| @@ -36,14 +36,11 @@ module ActiveModel end def validate_each(record, attribute, value) - value = (options[:tokenizer] || DEFAULT_TOKENIZER).call(value) if value.kind_of?(String) + value = tokenize(value) + value_length = value.respond_to?(:length) ? value.length : value.to_s.length CHECKS.each do |key, validity_check| next unless check_value = options[key] - - value ||= [] if key == :maximum - - value_length = value.respond_to?(:length) ? value.length : value.to_s.length next if value_length.send(validity_check, check_value) errors_options = options.except(*RESERVED_OPTIONS) @@ -55,6 +52,14 @@ module ActiveModel record.errors.add(attribute, MESSAGES[key], errors_options) end end + + private + + def tokenize(value) + if options[:tokenizer] && value.kind_of?(String) + options[:tokenizer].call(value) + end || value + end end module HelperMethods @@ -62,14 +67,14 @@ module ActiveModel # Validates that the specified attribute matches the length restrictions supplied. Only one option can be used at a time: # # class Person < ActiveRecord::Base - # validates_length_of :first_name, :maximum=>30 - # validates_length_of :last_name, :maximum=>30, :message=>"less than 30 if you don't mind" + # validates_length_of :first_name, :maximum => 30 + # validates_length_of :last_name, :maximum => 30, :message => "less than 30 if you don't mind" # validates_length_of :fax, :in => 7..32, :allow_nil => true # validates_length_of :phone, :in => 7..32, :allow_blank => true # validates_length_of :user_name, :within => 6..20, :too_long => "pick a shorter name", :too_short => "pick a longer name" # validates_length_of :zip_code, :minimum => 5, :too_short => "please enter at least 5 characters" # validates_length_of :smurf_leader, :is => 4, :message => "papa is spelled with 4 characters... don't play me." - # validates_length_of :essay, :minimum => 100, :too_short => "Your essay must be at least 100 words."), :tokenizer => lambda {|str| str.scan(/\w+/) } + # validates_length_of :essay, :minimum => 100, :too_short => "Your essay must be at least 100 words.", :tokenizer => lambda { |str| str.scan(/\w+/) } # end # # Configuration options: @@ -96,6 +101,8 @@ module ActiveModel # * <tt>:tokenizer</tt> - Specifies how to split up the attribute string. (e.g. <tt>:tokenizer => lambda {|str| str.scan(/\w+/)}</tt> to # count words as in above example.) # Defaults to <tt>lambda{ |value| value.split(//) }</tt> which counts individual characters. + # * <tt>:strict</tt> - Specifies whether validation should be strict. + # See <tt>ActiveModel::Validation#validates!</tt> for more information def validates_length_of(*attr_names) validates_with LengthValidator, _merge_attributes(attr_names) end |