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How to use full_messages method of ClassMethods Package

Best Active_mocker_ruby code snippet using ClassMethods.full_messages

resource.rb

Source:resource.rb

...233    # Wraps an error message into a full_message format.234    #235    # The default full_message format for any locale is <tt>"{{attribute}} {{message}}"</tt>.236    # One can specify locale specific default full_message format by storing it as a237    # translation for the key <tt>:"activerecord.errors.full_messages.format"</tt>.238    #239    # Additionally one can specify a validation specific error message format by240    # storing a translation for <tt>:"activerecord.errors.full_messages.[message_key]"</tt>.241    # E.g. the full_message format for any validation that uses :blank as a message242    # key (such as validates_presence_of) can be stored to <tt>:"activerecord.errors.full_messages.blank".</tt>243    #244    # Because the message key used by a validation can be overwritten on the245    # <tt>validates_*</tt> class macro level one can customize the full_message format for246    # any particular validation:247    #248    #   # app/models/article.rb249    #   class Article < ActiveRecord::Base250    #     validates_presence_of :title, :message => :"title.blank"251    #   end252    #253    #   # config/locales/en.yml254    #   en:255    #     activerecord:256    #       errors:257    #         full_messages:258    #           title:259    #             blank: This title is screwed!260    def generate_full_message(message, options = {})261      options.reverse_merge! :message => self.message,262                             :model => @base.class.human_name,263                             :attribute => @base.class.human_attribute_name(attribute.to_s),264                             :value => value265      key = :"full_messages.#{@message}"266      defaults = [:'full_messages.format', '{{attribute}} {{message}}']267      I18n.t(key, options.merge(:default => defaults, :scope => [:activerecord, :errors]))268    end269end270# Active Record validation is reported to and from this object, which is used by Base#save to271# determine whether the object is in a valid state to be saved. See usage example in Validations.272class Errors273  include Enumerable274  class << self275    def default_error_messages276      ActiveSupport::Deprecation.warn("ActiveRecord::Errors.default_error_messages has been deprecated. Please use I18n.translate('activerecord.errors.messages').")277      I18n.translate 'activerecord.errors.messages'278    end279  end280  def initialize(base) # :nodoc:281    @base, @errors = base, {}282  end283  # Adds an error to the base object instead of any particular attribute. This is used284  # to report errors that don't tie to any specific attribute, but rather to the object285  # as a whole. These error messages don't get prepended with any field name when iterating286  # with +each_full+, so they should be complete sentences.287  def add_to_base(msg)288    add(:base, msg)289  end290  # Adds an error message (+messsage+) to the +attribute+, which will be returned on a call to <tt>on(attribute)</tt>291  # for the same attribute and ensure that this error object returns false when asked if <tt>empty?</tt>. More than one292  # error can be added to the same +attribute+ in which case an array will be returned on a call to <tt>on(attribute)</tt>.293  # If no +messsage+ is supplied, :invalid is assumed.294  # If +message+ is a Symbol, it will be translated, using the appropriate scope (see translate_error).295  # def add(attribute, message = nil, options = {})296  #   message ||= :invalid297  #   message = generate_message(attribute, message, options)) if message.is_a?(Symbol)298  #   @errors[attribute.to_s] ||= []299  #   @errors[attribute.to_s] << message300  # end301  def add(error_or_attr, message = nil, options = {})302    error, attribute = error_or_attr.is_a?(Error) ? [error_or_attr, error_or_attr.attribute] : [nil, error_or_attr]303    options[:message] = options.delete(:default) if options.has_key?(:default)304    @errors[attribute.to_s] ||= []305    @errors[attribute.to_s] << (error || Error.new(@base, attribute, message, options))306  end307  # Will add an error message to each of the attributes in +attributes+ that is empty.308  def add_on_empty(attributes, custom_message = nil)309    for attr in [attributes].flatten310      value = @base.respond_to?(attr.to_s) ? @base.send(attr.to_s) : @base[attr.to_s]311      is_empty = value.respond_to?(:empty?) ? value.empty? : false312      add(attr, :empty, :default => custom_message) unless !value.nil? && !is_empty313    end314  end315  # Will add an error message to each of the attributes in +attributes+ that is blank (using Object#blank?).316  def add_on_blank(attributes, custom_message = nil)317    for attr in [attributes].flatten318      value = @base.respond_to?(attr.to_s) ? @base.send(attr.to_s) : @base[attr.to_s]319      add(attr, :blank, :default => custom_message) if value.blank?320    end321  end322  # Returns true if the specified +attribute+ has errors associated with it.323  #324  #   class Company < ActiveRecord::Base325  #     validates_presence_of :name, :address, :email326  #     validates_length_of :name, :in => 5..30327  #   end328  #329  #   company = Company.create(:address => '123 First St.')330  #   company.errors.invalid?(:name)      # => true331  #   company.errors.invalid?(:address)   # => false332  def invalid?(attribute)333    !@errors[attribute.to_s].nil?334  end335  # Returns +nil+, if no errors are associated with the specified +attribute+.336  # Returns the error message, if one error is associated with the specified +attribute+.337  # Returns an array of error messages, if more than one error is associated with the specified +attribute+.338  #339  #   class Company < ActiveRecord::Base340  #     validates_presence_of :name, :address, :email341  #     validates_length_of :name, :in => 5..30342  #   end343  #344  #   company = Company.create(:address => '123 First St.')345  #   company.errors.on(:name)      # => ["is too short (minimum is 5 characters)", "can't be blank"]346  #   company.errors.on(:email)     # => "can't be blank"347  #   company.errors.on(:address)   # => nil348  def on(attribute)349    attribute = attribute.to_s350    return nil unless @errors.has_key?(attribute)351    errors = @errors[attribute].map(&:to_s)352    errors.size == 1 ? errors.first : errors353  end354  alias :[] :on355  # Returns errors assigned to the base object through +add_to_base+ according to the normal rules of <tt>on(attribute)</tt>.356  def on_base357    on(:base)358  end359  # Yields each attribute and associated message per error added.360  #361  #   class Company < ActiveRecord::Base362  #     validates_presence_of :name, :address, :email363  #     validates_length_of :name, :in => 5..30364  #   end365  #366  #   company = Company.create(:address => '123 First St.')367  #   company.errors.each{|attr,msg| puts "#{attr} - #{msg}" }368  #   # => name - is too short (minimum is 5 characters)369  #   #    name - can't be blank370  #   #    address - can't be blank371  def each372    @errors.each_key { |attr| @errors[attr].each { |error| yield attr, error.message } }373  end374  def each_error375    @errors.each_key { |attr| @errors[attr].each { |error| yield attr, error } }376  end377  # Yields each full error message added. So <tt>Person.errors.add("first_name", "can't be empty")</tt> will be returned378  # through iteration as "First name can't be empty".379  #380  #   class Company < ActiveRecord::Base381  #     validates_presence_of :name, :address, :email382  #     validates_length_of :name, :in => 5..30383  #   end384  #385  #   company = Company.create(:address => '123 First St.')386  #   company.errors.each_full{|msg| puts msg }387  #   # => Name is too short (minimum is 5 characters)388  #   #    Name can't be blank389  #   #    Address can't be blank390  def each_full391    full_messages.each { |msg| yield msg }392  end393  # Returns all the full error messages in an array.394  #395  #   class Company < ActiveRecord::Base396  #     validates_presence_of :name, :address, :email397  #     validates_length_of :name, :in => 5..30398  #   end399  #400  #   company = Company.create(:address => '123 First St.')401  #   company.errors.full_messages # =>402  #     ["Name is too short (minimum is 5 characters)", "Name can't be blank", "Address can't be blank"]403  def full_messages(options = {})404    @errors.values.inject([]) do |full_messages, errors|405      full_messages + errors.map { |error| error.full_message }406    end407  end408  # Returns true if no errors have been added.409  def empty?410    @errors.empty?411  end412  # Removes all errors that have been added.413  def clear414    @errors = {}415  end416  # Returns the total number of errors added. Two errors added to the same attribute will be counted as such.417  def size418    @errors.values.inject(0) { |error_count, attribute| error_count + attribute.size }419  end420  alias_method :count, :size421  alias_method :length, :size422  # Returns an XML representation of this error object.423  #424  #   class Company < ActiveRecord::Base425  #     validates_presence_of :name, :address, :email426  #     validates_length_of :name, :in => 5..30427  #   end428  #429  #   company = Company.create(:address => '123 First St.')430  #   company.errors.to_xml431  #   # =>  <?xml version="1.0" encoding="UTF-8"?>432  #   #     <errors>433  #   #       <error>Name is too short (minimum is 5 characters)</error>434  #   #       <error>Name can't be blank</error>435  #   #       <error>Address can't be blank</error>436  #   #     </errors>437  def to_xml(options={})438    options[:root] ||= "errors"439    options[:indent] ||= 2440    options[:builder] ||= Builder::XmlMarkup.new(:indent => options[:indent])441    options[:builder].instruct! unless options.delete(:skip_instruct)442    options[:builder].errors do |e|443      full_messages.each { |msg| e.error(msg) }444    end445  end446  def generate_message(attribute, message = :invalid, options = {})447    ActiveSupport::Deprecation.warn("ActiveRecord::Errors#generate_message has been deprecated. Please use ActiveRecord::Error#generate_message.")448    Error.new(@base, attribute, message, options).to_s449  end450end...

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