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169 lines
No EOL
6.2 KiB
Ruby
169 lines
No EOL
6.2 KiB
Ruby
module ActiveModel
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class Errors < Hash
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include DeprecatedErrorMethods
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class << self
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def default_error_messages
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message = "Errors.default_error_messages has been deprecated. Please use I18n.translate('activerecord.errors.messages')."
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ActiveSupport::Deprecation.warn(message)
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I18n.translate 'activerecord.errors.messages'
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end
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end
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def initialize(base)
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@base = base
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super()
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end
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alias_method :get, :[]
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alias_method :set, :[]=
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def [](attribute)
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if errors = get(attribute.to_sym)
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errors
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else
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set(attribute.to_sym, [])
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end
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end
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def []=(attribute, error)
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self[attribute.to_sym] << error
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end
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def each
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each_key do |attribute|
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self[attribute].each { |error| yield attribute, error }
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end
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end
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def size
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values.flatten.size
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end
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def to_a
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full_messages
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end
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def count
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to_a.size
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end
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def to_xml(options={})
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options[:root] ||= "errors"
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options[:indent] ||= 2
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options[:builder] ||= Builder::XmlMarkup.new(:indent => options[:indent])
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options[:builder].instruct! unless options.delete(:skip_instruct)
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options[:builder].errors do |e|
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to_a.each { |error| e.error(error) }
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end
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end
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# Adds an error message (+messsage+) to the +attribute+, which will be returned on a call to <tt>on(attribute)</tt>
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# for the same attribute and ensure that this error object returns false when asked if <tt>empty?</tt>. More than one
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# error can be added to the same +attribute+ in which case an array will be returned on a call to <tt>on(attribute)</tt>.
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# If no +messsage+ is supplied, :invalid is assumed.
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# If +message+ is a Symbol, it will be translated, using the appropriate scope (see translate_error).
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def add(attribute, message = nil, options = {})
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message ||= :invalid
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message = generate_message(attribute, message, options) if message.is_a?(Symbol)
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self[attribute] << message
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end
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# Will add an error message to each of the attributes in +attributes+ that is empty.
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def add_on_empty(attributes, custom_message = nil)
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[attributes].flatten.each do |attribute|
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value = @base.respond_to?(attribute.to_s) ? @base.send(attribute.to_s) : @base[attribute.to_s]
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is_empty = value.respond_to?(:empty?) ? value.empty? : false
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add(attribute, :empty, :default => custom_message) unless !value.nil? && !is_empty
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end
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end
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# Will add an error message to each of the attributes in +attributes+ that is blank (using Object#blank?).
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def add_on_blank(attributes, custom_message = nil)
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[attributes].flatten.each do |attribute|
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value = @base.respond_to?(attribute.to_sym) ? @base.send(attribute.to_sym) : @base[attribute.to_sym]
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add(attribute, :blank, :default => custom_message) if value.blank?
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end
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end
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# Returns all the full error messages in an array.
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#
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# class Company < ActiveRecord::Base
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# validates_presence_of :name, :address, :email
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# validates_length_of :name, :in => 5..30
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# end
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#
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# company = Company.create(:address => '123 First St.')
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# company.errors.full_messages # =>
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# ["Name is too short (minimum is 5 characters)", "Name can't be blank", "Address can't be blank"]
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def full_messages(options = {})
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full_messages = []
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each do |attribute, messages|
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next if messages.empty?
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if attribute == :base
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messages.each {|m| full_messages << m }
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else
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if @base.class.respond_to?(:human_attribute_name)
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attr_name = @base.class.human_attribute_name(attribute.to_s)
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else
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attr_name = attribute.to_s.humanize
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end
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prefix = attr_name + I18n.t('activerecord.errors.format.separator', :default => ' ')
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messages.each do |m|
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full_messages << "#{prefix}#{m}"
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end
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end
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end
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full_messages
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end
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# Translates an error message in it's default scope (<tt>activerecord.errrors.messages</tt>).
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# Error messages are first looked up in <tt>models.MODEL.attributes.ATTRIBUTE.MESSAGE</tt>, if it's not there,
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# it's looked up in <tt>models.MODEL.MESSAGE</tt> and if that is not there it returns the translation of the
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# default message (e.g. <tt>activerecord.errors.messages.MESSAGE</tt>). The translated model name,
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# translated attribute name and the value are available for interpolation.
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#
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# When using inheritence in your models, it will check all the inherited models too, but only if the model itself
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# hasn't been found. Say you have <tt>class Admin < User; end</tt> and you wanted the translation for the <tt>:blank</tt>
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# error +message+ for the <tt>title</tt> +attribute+, it looks for these translations:
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#
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# <ol>
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# <li><tt>activerecord.errors.models.admin.attributes.title.blank</tt></li>
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# <li><tt>activerecord.errors.models.admin.blank</tt></li>
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# <li><tt>activerecord.errors.models.user.attributes.title.blank</tt></li>
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# <li><tt>activerecord.errors.models.user.blank</tt></li>
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# <li><tt>activerecord.errors.messages.blank</tt></li>
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# <li>any default you provided through the +options+ hash (in the activerecord.errors scope)</li>
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# </ol>
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def generate_message(attribute, message = :invalid, options = {})
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message, options[:default] = options[:default], message if options[:default].is_a?(Symbol)
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defaults = @base.class.self_and_descendants_from_active_record.map do |klass|
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[ :"models.#{klass.name.underscore}.attributes.#{attribute}.#{message}",
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:"models.#{klass.name.underscore}.#{message}" ]
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end
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defaults << options.delete(:default)
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defaults = defaults.compact.flatten << :"messages.#{message}"
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key = defaults.shift
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value = @base.respond_to?(attribute) ? @base.send(attribute) : nil
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options = { :default => defaults,
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:model => @base.class.human_name,
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:attribute => @base.class.human_attribute_name(attribute.to_s),
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:value => value,
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:scope => [:activerecord, :errors]
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}.merge(options)
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I18n.translate(key, options)
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end
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end
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end |