63 lines
2.2 KiB
Ruby
63 lines
2.2 KiB
Ruby
require 'active_support/inflector'
|
|
|
|
module ActiveModel
|
|
|
|
class Name < String
|
|
attr_reader :singular, :plural, :element, :collection, :partial_path
|
|
alias_method :cache_key, :collection
|
|
|
|
def initialize(klass)
|
|
super(klass.name)
|
|
@klass = klass
|
|
@singular = ActiveSupport::Inflector.underscore(self).tr('/', '_').freeze
|
|
@plural = ActiveSupport::Inflector.pluralize(@singular).freeze
|
|
@element = ActiveSupport::Inflector.underscore(ActiveSupport::Inflector.demodulize(self)).freeze
|
|
@human = ActiveSupport::Inflector.humanize(@element).freeze
|
|
@collection = ActiveSupport::Inflector.tableize(self).freeze
|
|
@partial_path = "#{@collection}/#{@element}".freeze
|
|
end
|
|
|
|
# Transform the model name into a more humane format, using I18n. By default,
|
|
# it will underscore then humanize the class name (BlogPost.model_name.human #=> "Blog post").
|
|
# Specify +options+ with additional translating options.
|
|
def human(options={})
|
|
return @human unless @klass.respond_to?(:lookup_ancestors) &&
|
|
@klass.respond_to?(:i18n_scope)
|
|
|
|
defaults = @klass.lookup_ancestors.map do |klass|
|
|
klass.model_name.underscore.to_sym
|
|
end
|
|
|
|
defaults << options.delete(:default) if options[:default]
|
|
defaults << @human
|
|
|
|
options.reverse_merge! :scope => [@klass.i18n_scope, :models], :count => 1, :default => defaults
|
|
I18n.translate(defaults.shift, options)
|
|
end
|
|
end
|
|
|
|
# ActiveModel::Naming is a module that creates a +model_name+ method on your
|
|
# object.
|
|
#
|
|
# To implement, just extend ActiveModel::Naming in your object:
|
|
#
|
|
# class BookCover
|
|
# extend ActiveModel::Naming
|
|
# end
|
|
#
|
|
# BookCover.model_name #=> "BookCover"
|
|
# BookCover.model_name.human #=> "Book cover"
|
|
#
|
|
# Providing the functionality that ActiveModel::Naming provides in your object
|
|
# is required to pass the ActiveModel Lint test. So either extending the provided
|
|
# method below, or rolling your own is required..
|
|
module Naming
|
|
# Returns an ActiveModel::Name object for module. It can be
|
|
# used to retrieve all kinds of naming-related information.
|
|
def model_name
|
|
@_model_name ||= ActiveModel::Name.new(self)
|
|
end
|
|
end
|
|
|
|
end
|