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Contents
# Ohm error helpers.
#
# == Usage
#
# # Only for those who use Ohm and HAML
# require 'ohm'
# require 'haml'
#
# require 'sinatra/support/ohmerrorhelpers'
#
# class Main < Sinatra::Base
# helpers Sinatra::OhmErrorHelpers
# end
#
# == Common usage
#
# - errors_on @user do |e|
# - e.on [:email, :not_present], "We need your email address."
# - e.on [:password, :not_present], "You must specify a password."
#
# # produces the following:
# # <div class="errors">
# # <ul>
# # <li>We need your email address</li>
# # <li>You must specify a password.</li>
# # </ul>
# # </div>
#
module Sinatra::OhmErrorHelpers
# Presents errors on your form. Takes the explicit approach and assumes
# that for every form you have, the copy for the errors are important,
# instead of producing canned responses.
#
# @param [#errors] object An object responding to #errors. This validation
# also checks for the presence of a #full_messages method
# in the errors object for compatibility with
# ActiveRecord style objects.
# @param [Hash] options a hash of HTML attributes to place on the
# containing div.
# @option options [#to_s] :class (defaults to errors) The css class to put
# in the div.
#
# @yield [Sinatra::Support::HamlErrorPresenter] an object responding to #on.
#
def errors_on(object, options = { :class => 'errors' }, &block)
return if object.errors.empty?
lines = if object.errors.respond_to?(:full_messages)
object.errors.full_messages
else
HamlErrorPresenter.new(object.errors).present(self, &block)
end
haml_tag(:div, options) do
haml_tag(:ul) do
lines.each do |error|
haml_tag(:li, error)
end
end
end
end
end
Version data entries
57 entries across 57 versions & 2 rubygems