module Formtastic::Helpers::ErrorsHelper

Constants

INLINE_ERROR_TYPES

Public Instance Methods

semantic_errors(*args) click to toggle source

Generates an unordered list of error messages on the base object and optionally for a given set of named attribute. This is idea for rendering a block of error messages at the top of the form for hidden/special/virtual attributes (the Paperclip Rails plugin does this), or errors on the base model.

A hash can be used as the last set of arguments to pass HTML attributes to the `<ul>` wrapper.

@example A list of errors on the base model

<%= semantic_form_for ... %>
  <%= f.semantic_errors %>
  ...
<% end %>

@example A list of errors on the base and named attributes

<%= semantic_form_for ... %>
  <%= f.semantic_errors :something_special %>
  ...
<% end %>

@example A list of errors on the base model, with custom HTML attributes

<%= semantic_form_for ... %>
  <%= f.semantic_errors :class => "awesome" %>
  ...
<% end %>

@example A list of errors on the base model and named attributes, with custom HTML attributes

<%= semantic_form_for ... %>
  <%= f.semantic_errors :something_special, :something_else, :class => "awesome", :onclick => "Awesome();" %>
  ...
<% end %>
# File lib/formtastic/helpers/errors_helper.rb, line 41
def semantic_errors(*args)
  html_options = args.extract_options!
  args = args - [:base]
  full_errors = args.inject([]) do |array, method|
    attribute = localized_string(method, method.to_sym, :label) || humanized_attribute_name(method)
    errors = Array(@object.errors[method.to_sym]).to_sentence
    errors.present? ? array << [attribute, errors].join(" ") : array ||= []
  end
  full_errors << @object.errors[:base]
  full_errors.flatten!
  full_errors.compact!
  return nil if full_errors.blank?
  html_options[:class] ||= "errors"
  template.content_tag(:ul, html_options) do
    Formtastic::Util.html_safe(full_errors.map { |error| template.content_tag(:li, Formtastic::Util.html_safe(error)) }.join)
  end
end

Protected Instance Methods

error_keys(method, options) click to toggle source
# File lib/formtastic/helpers/errors_helper.rb, line 61
def error_keys(method, options)
  @methods_for_error ||= {}
  @methods_for_error[method] ||= begin
    methods_for_error = [method.to_sym]
    methods_for_error << file_metadata_suffixes.map{|suffix| "#{method}_#{suffix}".to_sym} if is_file?(method, options)
    methods_for_error << [association_primary_key_for_method(method)] if [:belongs_to, :has_many].include? association_macro_for_method(method)
    methods_for_error.flatten.compact.uniq
  end
end
has_errors?(method, options) click to toggle source
# File lib/formtastic/helpers/errors_helper.rb, line 71
def has_errors?(method, options)
  methods_for_error = error_keys(method,options)
  @object && @object.respond_to?(:errors) && methods_for_error.any?{|error| !@object.errors[error].blank?}
end
render_inline_errors?() click to toggle source
# File lib/formtastic/helpers/errors_helper.rb, line 76
def render_inline_errors?
  @object && @object.respond_to?(:errors) && Formtastic::FormBuilder::INLINE_ERROR_TYPES.include?(inline_errors)
end