Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with
or
.
Download ZIP
Fetching contributors…

Cannot retrieve contributors at this time

111 lines (95 sloc) 3.94 kB
module Formtastic
# Implementation for looking up localized values within Formtastic using I18n, if no
# explicit value (like the `:label` option) is set and I18n-lookups are enabled in the
# configuration.
#
# You can subclass this to implement your own Localizer, and configure Formtastic to use this
# localizer with:
#
# Formtastic::FormBuilder.i18n_localizer
#
# Enabled/disable i18n lookups completely with:
#
# Formtastic::FormBuilder.i18n_lookups_by_default = true/false
#
# Lookup priority:
#
# 'formtastic.%{type}.%{model}.%{action}.%{attribute}'
# 'formtastic.%{type}.%{model}.%{attribute}'
# 'formtastic.%{type}.%{attribute}'
#
# Example:
#
# 'formtastic.labels.post.edit.title'
# 'formtastic.labels.post.title'
# 'formtastic.labels.title'
class Localizer
attr_accessor :builder
def initialize(current_builder)
self.builder = current_builder
end
def localize(key, value, type, options = {}) #:nodoc:
key = value if value.is_a?(::Symbol)
if value.is_a?(::String)
escape_html_entities(value)
else
use_i18n = value.nil? ? i18n_lookups_by_default : (value != false)
if use_i18n
model_name, nested_model_name = normalize_model_name(builder.model_name.underscore)
action_name = builder.template.params[:action].to_s rescue ''
attribute_name = key.to_s
defaults = Formtastic::I18n::SCOPES.reject do |i18n_scope|
nested_model_name.nil? && i18n_scope.match(/nested_model/)
end.collect do |i18n_scope|
i18n_path = i18n_scope.dup
i18n_path.gsub!('%{action}', action_name)
i18n_path.gsub!('%{model}', model_name)
i18n_path.gsub!('%{nested_model}', nested_model_name) unless nested_model_name.nil?
i18n_path.gsub!('%{attribute}', attribute_name)
i18n_path.gsub!('..', '.')
i18n_path.to_sym
end
defaults << ''
defaults.uniq!
default_key = defaults.shift
i18n_value = Formtastic::I18n.t(default_key,
options.merge(:default => defaults, :scope => type.to_s.pluralize.to_sym))
i18n_value = i18n_value.is_a?(::String) ? i18n_value : nil
if i18n_value.blank? && type == :label
# This is effectively what Rails label helper does for i18n lookup
options[:scope] = [:helpers, type]
options[:default] = defaults
i18n_value = ::I18n.t(default_key, options)
end
(i18n_value.is_a?(::String) && i18n_value.present?) ? escape_html_entities(i18n_value) : nil
end
end
end
protected
def normalize_model_name(name)
if !name =~ /\[/ && builder.respond_to?(:parent_builder) && builder.parent_builder.object_name
# Rails 3.1 nested builder case
[builder.parent_builder.object_name.to_s, name]
elsif name =~ /(.+)\[(.+)\]/
# Rails 3 (and 3.1?) nested builder case with :post rather than @post
[$1, $2]
elsif builder.respond_to?(:options) && builder.options.key?(:parent_builder)
# Rails 3.0 nested builder work-around case, where :parent_builder is provided by f.semantic_form_for
[builder.options[:parent_builder].object_name.to_s, name]
else
# Non-nested case
[name]
end
end
def escape_html_entities(string) #:nodoc:
if (builder.escape_html_entities_in_hints_and_labels) ||
(self.respond_to?(:escape_html_entities_in_hints_and_labels) && escape_html_entities_in_hints_and_labels)
string = builder.template.escape_once(string) unless string.respond_to?(:html_safe?) && string.html_safe? == true # Accept html_safe flag as indicator to skip escaping
end
string
end
def i18n_lookups_by_default
builder.i18n_lookups_by_default
end
end
end
Jump to Line
Something went wrong with that request. Please try again.