undefined method `encoding_aware?' - ruby

Question

How do I resolve this issue in rails 4. I upgraded my project from rails 3 to rails 4.
My server console is throwing me below error message. Could not figure out.
undefined method `encoding_aware?' for #<String:0x000000053e6ca0>
Code :
module ActionView
class Template
module Handlers
class ERB
def call(template)
if template.source.encoding_aware? # here is the error
Error Log:
NoMethodError - undefined method `encoding_aware?' for #<String:0x00000004b05348>:
config/initializers/10-patches.rb:63:in `call'
actionview (4.2.0) lib/action_view/template.rb:270:in `compile'
actionview (4.2.0) lib/action_view/template.rb:245:in `block (2 levels) in compile!'
activesupport (4.2.0) lib/active_support/notifications.rb:166:in `instrument'
actionview (4.2.0) lib/action_view/template.rb:333:in `instrument'
actionview (4.2.0) lib/action_view/template.rb:244:in `block in compile!'
<internal:prelude>:10:in `synchronize'
actionview (4.2.0) lib/action_view/template.rb:232:in `compile!'
actionview (4.2.0) lib/action_view/template.rb:144:in `block in render'
activesupport (4.2.0) lib/active_support/notifications.rb:164:in `block in instrument'
activesupport (4.2.0) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
activesupport (4.2.0) lib/active_support/notifications.rb:164:in `instrument'
actionview (4.2.0) lib/action_view/template.rb:333:in `instrument'
actionview (4.2.0) lib/action_view/template.rb:143:in `render'
rack-mini-profiler (0.9.1) lib/mini_profiler/profiling_methods.rb:108:in `block in profile_method'
actionview (4.2.0) lib/action_view/renderer/template_renderer.rb:54:in `block (2 levels) in render_template'
actionview (4.2.0) lib/action_view/renderer/abstract_renderer.rb:39:in `block in instrument'
activesupport (4.2.0) lib/active_support/notifications.rb:164:in `block in instrument'
activesupport (4.2.0) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
activesupport (4.2.0) lib/active_support/notifications.rb:164:in `instrument'
actionview (4.2.0) lib/action_view/renderer/abstract_renderer.rb:39:in `instrument'
actionview (4.2.0) lib/action_view/renderer/template_renderer.rb:53:in `block in render_template'
actionview (4.2.0) lib/action_view/renderer/template_renderer.rb:61:in `render_with_layout'
actionview (4.2.0) lib/action_view/renderer/template_renderer.rb:52:in `render_template'
actionview (4.2.0) lib/action_view/renderer/template_renderer.rb:14:in `render'
actionview (4.2.0) lib/action_view/renderer/renderer.rb:42:in `render_template'
actionview (4.2.0) lib/action_view/renderer/renderer.rb:23:in `render'
actionview (4.2.0) lib/action_view/rendering.rb:100:in `_render_template'
actionpack (4.2.0) lib/action_controller/metal/streaming.rb:217:in `_render_template'
actionview (4.2.0) lib/action_view/rendering.rb:83:in `render_to_body'
my config/initializers/10-patchers.rb file
require 'active_record'
module ActiveRecord
class Base
include Redmine::I18n
# Translate attribute names for validation errors display
def self.human_attribute_name(attr, *args)
attr = attr.to_s.sub(/_id$/, '')
l("field_#{name.underscore.gsub('/', '_')}_#{attr}", :default => ["field_#{attr}".to_sym, attr])
end
end
# Undefines private Kernel#open method to allow using `open` scopes in models.
# See Defect #11545 (http://www.redmine.org/issues/11545) for details.
class Base
class << self
undef open
end
end
class Relation ; undef open ; end
end
module ActionView
module Helpers
module DateHelper
# distance_of_time_in_words breaks when difference is greater than 30 years
def distance_of_date_in_words(from_date, to_date = 0, options = {})
from_date = from_date.to_date if from_date.respond_to?(:to_date)
to_date = to_date.to_date if to_date.respond_to?(:to_date)
distance_in_days = (to_date - from_date).abs
I18n.with_options :locale => options[:locale], :scope => :'datetime.distance_in_words' do |locale|
case distance_in_days
when 0..60 then locale.t :x_days, :count => distance_in_days.round
when 61..720 then locale.t :about_x_months, :count => (distance_in_days / 30).round
else locale.t :over_x_years, :count => (distance_in_days / 365).floor
end
end
end
end
end
class Resolver
def find_all(name, prefix=nil, partial=false, details={}, key=nil, locals=[])
cached(key, [name, prefix, partial], details, locals) do
if details[:formats] & [:xml, :json]
details = details.dup
details[:formats] = details[:formats].dup + [:api]
end
find_templates(name, prefix, partial, details)
end
end
end
end
# Do not HTML escape text templates
module ActionView
class Template
module Handlers
class ERB
def call(template)
if template.source.encoding_aware? # HERE IS THE ERROR LINE
# template.source.encoding_aware?
# encoding_aware? method has been deprecated or moved
# First, convert to BINARY, so in case the encoding is
# wrong, we can still find an encoding tag
# (<%# encoding %>) inside the String using a regular
# expression
template_source = template.source.dup.force_encoding("BINARY")
erb = template_source.gsub(ENCODING_TAG, '')
encoding = $2
erb.force_encoding valid_encoding(template.source.dup, encoding)
# Always make sure we return a String in the default_internal
erb.encode!
else
erb = template.source.dup
end
self.class.erb_implementation.new(
erb,
:trim => (self.class.erb_trim_mode == "-"),
:escape => template.identifier =~ /\.text/ # only escape HTML templates
).src
end
end
end
end
end
ActionView::Base.field_error_proc = Proc.new{ |html_tag, instance| html_tag || ''.html_safe }
require 'mail'
module DeliveryMethods
class AsyncSMTP < ::Mail::SMTP
def deliver!(*args)
Thread.start do
super *args
end
end
end
class AsyncSendmail < ::Mail::Sendmail
def deliver!(*args)
Thread.start do
super *args
end
end
end
class TmpFile
def initialize(*args); end
def deliver!(mail)
dest_dir = File.join(Rails.root, 'tmp', 'emails')
Dir.mkdir(dest_dir) unless File.directory?(dest_dir)
File.open(File.join(dest_dir, mail.message_id.gsub(/[<>]/, '') + '.eml'), 'wb') {|f| f.write(mail.encoded) }
end
end
end
ActionMailer::Base.add_delivery_method :async_smtp, DeliveryMethods::AsyncSMTP
ActionMailer::Base.add_delivery_method :async_sendmail, DeliveryMethods::AsyncSendmail
ActionMailer::Base.add_delivery_method :tmp_file, DeliveryMethods::TmpFile
# Changes how sent emails are logged
# Rails doesn't log cc and bcc which is misleading when using bcc only (#12090)
module ActionMailer
class LogSubscriber < ActiveSupport::LogSubscriber
def deliver(event)
recipients = [:to, :cc, :bcc].inject("") do |s, header|
r = Array.wrap(event.payload[header])
if r.any?
s << "\n #{header}: #{r.join(', ')}"
end
s
end
info("\nSent email \"#{event.payload[:subject]}\" (%1.fms)#{recipients}" % event.duration)
debug(event.payload[:mail])
end
end
end
module ActionController
module MimeResponds
class Collector
def api(&block)
any(:xml, :json, &block)
end
end
end
end
module ActionController
class Base
# Displays an explicit message instead of a NoMethodError exception
# when trying to start Redmine with an old session_store.rb
# TODO: remove it in a later version
def self.session=(*args)
$stderr.puts "Please remove config/initializers/session_store.rb and run `rake generate_secret_token`.\n" +
"Setting the session secret with ActionController.session= is no longer supported in Rails 3."
exit 1
end
end
end

Answer 1

encoding_aware? is deprecated in Rails 4.
If you take a quick look at the Rails 3 source for the String class you can find the implementation:
def encoding_aware?
true
end
So to fix your issue you can simply define the missing method by extending the String class, or find and replace any instances of calls to encoding_aware? with true.
This is how the extension would look:
class String
def encoding_aware?
true
end
end