ruby/rails tips, tricks, solutions

solutions.markdown

Ruby and Rails Tips, Tricks and Solutions

• 'normalize_yaml_input' error might be caused by wrong locale settings.

  # CLI
  locale
  # => "LC_ALL ="
  export LC_ALL="en_US" # (or your locale of choice)
  

• "merge!': can't convert nil into Hash" error in Rails 3.1. Rails 3.1 uses Psych as a yaml parser. Change it back to syck:

  # config/application.rb
  YAML::ENGINE.yamler = "syck"

• Remove database from rails 3: comment out

  # config/application.rb
  require "active_record/railtie"

• `normalize_yaml_input' error: see rubygems/rubygems#149

  export LC_ALL="en_US"
  export LANG="ISOD-8859-1"
  

• 'Warning: NLS_LANG is not set. fallback to US-ASCII.' when using oracle_enhanced:

  # in the Oracle database:
  select userenv('language') from dual; # => e.g. 'AMERICAN_AMERICAN.WE8ISO8859P15'
  # config/boot.rb
  ENV['NLS_LANG'] = 'AMERICAN_AMERICA.WE8ISO8859P15'