U

Index

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%U date format string option
underscores (_), italicizing text in RDocs
Unicode
unit tests
     model validations and
unsource command (plugin)
update_code task
update_perms method
updating/upgrading
url_for method 2nd
url_for_gravatar method
URLs
     generating dynamically
user groups (Ruby)
user profiles, personalizing
:user variable
User.transaction( ) method
:user_name parameter (ActionMailer::Base.server_settings)
users
     input fields, processing dynamically
     many-to-many relationships
:utc option (environment.rb)
UTF-8 encoding