Ruby on Rails

Ruby on Rails Reserved Words


Introduction

You should be careful using these words for variable, model name, method name or etc.

Reserved Word List

  • ADDITIONAL_LOAD_PATHS
  • ARGF
  • ARGV
  • ActionController
  • ActionView
  • ActiveRecord
  • ArgumentError
  • Array
  • BasicSocket
  • Benchmark
  • Bignum
  • Binding
  • CGI
  • CGIMethods
  • CROSS_COMPILING
  • Class
  • ClassInheritableAttributes
  • Comparable
  • ConditionVariable
  • Config
  • Continuation
  • DRb
  • DRbIdConv
  • DRbObject
  • DRbUndumped
  • Data
  • Date
  • DateTime
  • Delegater
  • Delegator
  • Digest
  • Dir
  • ENV
  • EOFError
  • ERB
  • Enumerable
  • Errno
  • Exception
  • FALSE
  • FalseClass
  • Fcntl
  • File
  • FileList
  • FileTask
  • FileTest
  • FileUtils
  • Fixnum
  • Float
  • FloatDomainError
  • GC
  • Gem
  • GetoptLong
  • Hash
  • IO
  • IOError
  • IPSocket
  • IPsocket
  • IndexError
  • Inflector
  • Integer
  • Interrupt
  • Kernel
  • LN_SUPPORTED
  • LoadError
  • LocalJumpError
  • Logger
  • Marshal
  • MatchData
  • MatchingData
  • Math
  • Method
  • Module
  • Mutex
  • Mysql
  • MysqlError
  • MysqlField
  • MysqlRes
  • NIL
  • NameError
  • NilClass
  • NoMemoryError
  • NoMethodError
  • NoWrite
  • NotImplementedError
  • Numeric
  • OPT_TABLE
  • Object
  • ObjectSpace
  • Observable
  • Observer
  • PGError
  • PGconn
  • PGlarge
  • PGresult
  • PLATFORM
  • PStore
  • ParseDate
  • Precision
  • Proc
  • Process
  • Queue
  • RAKEVERSION
  • RELEASE_DATE
  • RUBY
  • RUBY_PLATFORM
  • RUBY_RELEASE_DATE
  • RUBY_VERSION
  • Rack
  • Rake
  • RakeApp
  • RakeFileUtils
  • Range
  • RangeError
  • Rational
  • Regexp
  • RegexpError
  • Request
  • RuntimeError
  • STDERR
  • STDIN
  • STDOUT
  • ScanError
  • ScriptError
  • SecurityError
  • Signal
  • SignalException
  • SimpleDelegater
  • SimpleDelegator
  • Singleton
  • SizedQueue
  • Socket
  • SocketError
  • StandardError
  • String
  • StringScanner
  • Struct
  • Symbol
  • SyntaxError
  • SystemCallError
  • SystemExit
  • SystemStackError
  • TCPServer
  • TCPSocket
  • TCPserver
  • TCPsocket
  • TOPLEVEL_BINDING
  • TRUE
  • Task
  • Text
  • Thread
  • ThreadError
  • ThreadGroup
  • Time
  • Transaction
  • TrueClass
  • TypeError
  • UDPSocket
  • UDPsocket
  • UNIXServer
  • UNIXSocket
  • UNIXserver
  • UNIXsocket
  • UnboundMethod
  • Url
  • VERSION
  • Verbose
  • YAML
  • ZeroDivisionError
  • @base_path
  • accept
  • Acces
  • Axi
  • action
  • attributes
  • application2
  • callback
  • category
  • connection
  • database
  • dispatcher
  • display1
  • drive
  • errors
  • format
  • host
  • key
  • layout
  • load
  • link
  • new
  • notify
  • open
  • public
  • quote
  • render
  • request
  • records
  • responses
  • save
  • scope
  • send
  • session
  • system
  • template
  • test
  • timeout
  • to_s
  • type
  • URI
  • visits
  • Observer

Database Field Names

  • created_at
  • created_on
  • updated_at
  • updated_on
  • deleted_at
  • (paranoia
  • gem)
  • lock_version
  • type
  • id
  • #{table_name}_count
  • position
  • parent_id
  • lft
  • rgt
  • quote_value

Ruby Reserved Words

  • alias
  • and
  • BEGIN
  • begin
  • break
  • case
  • class
  • def
  • defined?
  • do
  • else
  • elsif
  • END
  • end
  • ensure
  • false
  • for
  • if
  • module
  • next
  • nil
  • not
  • or
  • redo
  • rescue
  • retry
  • return
  • self
  • super
  • then
  • true
  • undef
  • unless
  • until
  • when
  • while
  • yield
  • _ FILE _
  • _ LINE _





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This modified text is an extract of the original Stack Overflow Documentation created by following contributors and released under CC BY-SA 3.0
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