# Reserved Words
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 _