Methods

Stringscapitalize!

centerchomp!

chop!concatcountcrypt

delete!downcase!

dumpeach

each_byteempty?

gsub!hashhex

include?indexinternlength

ljust, rjustnext!

octreplace

reverse!rindex

scanslice!split

squeeze!strip!sub!sum

swapcase!tr!

tr_s!unpackupcase!

upto

Regexescape

last_matchnew

quotecasefold?

kcodematchsource

Time

asctimectime

daygmt?

gmtimehourisdst

localtimemday

minmon

monthsec

strftimetv_sec

tv_usecusec

utcutc?

wdayydayyearzone

Methods Arraysassocatclearcollect!compact!concatdeletedelete_atdelete_ifeacheach_indexempty?eql?fillfirstflatten!include?indexindexesjoinlastlengthnitemspackpoppushrassocreject!replacereverse!reverse_eachrindexshiftslice!sort!uniq!unshift

Validationcondition_block?create!evaluate_conditionvalidatevalidate_on_createvalidate_on_updatevalidates_acceptance_ofvalidates_associatedvalidates_confirmation_ofvalidates_eachvalidates_exclusion_ofvalidates_format_ofvalidates_inclusion_ofvalidates_length_ofvalidates_numericality_ofvalidates_presence_ofvalidates_size_ofvalidates_uniqueness_of

Enumerable Mixincollecteach_with_indexentriesfindfind_allgrepinclude?maxminrejectsort

Available free from AddedBytes.com

Ruby on Rails Logo used with permission.

REGULAR EXPRESSIONS SYNTAX

^

$

.

(a|b)

(...)

[abc]

[^abc]

a?

a*

a+

a{3}

a{3,}

a{3,6}

!(pattern)

Start of string

End of string

Any single character

a or b

Group section

Item in range (a or b or c)

Not in range (not a or b or c)

Zero or one of a

Zero or more of a

One or more of a

Exactly 3 of a

3 or more of a

Between 3 and 6 of a

"Not" prefix. Apply rule when

URL does not match pattern.

METHODS NOTE

! - Denotes where a tailing ! may be

! - used. A colourless ! denotes that the

! - ! is compulsory.

DEFAULT DIRECTORY STRUCTURE

rails_root

app

apis

controllers

application.rb

helpers

application_helper.rb

models

views

layouts

components

config

environments

development.rb

production.rb

test.rb

database.yml

environment.rb

routes.rb

db

doc

lib

log

development.log

production.log

server.log

test.log

public

images

javascripts

controls.js

dragdrop.js

effects.js

prototype.js

stylesheets

.htaccess

404.html

500.html

dispatch.cgi

dispatch.fcgi

dispatch.rb

favicon.ico

index.html

script

test

fixtures

functional

mocks

development

test

unit

test_helper.rb

vendor

PRE-DEFINED VARIABLES

$!

$&

$`

$'

$+

$N

$=

$/

$\

$,

$.

$>

$_

$0

$*

$stderr

$stdin

$stdout

$-a

$-d

$-l

$-p

$-v

Exception information

String of last match

String left of last match

String right of last match

Last group of last match

Nth group of last match

Case insensitive flag

Input record separator

Output record separator

Output field separator

Current line number of

last file read

Default output for print

Last input line of string

Name of script

Command line arguments

Standard error output

Standard input

Standard output

True if -a is set.

Status of -d switch

True if -l is set

True if -p is set

Verbose Flag

RESERVED WORDS

=begin

=end

BEGIN

END

alias

and

begin

break

case

class

def

defined?

do

else

elsif

end

ensure

false

for

if

in

module

next

nil

not

or

redo

rescue

retry

return

self

super

then

true

undef

unless

until

when

while

yield