== Author
Aaron Tian
== Contact
Aaron2Ti@gmail.com
RecordsSequence
=============
This plugin adds 'next/previous' methods to every ActiveRecord object.
Using it you could easily find next/previous object accroding your requirements.
INSTALL
============
This plugin requires Rails 2.1 currently. Install easily by below command:
ruby script/plugin install git://github.com/Aaron2Ti/records_sequence.git
USAGE
============
After installed, this plugin would mixin two methods(next and previous) to
every ActiveRecord object. So it's cool to do:
class User < ActiveRecord::Base
end
foo = User.first
bar = foo.next
foo_neighbour = foo.previous # returns nil if foo has no previous neighbour
# The sequence's sorted column is defined by the new option :sorted_by,
# which default is the 'id' column.
foo = User.last
pre_foo_sorted_by_id = foo.previous
pre_foo_sorted_by_age = foo.previous(:sorted_by => 'age')
# Also works fine with most other ActiveRecord's find options:
foo = User.find 30
foo.next(:conditions => ['age < ?', 20])
foo.previous(:offset => 2)
foo.next(:sorted_by => 'address', :order => 'name DESC, age')
foo.previous( :sorted_by => 'age', :conditions => ['age < ?', 20],
:order => 'name DESC, address', :offset => 2 )
Try Yourself!
Copyright (c) 2008 [Aaron Tian Email: Aaron2Ti@gmail.com],
released under the MIT license
