dm-is-indexed
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Description
dm-is-indexed overloads the Model[] method, and allows querying Resources
using their indexed properties.
Examples
require 'dm-is-indexed'
class Atom
include DataMapper::Resource
is :indexed
property :id, Serial
property :symbol, String, :unique => true
property :name, String, :unique => true
property :atomic_weight, Float, :index => true
end
Traditional Array style access is preserved:
Atom[0]
# => #<Atom: @id=1 @symbol="He" @name="Helium" @atomic_weight=4.002602>
Atom[0,1]
# => [#<Atom: @id=1 @symbol="He" @name="Helium" @atomic_weight=4.002602>,
#<Atom: @id=2 @symbol="Ne" @name="Neon" @atomic_weight=20.1797>]
Query Resources based on their unique indexed properties:
Atom["Kr"]
# => #<Atom: @id=4 @symbol="Kr" @name="Krpton" @atomic_weight=83.798>
Atom["Krpton"]
# => #<Atom: @id=4 @symbol="Kr" @name="Krpton" @atomic_weight=83.798>
Atom[83.798]
# => #<Atom: @id=4 @symbol="Kr" @name="Krpton" @atomic_weight=83.798>
Requirements
- dm-core ~> 1.0
Install
$ gem install dm-is-indexed
Copyright
Copyright (c) 2011 Hal Brodigan
See {file:LICENSE.txt} for details.