LegacyMappings¶ ↑

Creates an easy way to map column names from what you want to what your (legacy) database define.

Installation¶ ↑

Put legacy_mappings into your vendor/plugins directory

Example¶ ↑

Define your mappings from your legacy column names to your preferred ones:

class LegacyTable < ActiveRecord::Table
  uses_legacy_mappings :ContantizedColumnName => :name, :annoyingCamelCasedFlag => :flag
end

You should then be able to set, access, and find by your new names:

l = LegacyTable.create!(:name => 'foo', :flag => true)
l.flag = false
l.name?                                                   #=> true
LegacyTable.find(:all, {:name => 'foo'})                  #=> l
LegacyTable.find_by_name('foo')                           #=> l

Currently find only works with the hash version. String, conditions array, and name bind conditions do not work (unless you want to contribute and add them, would be very cool to have.)

Copyright © 2009 Reid MacDonald <reid@laruby.com>, released under the MIT license