Alias for rails model

Question

My model name in one of rails app is OrganizationUser and is there any way to create alias name for this model as OU or OrgUser so that I can use in rails console..

http://stackoverflow.com/questions/7795809/class-alias-in-ruby — Sergey Kishenin, Jun 22 '12 at 10:49

score 11 · Accepted Answer · answered Jun 22 '12 at 13:45

11

If kishie's answer does not suit you you could create another model that inherits from OrganizationUser:

class OU < OrganizationUser
end

or

class OrgUser < OrganizationUser
end

answered Jun 22 '12 at 13:45

pepe

555
4
8

This is actually a little risky under a few circumstances, particularly with STI models, or for anything that expects specific class types. It'll work, but makes me a little nervous. – Dave Newton Jun 23 '12 at 03:43
@DaveNewton: To tell the truth I totally missed that the op's goal was to use the names in the console, in which case I would have gone for kishie's answer (OU = OrganizationUser), I've used that in the past myself. However I don't see a problem with the above code if what you are looking after is just using a different name for a given class. – pepe Jun 23 '12 at 13:39
2

Under STI it would create the wrong type column in the DB; this *may* not be a problem, but it introduces a type hierarchy that doesn't really exist. Not *necessarily* an issue, like I said, but IMO not a great idea--YMMV :) – Dave Newton Jun 23 '12 at 13:49
OU = OrganizationUser works well, but where can I put that so that it automatically runs every time I run rails c? – Roman Gaufman Jun 24 '22 at 13:07
@RomanGaufman Playing with Rails 7 I created `renamers/u.rb` inside of the `app` folder with just one line: `U = User`. You should be able to do something similar to that for your class. – pepe Jun 26 '22 at 01:09

AnkitG · Answer 2 · 2012-06-23T03:39:46.290

To work on a more cleaner side . Suppose you have a model

   class Home < ActiveRecord::Base
      class << self
        def agent
            p "This is a Dummy String"
       end
    end
    end

Step 1

Create a alias.rb inside your lib. Which will contain your Alias mappings and Constants holding those mapping

module Alias
C = Home #to make a alias of class
H = Home.new  #a class object alias
end

Step 2

Goto rails c

rails c
"inside it for loading"
Loading development environment (Rails 3.2.1)
ruby-1.9.3-preview1 :001 > require 'alias'
 => true

ruby-1.9.3-preview1 :002 > include Alias
 => Object 

ruby-1.9.3-preview1 :003 > C
 => Home(id: integer, created_at: datetime, updated_at: datetime)

ruby-1.9.3-preview1 :004 > H
 => #<Home id: nil, created_at: nil, updated_at: nil>

Alias for rails model

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