#4787 Add :delegating option to belongs_to and has_one assoc macro - Ruby on Rails

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#4787 ✓stale

Add :delegating option to belongs_to and has_one assoc macro

Reported by Evgeniy Dolzhenko | June 7th, 2010 @ 06:12 PM

Working on a few projects I noticed that the targets for delegate in my models
are usually other associations.

Just for kicks I tried to confirm that assumption statistically.
Here is what I came up with

Results present the code samples found on GitHub and basically say that
I'm not alone in that league and more than 80% of use cases of
delegate inside models is delegating to association.

Attached patch makes it possible to write

class Invoice < ActiveRecord::Base
  belongs_to :client, :delegating => [ :street, :city, :name ]
end

instead of

class Invoice < ActiveRecord::Base
  belongs_to :client
  
  delegate :street, :city, :name, :to => :client
end

add_delegating_option_to_belongs_to_and_has_one_association_macro.diff 8 KB

Comments and changes to this ticket

Rohit Arondekar October 7th, 2010 @ 05:21 AM
- Tag changed from “activerecord associations, 3.x, patch” to “3.x, activerecord, associations, patch”
[bulk edit]
Ryan Bigg October 11th, 2010 @ 10:57 AM
- Tag cleared.
- Importance changed from “” to “Low”
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Nathan Kleyn October 11th, 2010 @ 01:42 PM
+1, this seems like a really useful addition. I've had this same style of code littering my models for too long. =]
Santiago Pastorino February 2nd, 2011 @ 04:30 PM
- State changed from “new” to “open”
This issue has been automatically marked as stale because it has not been commented on for at least three months.

The resources of the Rails core team are limited, and so we are asking for your help. If you can still reproduce this error on the 3-0-stable branch or on master, please reply with all of the information you have about it and add "[state:open]" to your comment. This will reopen the ticket for review. Likewise, if you feel that this is a very important feature for Rails to include, please reply with your explanation so we can consider it.

Thank you for all your contributions, and we hope you will understand this step to focus our efforts where they are most helpful.
Santiago Pastorino February 2nd, 2011 @ 04:30 PM
- State changed from “open” to “stale”