This project is archived and is in readonly mode.

#6210 ✓stale

ActiveRecord "find" doesn't accept a :distinct parameter

Reported by Romain | December 22nd, 2010 @ 05:45 PM

When using AR's find method, there's no provision for passing a :distinct option.

Let's say I have a table "Messages", with a column "author_id". I'd like to be able to perform the following query :
SELECT DISTINCT author FROM messages;

I think it would be pretty sweet to be able to do something along the lines of
Message.find(:all, :distinct => :author)

So basically, here are my question :

  • Would that be a good idea ? I guess not, otherwise I assume it would have been done already...
  • If it is, I'd be glad to contribute a patch. Any hints about the proper way to implement that ?

Comments and changes to this ticket

  • Oriol Gual

    Oriol Gual December 27th, 2010 @ 03:51 PM

    In the meantime you could use something like this:

    Although is not the same

  • rails

    rails March 28th, 2011 @ 01:00 AM

    • 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.

  • rails

    rails March 28th, 2011 @ 01:00 AM

    • State changed from “open” to “stale”

Create your profile

Help contribute to this project by taking a few moments to create your personal profile. Create your profile »

<h2 style="font-size: 14px">Tickets have moved to Github</h2>

The new ticket tracker is available at <a href=""></a>

People watching this ticket