How to eager load assocations

[Ganesh Ranganathan]

I have  the following associations in my ActiveRecord models 

1) Groups

2) Users

Each Group has and belongs to many users 

There is an api endpoint - <Site>/api/v1/groups which returns a list of the groups. In the controller when I am sending a list of 20 groups, the Users property is not populated beforehand in the json structure. Anyway to include the Users property in the json response.

Thanks,

Ganesh

[Andrei G.]

You can use Group.includes(:users)

See here more info
http://guides.rubyonrails.org/active_record_querying.html#eager-loading-associations

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[Ganesh Ranganathan]

On Fri, May 2, 2014 at 2:54 PM, Andrei G. <li...@ruby-forum.com> wrote:

You can use Group.includes(:users)

​Includes didn't work. But I asked on IRC and someone suggested using a custom serializer. 

That worked like a charm