returning an ActiveRecord::Relation from a has_many association

[Epoch]

Hi guys,

ActiveRecord in rails3 has a nice improvement where most of the API
returns a ActiveRecord::Relation so you can chain things together.

> Asset.where(:project_id => 1).class => ActiveRecord::Relation

One exception at the moment when using an association, it returns an
Array:

class Project
has_many :assets
end

> Project.first.assets.class => Array

The problem with this is we lose chain-ability, which means I can't do
things like this:

> @project = Project.first
> @project.assets.where(:active => true)

though I can get the same thing with something like this

> Asset.where(:project_id => 1, :active => true)

Personally I prefer lazy loading and chaining and was wondering if
it's possible with associations, or am I missing something, any
thoughts?

Daniel

[Darcy Laycock]

AR is deceiving and actual returns a proxy that passes .class to the loaded data.

Try this: @project.assets.where(:active => true).class

It should be what you expect (e.g. they are chainable in the same fashion)

[Ryan Bigg]

Actually, it's not Array. It pretends to be an Array.

You are still able to do Project.first.assets.where(...).

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