How do I make an ActiveRecord scope that doesn't affect the query in Rails 3 using Arel (presumably)?

Question

Essentially I am looking for a no-op type of relation to apply to a chain of scopes.

Lets say I have a chain of scopes:

Post.approved.published.all

Now, for debugging purposes, I wish to make the published scope do nothing at all, so that the chain will only return approved posts, regardless of whether they are published or not.

What would I return in the following method:

def self.published
  # what to return?
end

user229044 · Accepted Answer · 2013-05-03T13:37:58.800

23

Make published an alias for all, or use scoped to return a relation to which additional conditions can be chainged:

def self.published
  all
  #or
  scoped
end

I would use a scope, returning all...

scope :published, all

or, make it an alias for scoped:

scope :published, scoped

edited May 03 '13 at 13:37

answered Sep 07 '11 at 21:46

user229044

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I was definitely looking for all, its so obvious now I'm not sure why I didn't think of that. – jakeonrails Sep 07 '11 at 23:07
2

This is really old, but if you want the Relation rather than an array, use `scoped` to return an anonymous scope (Rails 3). – Jacob Brown May 03 '13 at 13:31
@kardeiz Yes, this is definitely the better method, I was unaware of it at the time I wrote this answer. – user229044 May 03 '13 at 13:39
9

Now in Rails 4 you should no longer use `scoped`, but go back to `all`. :) `all` now returns a relation. – Eric Simonton Oct 02 '15 at 14:08

How do I make an ActiveRecord scope that doesn't affect the query in Rails 3 using Arel (presumably)?

1 Answers1