Conditional Controller in Rails

Question

I am very new to Rails, so bear with me while I learn.

I have a model, show, with an attribute preview_url. How can I build a call that only returns shows that have a non-null preview_url and what would be the best way to word the controller method?

i.e. localhost:3000/shows/?preview_url ??

Thanks in advance.

You should read a book on rails. That'll give you structured knowledge and save you (and us) some time :) — Sergio Tulentsev
– Sergio Tulentsev, Commented May 24, 2012 at 22:16

PinnyM · Accepted Answer · 2012-05-24 22:17:56Z

2

In your ShowsController you would have an action named with_preview like this:

def with_preview
  @shows = Show.where('preview_url IS NOT NULL').all
end

The url for this action would be /shows/with_preview

answered May 24, 2012 at 22:17

PinnyM

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2 Comments

Baub Over a year ago

I am getting Couldn't find Show with id=with_preview when I try this. I have the standard index and show methods in place.

Ismael Over a year ago

Good practice would be creating a named scope on your model. So you would do Show.whith_preview.all. So if you do need that condition in another controller action you don't need to repeat the where clause.

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