@coffee_hour = Plan.find_by_event(:coffee_hour) ...Is it possible to link using a variable like this?

Question

My Links table has five different events and I use partials because they are scattered around the page. As an examples, "coffee_hour", and "wine_time." Each event has a url and a time. In my controller I have:

 @coffee = Link.find_by(event: "coffee")
 @wine = Link.find_by(event: "wine")

And my partials look something like this:

  <p>Join us for a cup of coffee... <%= link_to "by clicking here.", coffee.url %> ...</p>

and on my home page the code:

  <%= render partial: "links/coffee", locals: { coffee: @coffee } %>

There are separate partials for all five event types. But thee above results in "unidentified method 'url' for nil Nil:Class. When I insert the phrase collection: @links, before locals, I don't get an error, but also nothing is returned. My code works in the console, but my Rails syntax must be off. Code in console:

  @coffee = Link.find_by(event: "coffee")
  @coffee.url # => correct url

Answer 1

You have an error in your controller code. Change it to this:

@coffee = Link.find_by(event: ‘coffee’)
@wine = Link.find_by(event: ‘wine’)

You can see, currently, you have parens around just the strings. You either need the parens around event: string or remove the parens altogether.

Answer 2

I finally learned that my problem was I didn't have anything under def index in the links controller. putting

  @links = Link.all

solved the issue for me. Dumb mistake. Thanks all.