Ruby on Rails

Hey,
      You can have constants defined in a file called constants.rb in your initializers folder.

DIFFICULTIES = { "Easy" => 0, "Normal" => 1, "Hard" => 2 , 0=>"Easy",1=>"Normal", 2=>"Hard"}

This will help you to get your values both ways easily.


On Saturday, 26 January 2013 18:28:36 UTC+5:30, Linus Pettersson wrote:

Hi!

I have a model which has a field that can have three values only. I store the value in the database as an integer, 0, 1 or 2, but when I display it I want a more appropriate text. And, I want it to be translatable using i18n.

Let's say that it corresponds to how difficult something is. So, 0 represents "Easy", 1 represents "Normal" and 2 represents "Hard".

What I did was first to define it as a hash like this:

DIFFICULTIES = { "Easy" => 0, "Normal" => 1, "Hard" => 2 }

Then I can easily pass this to, for instance, simple_form and it will generate a nice dropdown with the correct values.

But let's say that I have the value and want to display the text. Then I'd have to iterate over the hash to find which key corresponds to the right value. Right? Not that big of an issue when there are three values as in this example, but there could be more.

How do you normally handle these cases? Is there any "best practice" to handle this in an efficient manner?

Cheers,

Linus

--
You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group.
To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-talk+unsubscribe@googlegroups.com.
To post to this group, send email to rubyonrails-talk@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msg/rubyonrails-talk/-/3VIOZjNKUHYJ.
For more options, visit https://groups.google.com/groups/opt_out.