Rails checkbox and params

Question

I am using many checkboxes in a page as the following:

<%= check_box_tag(:one, value = 1) %></p>

Imagine that it goes from 1 to 20, all the same with the value changed. How can I get in the controller the params of the ones that were checked?

Example: If user checks 3, 5 and 10 how can I get just those params in a single params?

Dave Newton · Accepted Answer · 2011-10-24 00:11:41Z

5

You'll already get only the ones that were checked; unchecked boxes aren't sent to the server.

answered Oct 24, 2011 at 0:11

Dave Newton

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5 Comments

Arthur Wilson Over a year ago

But how can I get them from just a single params? Just does not seems right to get it using a lot of params.

Dave Newton Over a year ago

@ArthurWilson Not sure what you mean. If they're all named the same thing don't they come as an array? (I don't recall off the top of my head, sorry.)

Arthur Wilson Over a year ago

Like if I name them :numbers[] and call params(:numbers) it will work?

Dave Newton Over a year ago

@ArthurWilson The name shouldn't include the colon, but yes, I think so--why not just try it?

Arthur Wilson Over a year ago

Actually I did 'numbers[]' and got the params as params[:numbers]. Thanks for the help.

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