From: yermej <yermej@...>
Date: 2010-07-12T06:05:06+09:00
Subject: Re: How to pass a hash as a param to a method called through eval?

On Jul 11, 2:57 pm, Alex Stahl <ast...@hi5.com> wrote:
[...]
> Problem is that 'call['params']' is treated as a string by the receiver,
> not the hash I intended to pass.  Tried using casting operations first,
> like .to_s and then .to_hash, but the to_hash call fails w/ no method
> error.  Instead the hash comes through as a string.  How can I pass it
> so that it remains a hash, and retains its structure for key/val reading
> in the receiver?
>

This will do it:

eval("#{call['action']}(call['params'])")

Depending on context, you can probably completely avoid using eval:

method(call['action']).call(call['params'])

When you use #{call['params']}, I think that calls #to_s on the Hash
which causes what you're seeing.

Jeremy