From: "Ivan V." <m-ruby-forum.com@...>
Date: 2008-04-26T03:43:03+09:00
Subject: How to return more than one object to a block

Hi,

I'm kinda new to blocks, and I'm trying to create my own Rails form
builder, which I want to work like this:

form_for ... do |f|
  f.form_label 'Some label' do
    f.text_field :something
    link_to 'somewhere', somewhere_path
  end
end

In my form_label method I capture the block output and wrap some HTML
around it, but the problem is that the block only captures the last
statement, in this case, the link_to.

Here's a more clean explanation:

def dothis
  yield
end

x = dothis() {
  'this'
  'that'
}

How do I make 'x' be an array holding both the strings. Of course I can
just make those strings into an array, but I want to do it from the
dothis method.

What do you know... After writing this, something occurred to me:

def dothis
  yield([]).join("\n")
end

dothis {|a|
  a << 'this'
  a << 'that'
}

So that works. Would this be the best approach?

Thanks!

- Ivan
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