> On 2015-Sep-4, at 15:56 , Николай Спелый <peavey515...@gmail.com> wrote:
>
> Great !
> I already try write this logic but it not works. But when i copy-paste your
> variant it's work.
> So difference is in formating code, i write in one line, you write in three
> lines.
> That's nice for resolving problem, but why it's works in divided style of
> ruby and not works in one-line style ?
> My one-line is <%= Chat.find_by(id: 6).chatusers.each { |chat_user|
> chat_user.user } %> which about i told.
So you have:
<%= something %>
which ERB interprets as call .to_s on the result of evaluating something and
add that to the output (possibly after making it HTML-safe depending on your
Ruby on Rail version)
Therefore, what is the value of
Chat.find_by(id: 6).chatusers.each { |chat_user| chat_user.user }
Well, that's just something.each {|…| … } which has the value of something. In
your case, the same as if you just had:
Chat.find_by(id: 6).chatusers
This is probably some ActiveRecord proxy for the association. The default .to_s
is very likely similar to .inspect and looks something like:
#<ActiveRecord::… >
So plop that into your HTML and a browser sees the <…> as an unknown element
and does nothing so you're left with:
#
in your page. Does that make sense to you?
-Rob
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