render partials in helper

rubyonrails-talk
1

hee people,

Is it possible to render partials in helpers ?

Why I want this: I have a menu that list many links but some of those items are children of other items. so i want to have different partials .

Of course I could set the ruby code in my view but that is not cool (I think :P)

I hope someone nows if this is possible

jeljer te wies

2

hee people,

Is it possible to render partials in helpers ?

Yup, that's fine. Is there a reason you thought it wouldn't be possible?

Fred

3

well I tryed to have a helper method like this:

def test render :partial 'menu/test' end

this didn't work

4

well I tryed to have a helper method like this:

def test render :partial 'menu/test' end

this didn't work

That's syntactically incorrect - it should be render :partial => 'menu/test'

If that's not the problem then you're going to have to be a little
more explicit than 'it didn't work'

Fred

5

Frederick Cheung wrote:

That's syntactically incorrect - it should be render :partial => 'menu/test'

If that's not the problem then you're going to have to be a little more explicit than 'it didn't work'

Fred

OOh I am sorry ... I wasn't clear.

what i have now is this:

def set_menu     render :partial => 'menu/menu_item'     render :partial => 'menu/menu_item'   end

I want to render more partials in one helper method. But it renders only one partial !... so my real question is .

is it possible to render multiple partials in one helper method

6

Frederick Cheung wrote:

what i have now is this:

def set_menu render :partial => 'menu/menu_item' render :partial => 'menu/menu_item' end

The problem here is that you might not quite understandr what happens when you do <%= some_helper%> Erb basically calls that method, calls to_s on the result and sticks it into the document, so the key thing here is getting your set_menu helper to return the right thing When you call render :partial => '...' a string is returned containing the appropriate data. In ruby the value returned by a function is whatever the last statement evaluated, ie the second call to render. If you want to return the concatenation of those two things then you need to stick them together yourself, eg

def set_menu   render( :partial => 'menu/menu_item') +   render( :partial => 'menu/menu_item') end

Fred

PS: if that was your original question, saying so from the start would have saved time for everyone involved.

7

yes you are right... But at first I thought that the problem was that it wasn't possible to render partials at al. (and I couldn't find the answer on google)

thanxs ! allot ... and I hope to answer questions on this forum as soon as I have a better understanding of ruby and rails.