File path inconsistency?

rubyonrails-talk
1

Hi all,

i am a beginner of ROR. please excuse me if i ask newbie questions.

i use Netbeans 6 as my IDE. i keep some of my image files under public/ images/

my question is:

in the controller the images files' path is "/public/images/", but in View the path becomes "/images/", why?

Thanks.

2

Mister Yu wrote:

in the controller the images files' path is "/public/images/", but in View the path becomes "/images/", why?

Because the former is the path relative to RAILS_ROOT on your file system, and the latter is the path as part of an URI (an URL).

The Rails way to handle the latter is always thru image_path() or image_tag(). Don't get in the habit of hard-coding the /image/ part - just say image_path('myImage.png').

3

Thanks Philip for the reply.

how to avoid hard-coding the path in controller? for example, i need to write something like this:

if File.exist?("/public/images/abc.png")    do some stuff here end

Thanks.