Noob DRY method question

Rails
1

Hi Gurus, I’m learning the Rails framework, and I have this exact
block of html/javascript in two places in an if/else construct in
application.html.erb:

Trying to be DRY, I’d like to put that html/javascript somewhere once,
and call it from within application.html.erb. What’s the best place
to put it, and how do I call it from application.html.erb?

TIA,
Craig

2

The best place to put helper methods for views is in… well…
helpers. In this case, in helpers/application_helper.rb

If you are using layouts, it’s probable you’re using a variant of

<%= yield %>, in which case it would be messy to change the declaration for the inline javascript. I'd suggest adding it as a javascript code in the header of the templates that need to use it. Just add a <%= yield :extra_headers %> declaration in the header of your layout if not already doing so. Seems you are using prototype,

Event.observe($$(‘body’), ‘load’, function() {
Modalbox.show(…)
});

will do the trick

3

Thanks super. It occurred to me that I have this in the wrong place–
I should have it in the template where the user logs in. Which brings
me to another noob question:

Under javascript, I’d do something like

Click here

In my sessions controller I have

<%= submit_tag ‘Log in’ %>

What’s the proper syntax to mix in the javascript call into the
submit_tag?

Many TIA,
Craig

4

Oops, meant to say “In my sessions view I have…”

5

The API documentation will help with these. Bookmark
http://api.rubyonrails.org

6

Thanks super. I’m still getting used to this framework, which
includes figuring out where and how it’s documented :slight_smile: