Checking a value in RJS

Rails
1

Basically I want to toggle the value of an element on a page via RJS.
I can set the value fine, but I simply cannot figure out how to check
the current value. This is essentially what I want to do:

if page[“element_id”].value == “0”
page[“element_id”].value = “1”
else
page[“element_id”].value = “0”
end

The assignment lines (e.g. page[“element_id”].value = “1”) work fine.
It’s that line to check the current value of the element that is
killing me.

Any experience with this?

(Note: I have the RJS Templates for Rails PDF “book”, but there is no
mention of detecting or assigning values. And as usual, there isn’t
much else out there on the 'Net.)

2

You can do something like

page << “if(blablabla){”
page[“element_id”].value = “1”
page << “}else{”
page[“element_id”].value = “0”
page << “}”

Not pretty but gets the job done.

Fred

3

Thanks. I was thinking about your suggestion, but I did not wish to go
on a wild goose chase and I couldn’t find any confirmation for the idea
out on the 'Net. Anyway, it looks like the above pretty much solves
the problem.