Adding to Prototype.js Ajax Request

Question

I have a website that has lots of prototype.js ajax calls and now we need a function called before each of them. Is there a way to add to the function without actually changing the prototype.js script? Basically we are looking for a way so we don't have to go and update every call.

For example:

OLD:
new Ajax.Request(SOMEURL);

NEW:
somefunction();
new Ajax.Request(SOMEURL);

Is there a way to create the same thing as the NEW, but within the Ajax.Request?

Thanks,

By "not overwriting" do you mean you don't want to edit the source, or do you neither want to patch the function somewhere else? — pimvdb
– pimvdb, Commented Nov 30, 2011 at 20:29
Yeah I don't want to edit the source as I don't want to have to always modify every update of prototype. What I would like is if I could somehow add/extend it in a separate js file. — fanfavorite
– fanfavorite, Commented Nov 30, 2011 at 20:36

clockworkgeek · Accepted Answer · 2011-11-30 21:34:30Z

1

Prototype provides Ajax.Responders so you can do this:

Ajax.Responders.register({
    onCreate: someFunction
});

answered Nov 30, 2011 at 21:34

clockworkgeek

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