When you call "$.get". it does it *asynchronously*, meaning it goes
off and makes the Ajax call but does not wait for it to get back with
a result before continuing....
You have two choices:
1) Use the more general "$.ajax" call and run your remote code
synchronously (yuck! you'll potentially hang up the user's browser)
2) Learn about callbacks (which is the event raised *when* the $.get
call does return)
So like if your code is like:
if (beforeDelete(NODE)) {
// Do something if true
}
else {
// Do something if false
}
to something like
$.get(
"/isdeletable",
{ 'node': [ NODE ]} ,
function (data) {
if (data == 1) {
// Do something if true
} else {
// Do something if false
}
);
On Oct 9, 6:49 am, nomen <[EMAIL PROTECTED]> wrote:
> Hi all:
> I´m new to JQuery, so maybe i´m doing something badly.
>
> I have a previously defined javascript tree, i´m rewriting the code
> to use ajax.
>
> This tree has a function
> beforedelete: function(node)
> If this function returns false, no node will be deleted in user
> interface. If sends true, the node is deleted.
>
> I need to use $.get to decide if the tree node is deletable or not,
> so i write this code:
>
> beforedelete: function(NODE) // before delete - should return true |
> false
> {
> isOK = false;
> $.get("/isdeletable", { 'node': [ NODE ]} ,
> function (data)
> {
> if (data == 1)
> isOK = true;
> else
> isOK = false;
>
> }
> );
> return isOK;
> }
>
> isOK is a global variable.
> I can get the result (for the moment simple 0 or 1) from the server
> side script. It works correctly.
>
> The problem is that beforedelete finished his work before i get the
> data from the server (i discover it putting an alert before the
> return).
> So it seems that this method is not valid, but i need to analyze
> the answer and that beforedelete sends the correct value.
>
> What is the way to do it?
> Thank you in advance.
