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HTML form w/ method = "get" VS. JQuery $.get

Answer 1

A:

Which is failing - the JQuery get or your blank form?

Dav Evans 2010-09-17 12:11:29

the JQuery get is failing.

Toddeman 2010-09-17 12:12:33

This should have been a comment not an answer, but it is a valid question.

James Black 2010-09-17 12:46:52

Answer 2

+3 A:

Are you sure you are using $.get correctly. It fetches the page asynchronously and executes the callback function you specify. On the other hand, when the empty form is submitted the page is changed.

This would work for you.

HTML

<button id="get">Get</button>
<div id="target"></div>

Javascript

$('#get').click(function() {
    $.get('example.cgi', function(data) {
        $('#target').html(data);
    });
});

Nithesh Chandra 2010-09-17 12:22:02

i have read the jquery get documentation, and it says i may use it calling only $.get('example.cgi');. i can try the above code though just to make sure.

Toddeman 2010-09-17 12:35:02

Its legal to call $.get('example.cgi') but the returned data gets lost. I'm not sure why it is even allowed but that's how it works. If you want to do something with the returned data, you HAVE to define a callback function. There's a simpler alternative if you are interested. Check for "load" function in JQuery docs.

Nithesh Chandra 2010-09-17 12:48:46

maybe we have reached the source of my problem. at this point, i dont WANT to do anything with the return data. those buttons above turn on and off lights. all i care is that the 'rflcc.cgi' gets called. once it does, whatever it returns may be discarded. should i be using jquery load instead? (thank you for your patience, i am new to jquery)

Toddeman 2010-09-17 12:56:08

It sounds like $.get with no callback is actually what you want.

RickF 2010-09-17 13:02:23

I agree with RickF. If you just need to execute some server-side script when the button is clicked, just use $.get to call it. Though, I would suggest using $.post which makes it more clear about your intent. A GET request is not supposed to affect the server-side information. You should use POST for that.

Nithesh Chandra 2010-09-17 13:13:27

errr... this is getting frustrating now. im beginning to think that its something wrong with the implementation of the server on the embedded device. i tried all of the above. a jquery get fails. a jquery post fails. a blank form post fails. a blank form get succeeds. the only thing that succeeds is a blank form get. im am now thoroughly lost... (especially since, as you guys mentioned above, i SHOULD be using a POST... that makes most sense)

Toddeman 2010-09-17 14:28:59

Answer 3

+1 A:

As @Nithesh commented, $.post() is really the right tool for the job when you're not getting information back. As a bonus, POST requests should never be cached by the browser, but GET requests can be, and that theoretically could be your problem.

Also, your blank form isn't truly blank - the submit button has a name and value which get submitted as parameters. Is it possible that your cgi script is where the problem lies instead? It seems unlikely, but I have to ask...

For diagnostic purposes, you might want to do something like this:

$("#fon").click(function(event) {
    $.post("rflcc.cgi", function() { alert "Done!"; });  
});

That will tell you if the request is happening at all. If you're not already, look into the FireBug addon for Firefox as a tool to help diagnose Ajax stuff.

RickF 2010-09-17 14:40:20

i have firebug, im not really sure what to look at though. for problems like this before i have always checked the 'net' tab. i could see when requests were going out and when they werent, but thats about the extent of my knowledge on that. im going to try what you just posted though, i want to see if even THAT works.

Toddeman 2010-09-17 14:49:25

found the problem... completely unrelated. i marked your answer because it led me to find the real problem. thanks

Toddeman 2010-09-17 15:18:38

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HTML form w/ method = "get" VS. JQuery $.get

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