[jQuery] Re: HowTo: Trigger error callback in ajax request
On Dec 17, 9:57 am, MorningZ wrote:
> "Is it a non-200 status code"
>
> I can't say it's 100% of the time, but in my code it seems to be the
> case
Ding, ding, ding. Looks like that's it. In my PHP script, this is what
I did to test...
try {
throw new Exception ( 'Something I made up' );
}
catch ( Exception $e ) {
header ( 'HTTP/1.0 500 Internal Server Error', true, '500' );
echo $e->getMessage();
}
My error callback picks it up nicely and reports the message in
XMLHttpRequest.responseText.
Thanks again.
[jQuery] Re: HowTo: Trigger error callback in ajax request
"Is it a non-200 status code"
I can't say it's 100% of the time, but in my code it seems to be the
case
this code:
function reqJSON(url, params, success, error) {
var CallParams = {};
CallParams.type = params.Method || "POST";
CallParams.url = url;
CallParams.processData = true;
CallParams.data = params;
CallParams.dataType = "json";
CallParams.success = success;
if (error) {
CallParams.error = error;
}
$.ajax(CallParams);
}
goes into the error event if a 500 status code is encountered during
the process
On Dec 17, 9:36 am, "Andy Matthews" wrote:
> I think the problem is that you're expecting a different sort of error than
> what the AJAX call is expecting. That method only looks for an error in what
> it's trying to do. The server process is solely separated from the JS
> process.
>
> You could check for a string of "error" on success, then pass that over to
> an error method.
>
> andy
>
> -Original Message-
> From: jquery-en@googlegroups.com [mailto:jquery...@googlegroups.com] On
>
> Behalf Of Rob Wilkerson
> Sent: Wednesday, December 17, 2008 8:26 AM
> To: jQuery (English)
> Subject: [jQuery] HowTo: Trigger error callback in ajax request
>
> I have an ajax request being sent to a PHP script. If that script captures
> an error, I'd like it to echo that error and return whatever it needs to
> return to trigger the error callback in my ajax call. I can't seem to find
> what that is. Is it a non-200 status code? Simply throwing an error (throw
> new Exception()) just triggers the success callback with the error text (not
> unexpectedly, of course).
>
> I'm using the jQuery form plugin and using the .ajaxSubmit() method, but I
> suspect the answer would be the same for a core .ajax() call.
> My simplified case looks like this:
>
> $(document).ready ( function() {
> $( '#CommercialVendorAddForm' ).submit (
> function() {
> $(this).block();
>
> $(this).ajaxSubmit ({
> beforeSubmit: function() {
> alert ( 'validating' );
> },
> success: function ( responseText,
> responseCode ) {
> alert ( 'success' );
> alert ( responseText );
> },
> error: function() {
> alert ( 'An error has occured. Your
> application could not be submitted.' );
> },
> complete: function() {
> $( '#CommercialVendorAddForm'
> ).unblock();
> }
> });
>
> return false;
> }
> );
> });
>
> I can't believe that there's not a way to force the error callback to
> receive the response if the server page returns an error, but what is that
> way?
>
> Thanks.
>
> Rob
[jQuery] Re: HowTo: Trigger error callback in ajax request
I think the problem is that you're expecting a different sort of error than
what the AJAX call is expecting. That method only looks for an error in what
it's trying to do. The server process is solely separated from the JS
process.
You could check for a string of "error" on success, then pass that over to
an error method.
andy
-Original Message-
From: jquery-en@googlegroups.com [mailto:jquery...@googlegroups.com] On
Behalf Of Rob Wilkerson
Sent: Wednesday, December 17, 2008 8:26 AM
To: jQuery (English)
Subject: [jQuery] HowTo: Trigger error callback in ajax request
I have an ajax request being sent to a PHP script. If that script captures
an error, I'd like it to echo that error and return whatever it needs to
return to trigger the error callback in my ajax call. I can't seem to find
what that is. Is it a non-200 status code? Simply throwing an error (throw
new Exception()) just triggers the success callback with the error text (not
unexpectedly, of course).
I'm using the jQuery form plugin and using the .ajaxSubmit() method, but I
suspect the answer would be the same for a core .ajax() call.
My simplified case looks like this:
$(document).ready ( function() {
$( '#CommercialVendorAddForm' ).submit (
function() {
$(this).block();
$(this).ajaxSubmit ({
beforeSubmit: function() {
alert ( 'validating' );
},
success: function ( responseText,
responseCode ) {
alert ( 'success' );
alert ( responseText );
},
error: function() {
alert ( 'An error has occured. Your
application could not be submitted.' );
},
complete: function() {
$( '#CommercialVendorAddForm'
).unblock();
}
});
return false;
}
);
});
I can't believe that there's not a way to force the error callback to
receive the response if the server page returns an error, but what is that
way?
Thanks.
Rob
[jQuery] Re: HowTo: Trigger error callback in ajax request
Have you tried 'throw' yet?
http://www.w3schools.com/js/js_throw.asp
andy
-Original Message-
From: jquery-en@googlegroups.com [mailto:jquery...@googlegroups.com] On
Behalf Of Rob Wilkerson
Sent: Wednesday, December 17, 2008 8:26 AM
To: jQuery (English)
Subject: [jQuery] HowTo: Trigger error callback in ajax request
I have an ajax request being sent to a PHP script. If that script captures
an error, I'd like it to echo that error and return whatever it needs to
return to trigger the error callback in my ajax call. I can't seem to find
what that is. Is it a non-200 status code? Simply throwing an error (throw
new Exception()) just triggers the success callback with the error text (not
unexpectedly, of course).
I'm using the jQuery form plugin and using the .ajaxSubmit() method, but I
suspect the answer would be the same for a core .ajax() call.
My simplified case looks like this:
$(document).ready ( function() {
$( '#CommercialVendorAddForm' ).submit (
function() {
$(this).block();
$(this).ajaxSubmit ({
beforeSubmit: function() {
alert ( 'validating' );
},
success: function ( responseText,
responseCode ) {
alert ( 'success' );
alert ( responseText );
},
error: function() {
alert ( 'An error has occured. Your
application could not be submitted.' );
},
complete: function() {
$( '#CommercialVendorAddForm'
).unblock();
}
});
return false;
}
);
});
I can't believe that there's not a way to force the error callback to
receive the response if the server page returns an error, but what is that
way?
Thanks.
Rob
