Foren / Craftwork / Server-side / Error handling with Ajax and PHP

Twiebie
#1 17. August 2013, 14:51

Team

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74 mal

I'm wondering what in Cotonti the best way is to handle errors with an Ajax submitted form to a PHP file.

Normally with a simple form the errors can be handled with Cotonti's cot_error(); function like this:

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cot_error('someErrorMessage', '');
cot_redirect(cot_url('myPlug', 'm=form', '', true));

How would you guys handle something like this if the form is submitted with Ajax?
Trustmaster
#2 17. August 2013, 18:00

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265 mal

Here is an example trick that I use:

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if ($_SERVER['REQUEST_METHOD'] == 'POST')
{
    $rpost = post_import();
    if (post_validate($rpost, $_POST['name']))
    {
        post_send($rpost);
        $response = array(
            'status'  => true,
            'message' => $L['post_message_sent']
        );
    }
    else
    {
        // Return error messages
        $error_fields = array();
        $error_messages = array();
        foreach ($_SESSION['cot_messages'][$sys['site_id']] as $src => $grp)
        {
            $error_fields[] = $src;
            foreach ($grp as $msg)
            {
                $error_messages[] = isset($L[$msg['text']]) ? $L[$msg['text']] : $msg['text'];
            }
        }
        $response = array(
            'status'         => false,
            'error_fields'   => $error_fields,
            'error_messages' => $error_messages
        );
        cot_clear_messages();
    }
 
    cot_sendheaders('application/json', '200 OK');
 
    echo json_encode($response);
}

 

May the Source be with you!
Thanked: Twiebie (17. August 2013)
Twiebie
#3 18. August 2013, 00:33

Team

Thanked:
74 mal

Thanks, Trustmaster! Looks like I sort of was on the right track with my JSON response effort.

I'm guessing you are using this with success: function() {}, as you return 200 regardless?
Trustmaster
#4 18. August 2013, 06:25

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Yes, I check the status and error messages in success function.

May the Source be with you!
Twiebie
#5 18. August 2013, 10:05

Team

Thanked:
74 mal

OK, got it.

Thanks!