Script to validate all form fields for null in one quick call

[oh4real]

Hello all,

I am very new to coding and even newer to Javascript. My brain works by thinking in general/abstract all the time and I am lazy, so I hate doing anything remotely repetitious. In that vein, I wrote this script to chuck through a form, any form and check for nulls where there shouldn't be. I used alerts to notify, but you could just as easily add a red error tag and focus() back. All you have to do is add informative and readable titles to fields you want null-validated. And add this to your onsubmit="return validation();" line. All hidden or button or submit, etc. inputs are ignored if you don't add a title to them.

function nullValidation() {
    var x = document.getElementById("myForm");
 
    for (var i = 0; i < x.length; i++) {
        if(x.elements[i].value == "" && x.elements[i].title) {
            alert("Please enter or select " + x.elements[i].title + ".");
            x.elements[i].focus();
            return false;
        }
    }
 
    return true;
}
 

again, i am not a coder, but this simple script has saved me much, much time on new site i am building with about 20 different forms on it for getting/updating data to mysql.

regards,
oh4real

[acoder]

Thanks for sharing!

I've moved this to the Articles section, since it's not a problem, but a solution.

I've added code tags for you (makes it much easier to read).

[letmeknow]

thanks it really saves a lot of time in formvalidation.
Thank you

[FullyH3ktik]

Yes, thanks for sharing, it does save a lot of time compared to what I had

[oh4real]

Glad to help! I am King of generic.

Here was another time saver for PHP/MySQL:

If you ever get form submission which needs to update multiple fields in multiple tables like in a user profile, use this script that finds any fields that have changed, and then rips through to MySQL and UPDATES only those fields. I wrote this to go one field at a time, no compound UPDATE statements, since the hassle of gathering all fields from one table would cut down on SQL queries, but got complex on PHP side.

I use this PHP as an object method (one in account.class.php and one in user.class.php), so admins, users, FBI, NSA, anyone who wants to can use it.

http://www.thescripts.com/forum/thread666660.html

oh4real