Generate random string and validate unique

Archives Yii 1.0.x Discussions
1

I am wanting to generate a string and make sure its unique against a database attribute.

I know how to generate the random string like so;

In model;

By adding this to the rules() of the model be a success?

So as you can see I'm not 100% sure how to validate randomString against database properly. Any advise would be great.

2

For me, adding 'unique' to the rules is working very well.

Just what you have done is sufficient, i think.

3

Very nice if I have seen this few hours a go. I needed the same a cooked something here that goes to my globals.

function gfRandKey($minlength=12, $maxlength=12, $useupper=true, $usespecial=false, $usenumbers=true)

{

    $charset = "abcdefghijklmnopqrstuvwxyz";

    if ($useupper) $charset .= "ABCDEFGHIJKLMNOPQRSTUVWXYZ";

    if ($usenumbers) $charset .= "0123456789";

    if ($usespecial) $charset .= "~@#$%^*()_±={}|][";

    for ($i=0; $i<$maxlength; $i++) $key .= $charset[(mt_rand(0,(strlen($charset)-1)))];

    return $key;

}