Multisite Creation: 1 input for title and url

If it is being sent without, and you want to add the slash there, you can use this for your gform_pre_submission_filter:

[php]
add_filter("gform_pre_submission_filter", "add_a_slash");
function add_a_slash($form) {

    // add a slash before the information which was captured
    $_POST["input_1"] = "/" . $_POST["input_1"] ;

    // return modified form object
    return $form;
}

That would add a slash to the beginning of the string which was entered. But without seeing all your code and how you're using this, I can't be sure if this will work or see how it will work for both the site title and site address (slug.) Share more information if you need more help.

I would do this with two fields then. I would have a hidden or admin only field in the form, and take the information from input_1, add the slash, then assign it to input_2. Then use input_1 unmodified for the title, and input_2 for the URL.

Just change one line above (after you add the hidden field to your form, and if these are your field IDs):

// assign the value with the slash to another field
// I used field 2
$_POST["input_2"] = "/" . $_POST["input_1"] ;

Everything will be the same except the one line. The hidden field is just there so you have a place to store the modified value. Make sure the input_X numbers are correct.

That field should not be required. Did you mark it as such? It should be admin only and not required. It won't be filled in by the visitor. It's an empty spot for you to store a value after the visitor fills out the form.

Can you share a link to your form online please?

There seems to be an inconsistency in the documentation. The usage for the hook explained at the top of the page included 5 arguments being sent:

[php]
add_action("gform_site_created", "custom_user_validation", 10, 5);

$site_id
$user_id
$entry
$config
$password

The example at the bottom of the page shows just two, which is how you are using it. Can you try sending them all and see if it works then?

I will bring up the inconsistency in the documentation to the development team.

This line:

function modify_domain($site_id, $entry) {

Should have 5 arguments. Please see the edited documentation page for the arguments and their order: http://www.gravityhelp.com/documentation/page/Gform_site_created

function modify_domain
  ($site_id, $user_id, $entry, $config, $password) {

Let me bring this to the attention of the development team for their input. Thanks for your troubleshooting.

I heard back from one of the developers today. They were unable to duplicate the issue you're having. I have a later version of the User Registration add-on for you to try. Please email chris@rocketgenius.com and I will send it to you. Please reference this topic in your email.

If the new version does not work, we need you to do the following:

Check for theme and plugin conflicts using these instructions http://rkt.gs/testing

If nothing is found there, please remove any custom code you're using in functions.php and see if the site is created properly.

If none of that helps, we will need to take a closer look. But please try these things and report back with your findings. Thank you.