Create unique identifier that is displayed to the user and admin via Ninja Forms

Question

Create unique identifier that is displayed to the user and admin via Ninja Forms

Tom Hutchison

2017年4月22日 00:51

I'm trying to source documentation on how to create a unique identifier that can be displayed to the user after form submission and to the admin that also receives the submission.

User submits form
User receives confirmation email with "Your code is 2290"
Admin receives form confirmation "User has signed up with order X and code 2290"

I've found a way to grab sequential numbering from the order of submission but it needs to be a unique code to that specific user

The only thing I thought would be to add some sort of relay of their IP and name

Something like Hashids can convert their IP into a small unique identifier but I'm really unsure how to implement something this complex and would need something simple that I've overlooked that ninja forms allows/provides

Topic plugin-ninja-forms plugins Wordpress

Category Web

Frank P. Walentynowicz · Accepted Answer · 2017年4月22日 00:51

Put this code into theme's functions.php: ( for Ninja Forms 2.9.x )

function unique_code_submission( $data, $field_id ) {
    global $uniqueCode;

    if ( "string" !== gettype( $uniqueCode ) )
        $uniqueCode = uniqid();

    /* here goes your code to populate a field */

    return $data;
}
add_filter( 'ninja_forms_field', 'unique_code_submission', 10, 2 );

Within above function you will have a unique, 13 characters long code in $uniqueCode global variable. This code will be generated once only, when the filter is triggered first time. More information about ninja_forms_fieldfilter: here.

UPDATE: for Ninja Forms 3.0 and up:

function unique_code_submission( $fields ) {
    $uniqueCode = uniqid();

    /*  here goes your code to populate a field. For example:
        let's populate hidden field, which has key value of
        'hidden_1492812363939' */

    $index = 0;
    while ( 0 <= $index ) {
        ++$index;
        if ( 'hidden_1492812363939' == $fields[ $index-1 ][ 'key' ] ) {
            $fields[ $index-1 ][ 'value' ] = $uniqueCode;
            $index = -1;
        }
    }

    return $fields;
}
add_filter( 'ninja_forms_display_fields', 'unique_code_submission', 10, 1 );

Create unique identifier that is displayed to the user and admin via Ninja Forms

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