Home › Forums › Front-end Issues › Accept only unique values › Reply To: Accept only unique values
validating a row against other rows is a little different. For this you need to look at the other values in $_POST[‘acf’] and you’ll need to use the field keys.
So, let’s for this example say that the field key of the repeater is field_1111
and the field key of the text field is field_2222
add_filter('acf/validate_value/key=field_2222', 'acf_unique_repeater_sub_field', 10, 4);
function acf_unique_repeater_sub_field($valid, $value, $field, $input) {
// set up an array to hold all submitted values for rows
$list = array();
foreach ($_POST['acf']['field_1111'] as $row) {
if (in_array($row['field_2222'], $list)) {
// this one already exists
$valid = 'There are duplicate '.$field['name'].' values';
// found a duplicate so we don't need to continue looping
break;
}
// add the value of this row to the list
$list[] = $row['field_2222'];
}
return $valid;
}
Welcome to the Advanced Custom Fields community forum.
Browse through ideas, snippets of code, questions and answers between fellow ACF users
Helping others is a great way to earn karma, gain badges and help ACF development!
We’re working hard on Advanced Custom Fields PRO 6.0, and Beta 1 is now available 🚀
— Advanced Custom Fields (@wp_acf) August 12, 2022
Featuring improved performance for Repeater fields with large datasets, and a new generation of ACF Blocks.
Let’s take a look 🧵https://t.co/Befre3kFAo
© 2022 Advanced Custom Fields.
We use cookies to offer you a better browsing experience, analyze site traffic and personalize content. Read about how we use cookies and how you can control them in our Cookie Policy. If you continue to use this site, you consent to our use of cookies.