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gw-require-unique-values.php: Added support for whole-field validation for multi-input fields. #1140

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merged 2 commits into from
Aug 8, 2025
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gw-require-unique-values.php: Added support for whole-field validation for multi-input fields. #1140

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f507348
`gw-require-unique-values.php`: Added support for whole-field validat…
SebastianWiz Aug 6, 2025
961fa3a
`gw-require-unique-values.php`: Added support for whole-field validat…
SebastianWiz Aug 7, 2025
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27 changes: 25 additions & 2 deletions gravity-forms/gw-require-unique-values.php
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Original file line number Diff line number Diff line change
Expand Up @@ -11,7 +11,7 @@
* Plugin URI: https://gravitywiz.com/gravity-forms-require-unique-values-for-different-fields/
* Description: Require two or more fields on the same form to be different from each other.
* Author: Gravity Wiz
* Version: 0.2
* Version: 0.3
* Author URI: https://gravitywiz.com/
*/
class GW_Require_Unique_Values {
Expand Down Expand Up @@ -52,6 +52,10 @@ public function init() {
add_filter( sprintf( 'gform_field_validation_%s', $this->_args['form_id'] ), array( $this, 'validate' ), 10, 4 );
}

private function get_all_field_ids() {
return array_merge( $this->_args['field_ids'], array( $this->_args['master_field_id'] ) );
}

public function validate( $result, $value, $form, $field ) {

if ( ! $this->is_applicable_field( $field ) ) {
Expand Down Expand Up @@ -83,8 +87,12 @@ public function validate( $result, $value, $form, $field ) {
} else {
$values = $this->get_group_values( $form, $field->id );

// Check if this should be validated as whole field
$all_field_ids = $this->get_all_field_ids();
$validate_as_whole = in_array( $field->id, $all_field_ids );

// If the field has inputs, let's loop through them and check if they are unique.
if ( is_array( $field->inputs ) && ! empty( $field->inputs ) ) {
if ( is_array( $field->inputs ) && ! empty( $field->inputs ) && ! $validate_as_whole ) {
$is_unique = true;

foreach ( $field->inputs as $input ) {
Expand Down Expand Up @@ -194,6 +202,21 @@ public function get_filtered_value( $field, $input_id = null ) {
$value = $value[ $input_id ];
}

// When using a field ID (not input ID) for multi-input fields, combine all subfield values into one for validation.
if ( ! $input_id && is_array( $field->inputs ) && is_array( $value ) ) {
$all_field_ids = $this->get_all_field_ids();
if ( in_array( $field->id, $all_field_ids ) ) {
$combined_parts = array();
foreach ( $field->inputs as $input ) {
$input_value = rgar( $value, $input['id'] );
if ( ! empty( $input_value ) ) {
$combined_parts[] = $input_value;
}
}
$value = array( implode( ' ', $combined_parts ) );
}
}

$value = ! is_array( $value ) ? array( $value ) : $value;
$value = array_filter( $value );

Expand Down
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