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

Author: SebastianWiz

gravity-forms/gw-require-unique-values.php

@@ -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 {
@@ -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 ) ) {
@@ -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 ) {
@@ -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 );