✨ Hide admin custom fields pre-filled from returning visitors when 'uempty' show condition is set

- In lhchatvalidator.php, skip processing admin custom fields during chat validation if the 'showcondition' is 'uempty' and the visitor already has a non-default nickname set
- In onlinesettings.php, update the identifier_prefill for fields with 'uempty' showcondition to use 'Username' instead of the field's own identifier, ensuring the frontend correctly evaluates whether to show the field

Author: remdex

lhc_web/lib/core/lhchat/lhchatvalidator.php

@@ -736,7 +736,11 @@ public static function validateStartChat(& $inputForm, & $start_data_fields, & $
             if (is_array($customAdminfields)) {
 
                 foreach ($customAdminfields as $key => $adminField) {
-                   
+
+                    if (isset($adminField['showcondition']) && $adminField['showcondition'] === 'uempty' && $chat->nick !== 'Visitor' && !empty($chat->nick)) {
+                        continue;
+                    }
+
                     $fieldName = self::extractFieldName($adminField);
 
                     if (

lhc_web/modules/lhwidgetrestapi/onlinesettings.php

@@ -639,7 +639,7 @@ function getValueFromPrefillOrLocation(erLhcoreClassModelChat $chatPrefill,  str
                     'required' => $adminField['isrequired'] == 'true',
                     'name' => 'value_items_admin_'. $key,
                     'identifier' => 'value_items_admin_' . $key,
-                    'identifier_prefill' => $adminField['fieldidentifier'],
+                    'identifier_prefill' => (isset($adminField['showcondition']) && $adminField['showcondition'] === 'uempty' ? 'Username' : $adminField['fieldidentifier']),
                     'hide_prefilled' => ((isset($adminField['hide_prefilled']) && $adminField['hide_prefilled'] == true) ? true : false),
                     'value' => $adminField['defaultvalue'],
                     'priority' => ((isset($adminField['priority']) && is_numeric($adminField['priority'])) ? (int)$adminField['priority'] : 200)