Implements #9617. a) formModeGlobal=requiredShowOnly set's the form attribute....

Implements #9617. a) formModeGlobal=requiredShowOnly set's the form attribute. The new STORE_VAR 'allRequiredGiven' is set

extension/Classes/Core/BuildFormBootstrap.php

@@ -593,6 +593,10 @@ class BuildFormBootstrap extends AbstractBuildForm {
 
         $attribute['class'] = 'form-horizontal';
         $attribute['data-toggle'] = 'validator';
+
+        if ($this->store::getVar(F_MODE_GLOBAL, STORE_SIP) == F_MODE_REQUIRED_SHOW_ONLY) {
+            $attribute['data-required-show-only'] = 'true';
+        }
         if (isset($this->formSpec[F_SAVE_BUTTON_ACTIVE]) && $this->formSpec[F_SAVE_BUTTON_ACTIVE] != '0') {
             $attribute[DATA_ENABLE_SAVE_BUTTON] = 'true';
         }

extension/Classes/Core/Constants.php

@@ -723,6 +723,7 @@ const VAR_FILENAME_BASE = 'filenameBase'; // Original filename of an uploaded fi
 const VAR_FILENAME_EXT = 'filenameExt'; // Extension of the original filename of an uploaded file, .
 const VAR_FILE_MIME_TYPE = 'mimeType';
 const VAR_FILE_SIZE = 'fileSize';
+const VAR_ALL_REQUIRED_GIVEN = 'allRequiredGiven'; // 0 if at least one FE is required and value is missing, else 1.
 
 
 // PHP class Typeahead
@@ -1008,6 +1009,7 @@ const F_TYPEAHEAD_LDAP_SEARCH_PER_TOKEN = 'typeAheadLdapSearchPerToken';
 const F_MODE = 'mode';
 const F_MODE_READONLY = 'readonly';
 const F_MODE_REQUIRED_OFF = 'requiredOff';
+const F_MODE_REQUIRED_SHOW_ONLY = 'requiredShowOnly';
 const F_MODE_GLOBAL = 'formModeGlobal';
 
 const F_SAVE_BUTTON_ACTIVE = 'saveButtonActive';

extension/Classes/Core/Save.php

@@ -544,10 +544,13 @@ class Save {
      */
     public function checkRequiredHidden() {
 
-        $requiredOff = ($this->store->getVar(F_MODE_GLOBAL, STORE_SIP) == F_MODE_REQUIRED_OFF);
+        $formModeGlobal = $this->store->getVar(F_MODE_GLOBAL, STORE_SIP);
+        $reportRequiredFailed = ($formModeGlobal != F_MODE_REQUIRED_OFF && $formModeGlobal != F_MODE_REQUIRED_SHOW_ONLY);
 
         $clientValues = $this->store::getStore(STORE_FORM);
 
+        $flagAllRequiredGiven = 1;
+
         foreach ($this->feSpecNative AS $key => $formElement) {
 
             // Do not check retype slave FE.
@@ -569,8 +572,11 @@ class Save {
                 $mode = 'fake'; // The next if() should never be true.
             }
 
-            if (!$requiredOff && $mode == FE_MODE_REQUIRED && empty($clientValues[$formElement[FE_NAME]])) {
-                throw new \UserFormException("Missing required value: " . $formElement[FE_LABEL], ERROR_REQUIRED_VALUE_EMPTY);
+            if ($mode == FE_MODE_REQUIRED && empty($clientValues[$formElement[FE_NAME]])) {
+                $flagAllRequiredGiven = 0;
+                if ($reportRequiredFailed) {
+                    throw new \UserFormException("Missing required value: " . $formElement[FE_LABEL], ERROR_REQUIRED_VALUE_EMPTY);
+                }
             }
 
             if ($mode == FE_MODE_HIDDEN) {
@@ -578,6 +584,9 @@ class Save {
                 $this->store::unsetVar($formElement[FE_NAME], STORE_FORM);
             }
         }
+
+        // Save 'allRequiredGiven in STORE_VAR
+        $this->store::setVar(VAR_ALL_REQUIRED_GIVEN, $flagAllRequiredGiven, STORE_VAR, true);
     }
 
     /**