Issue #3278824: Passing in multiple types into a parameter breaks frontend controllers

src/Form/HttpConfigRequestForm.php

@@ -138,7 +138,7 @@ class HttpConfigRequestForm extends EntityForm {
         continue;
       }
 
-      $type = $param->getType();
+      $type = is_array($param->getType()) ? array_values($param->getType())[0] : $param->getType();
       switch ($type) {
         case 'bool':
         case 'boolean':
@@ -272,7 +272,7 @@ class HttpConfigRequestForm extends EntityForm {
 
     /** @var \GuzzleHttp\Command\Guzzle\Parameter $param */
     $param = $element['#command_param'];
-    $type = $param->getType();
+    $type = is_array($param->getType()) ? array_values($param->getType())[0] : $param->getType();
 
     switch ($type) {
       case 'array':
@@ -322,7 +322,8 @@ class HttpConfigRequestForm extends EntityForm {
 
       /** @var \GuzzleHttp\Command\Guzzle\Parameter $param */
       $param = $element['#command_param'];
-      $assoc = $param->getType() == 'array' ? JSON_OBJECT_AS_ARRAY : JSON_FORCE_OBJECT;
+      $type = is_array($param->getType()) ? array_values($param->getType())[0] : $param->getType();
+      $assoc = $type == 'array' ? JSON_OBJECT_AS_ARRAY : JSON_FORCE_OBJECT;
 
       $item = json_decode($input, $assoc);
       if (json_last_error() !== JSON_ERROR_NONE) {
@@ -357,7 +358,8 @@ class HttpConfigRequestForm extends EntityForm {
    *   A JSON String.
    */
   protected function getJsonHelp(Parameter $param) {
-    if ($param->getType() == 'array') {
+    $type = is_array($param->getType()) ? array_values($param->getType())[0] : $param->getType();
+    if ($type == 'array') {
       $properties = $param->getItems()->getProperties();
     }
     else {
@@ -366,7 +368,8 @@ class HttpConfigRequestForm extends EntityForm {
 
     $array = [];
     foreach ($properties as $name => $parameter) {
-      switch ($parameter->getType()) {
+      $parameter_type = is_array($parameter->getType()) ? array_values($parameter->getType())[0] : $parameter->getType();
+      switch ($parameter_type) {
         case 'string':
           $sample = 'Lorem ipsum...';
           break;
@@ -400,7 +403,7 @@ class HttpConfigRequestForm extends EntityForm {
       $array[$name] = $sample;
     }
 
-    if ($param->getType() == 'array') {
+    if ($type == 'array') {
       $array = [$array];
     }
     return json_encode($array, JSON_PRETTY_PRINT);