feat: change id value for map entity to be also nullable

Author: marco.bernardi

lib/Model/EntityMapping.php

@@ -58,7 +58,7 @@ class EntityMapping implements ModelInterface, ArrayAccess, \JsonSerializable
       * @var string[]
       */
     protected static $openAPITypes = [
-        'id' => 'string'
+        'id' => 'string|null'
     ];
 
     /**
@@ -78,7 +78,7 @@ class EntityMapping implements ModelInterface, ArrayAccess, \JsonSerializable
       * @var boolean[]
       */
     protected static array $openAPINullables = [
-        'id' => false
+        'id' => true
     ];
 
     /**
@@ -275,9 +275,6 @@ public function listInvalidProperties()
     {
         $invalidProperties = [];
 
-        if ($this->container['id'] === null) {
-            $invalidProperties[] = "'id' can't be null";
-        }
         return $invalidProperties;
     }
 
@@ -310,10 +307,24 @@ public function getId()
      *
      * @return self
      */
+    /**
+     * Sets id
+     *
+     * @param string|null $id id
+     *
+     * @return self
+     */
     public function setId($id)
     {
         if (is_null($id)) {
-            throw new \InvalidArgumentException('non-nullable id cannot be null');
+            array_push($this->openAPINullablesSetToNull, 'id');
+        } else {
+            $nullablesSetToNull = $this->getOpenAPINullablesSetToNull();
+            $index = array_search('id', $nullablesSetToNull);
+            if ($index !== FALSE) {
+                unset($nullablesSetToNull[$index]);
+                $this->setOpenAPINullablesSetToNull($nullablesSetToNull);
+            }
         }
         $this->container['id'] = $id;