SharePoint API: support for multi lookup field value

examples/SharePoint/ListItems/SetLookupFieldValue.php

@@ -7,6 +7,8 @@
 use Office365\Runtime\Auth\ClientCredential;
 use Office365\SharePoint\ClientContext;
 use Office365\SharePoint\FieldLookupValue;
+use Office365\SharePoint\FieldMultiLookupValue;
+use Office365\SharePoint\FieldUserValue;
 use Office365\SharePoint\ListItem;
 
 $credentials = new ClientCredential($settings['ClientId'], $settings['ClientSecret']);
@@ -20,8 +22,12 @@
     return;
 }
 $taskId = $items[0]->getProperty("Id");
+$me = $ctx->getWeb()->getCurrentUser()->get()->executeQuery();
+
 $taskProps = array(
     'Title' => "New task N#" . rand(1, 100000),
-    'ParentTask' => new FieldLookupValue($taskId)
+    'ParentTask' => new FieldLookupValue($taskId),
+    'PrimaryManager' => new FieldUserValue($me->getId()),
+    'Managers' => new FieldMultiLookupValue([$me->getId()])
 );
 $item = $list->addItem($taskProps)->executeQuery();

src/SharePoint/FieldLookupValue.php

@@ -29,4 +29,6 @@ public function __construct($LookupId)
      */
     public $LookupValue;
 
-}
+}
+
+

src/SharePoint/FieldMultiLookupValue.php

@@ -0,0 +1,26 @@
+<?php
+
+namespace Office365\SharePoint;
+
+use Office365\Runtime\ClientValueCollection;
+
+class FieldMultiLookupValue extends ClientValueCollection
+{
+    public function __construct($lookupIds)
+    {
+        parent::__construct(FieldLookupValue::class);
+        foreach ($lookupIds as $lookupId) {
+            $this->addChild(new FieldLookupValue($lookupId));
+        }
+    }
+
+
+    public function toJson()
+    {
+        $lookupIds = array_map(function (FieldLookupValue $value) {
+            return $value->LookupId;
+        }, $this->getData());
+        return array('results' => $lookupIds);
+    }
+
+}

src/SharePoint/FieldUserValue.php

@@ -10,5 +10,20 @@
 
 class FieldUserValue extends FieldLookupValue
 {
+
+    /**
+     * Initialize field value from User
+     * @param User $user
+     * @return FieldUserValue
+     */
+    public static function fromUser($user){
+        $value = new FieldUserValue(-1);
+        $user->ensureProperty("Id",function () use($value, $user){
+            $value->LookupId = $user->getId();
+        });
+        return $value;
+    }
+
+
     public $Email;
 }

src/SharePoint/ListItem.php

@@ -430,12 +430,18 @@ public function getServerTypeName()
 
     public function setProperty($name, $value, $persistChanges = true)
     {
-        if($value instanceof FieldLookupValue){
+        if ($value instanceof  FieldMultiLookupValue){
+            parent::setProperty("{$name}Id", $value, true);
+            parent::setProperty($name, $value, false);
+        }
+        elseif($value instanceof FieldLookupValue){
             parent::setProperty("{$name}Id", $value->LookupId, true);
             parent::setProperty($name, $value, false);
-            return $this;
         }
-        return parent::setProperty($name, $value, $persistChanges);
+        else{
+            parent::setProperty($name, $value, $persistChanges);
+        }
+        return $this;
     }
 
     /**