N°3190 - Edit n:n LinkedSetIndirect in object details using a tagset-like widget

- Add generic set block ui component
- Add model link set (direct and indirect) attribute (display style)
- Add model link set direct allowed values
- Create link set viewer block UI (BlockLinksSetDisplayAsProperty)
- Add set block ui factory for linkset
- Add object factory and create new endpoint in object controller (with data binder)
- Add link set model, link set repository and link set data transformer services

sources/Service/Links/LinkSetModel.php

@@ -0,0 +1,75 @@
+<?php
+/*
+ * @copyright   Copyright (C) 2010-2022 Combodo SARL
+ * @license     http://opensource.org/licenses/AGPL-3.0
+ */
+
+namespace Combodo\iTop\Service\Links;
+
+use AttributeExternalKey;
+use AttributeLinkedSet;
+use AttributeLinkedSetIndirect;
+use Exception;
+use MetaModel;
+
+/**
+ * Class LinkSetModel
+ *
+ * @internal
+ * @since 3.1.0
+ * @package Combodo\iTop\Service\Links
+ */
+class LinkSetModel
+{
+	/**
+	 * GetTargetClass.
+	 *
+	 * @param AttributeLinkedSet $oAttDef
+	 *
+	 * @return string
+	 */
+	static public function GetTargetClass(AttributeLinkedSet $oAttDef): string
+	{
+		try {
+			if ($oAttDef instanceof AttributeLinkedSetIndirect) {
+				/** @var AttributeExternalKey $oLinkingAttDef */
+				$oLinkingAttDef = MetaModel::GetAttributeDef($oAttDef->GetLinkedClass(), $oAttDef->GetExtKeyToRemote());
+
+				return $oLinkingAttDef->GetTargetClass();
+			} else {
+				return $oAttDef->GetLinkedClass();
+			}
+		}
+		catch (Exception $e) {
+			return 'unknown';
+		}
+	}
+
+	/**
+	 * GetLinkedClass.
+	 *
+	 * @param AttributeLinkedSet $oAttDef
+	 *
+	 * @return string
+	 */
+	static public function GetLinkedClass(AttributeLinkedSet $oAttDef): string
+	{
+		return $oAttDef->GetLinkedClass();
+	}
+
+	/**
+	 * GetTargetField.
+	 *
+	 * @param AttributeLinkedSet $oAttDef
+	 *
+	 * @return string|null
+	 */
+	static public function GetTargetField(AttributeLinkedSet $oAttDef): ?string
+	{
+		if ($oAttDef instanceof AttributeLinkedSetIndirect) {
+			return $oAttDef->GetExtKeyToRemote();
+		} else {
+			return null;
+		}
+	}
+}