From e3aff78e89f80882bd27a5785ef768ff80a79b53 Mon Sep 17 00:00:00 2001
From: Yuri Kuznetsov <yurikuzn@users.noreply.github.com>
Date: Thu, 19 May 2022 10:19:08 +0300
Subject: [PATCH] link manager hook assigned users

---
 .../Resources/metadata/app/linkManager.json   |   3 +-
 .../Link/Hooks/AssignedUsersCreate.php        | 101 ++++++++++++++++++
 2 files changed, 103 insertions(+), 1 deletion(-)
 create mode 100644 application/Espo/Tools/EntityManager/Link/Hooks/AssignedUsersCreate.php

diff --git a/application/Espo/Resources/metadata/app/linkManager.json b/application/Espo/Resources/metadata/app/linkManager.json
index 49abc8705e..9bf2b5a21d 100644
--- a/application/Espo/Resources/metadata/app/linkManager.json
+++ b/application/Espo/Resources/metadata/app/linkManager.json
@@ -1,6 +1,7 @@
 {
     "createHookClassNameList": [
-        "Espo\\Tools\\EntityManager\\Link\\Hooks\\TargetListCreate"
+        "Espo\\Tools\\EntityManager\\Link\\Hooks\\TargetListCreate",
+        "Espo\\Tools\\EntityManager\\Link\\Hooks\\AssignedUsersCreate"
     ],
     "deleteHookClassNameList": [
         "Espo\\Tools\\EntityManager\\Link\\Hooks\\TargetListDelete",
diff --git a/application/Espo/Tools/EntityManager/Link/Hooks/AssignedUsersCreate.php b/application/Espo/Tools/EntityManager/Link/Hooks/AssignedUsersCreate.php
new file mode 100644
index 0000000000..744f2a62e0
--- /dev/null
+++ b/application/Espo/Tools/EntityManager/Link/Hooks/AssignedUsersCreate.php
@@ -0,0 +1,101 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM - Open Source CRM application.
+ * Copyright (C) 2014-2022 Yurii Kuznietsov, Taras Machyshyn, Oleksii Avramenko
+ * Website: https://www.espocrm.com
+ *
+ * EspoCRM is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * EspoCRM is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with EspoCRM. If not, see http://www.gnu.org/licenses/.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Tools\EntityManager\Link\Hooks;
+
+use Espo\Tools\EntityManager\Link\CreateHook;
+use Espo\Tools\EntityManager\Link\Params;
+use Espo\Tools\EntityManager\Link\Type;
+
+use Espo\Core\Utils\Metadata;
+
+use Espo\Entities\User;
+
+class AssignedUsersCreate implements CreateHook
+{
+    private const LINK_NAME = 'assignedUsers';
+
+    private Metadata $metadata;
+
+    public function __construct(Metadata $metadata)
+    {
+        $this->metadata = $metadata;
+    }
+
+    public function process(Params $params): void
+    {
+        if ($params->getType() !== Type::MANY_TO_MANY) {
+            return;
+        }
+
+        $foreignEntityType = $params->getForeignEntityType();
+        $entityType = $params->getEntityType();
+
+        if (!$foreignEntityType || !$entityType) {
+            return;
+        }
+
+        if (
+            $params->getEntityType() === User::ENTITY_TYPE &&
+            $params->getForeignLink() === self::LINK_NAME
+        ) {
+            $this->processInternal($foreignEntityType);
+
+            return;
+        }
+
+        if (
+            $params->getForeignEntityType() === User::ENTITY_TYPE &&
+            $params->getLink() === self::LINK_NAME
+        ) {
+            $this->processInternal($entityType);
+
+            return;
+        }
+    }
+
+    private function processInternal(string $entityType): void
+    {
+        $fieldType = $this->metadata->get(['entityDefs', $entityType, 'fields', self::LINK_NAME, 'type']);
+
+        if ($fieldType !== 'linkMultiple') {
+            return;
+        }
+
+        $this->metadata->set('entityDefs', $entityType, [
+            'fields' => [
+                self::LINK_NAME => [
+                    'view' => 'views/fields/assigned-users',
+                ],
+            ]
+        ]);
+
+        $this->metadata->save();
+    }
+}