Improve user controllers and views

app/Controller/UserAjaxController.php

@@ -0,0 +1,52 @@
+<?php
+
+namespace Kanboard\Controller;
+
+use Kanboard\Filter\UserNameFilter;
+use Kanboard\Formatter\UserAutoCompleteFormatter;
+use Kanboard\Model\User as UserModel;
+
+/**
+ * User Ajax Controller
+ *
+ * @package  Kanboard\Controller
+ * @author   Frederic Guillot
+ */
+class UserAjaxController extends BaseController
+{
+    /**
+     * User auto-completion (Ajax)
+     *
+     * @access public
+     */
+    public function autocomplete()
+    {
+        $search = $this->request->getStringParam('term');
+        $filter = $this->userQuery->withFilter(new UserNameFilter($search));
+        $filter->getQuery()->asc(UserModel::TABLE.'.name')->asc(UserModel::TABLE.'.username');
+        $this->response->json($filter->format(new UserAutoCompleteFormatter($this->container)));
+    }
+
+    /**
+     * User mention auto-completion (Ajax)
+     *
+     * @access public
+     */
+    public function mention()
+    {
+        $project_id = $this->request->getStringParam('project_id');
+        $query = $this->request->getStringParam('q');
+        $users = $this->projectPermission->findUsernames($project_id, $query);
+        $this->response->json($users);
+    }
+
+    /**
+     * Check if the user is connected
+     *
+     * @access public
+     */
+    public function status()
+    {
+        $this->response->text('OK');
+    }
+}