Move webhook to project notification type

app/Model/ProjectNotificationType.php

@@ -0,0 +1,57 @@
+<?php
+
+namespace Kanboard\Model;
+
+/**
+ * Project Notification Type
+ *
+ * @package  model
+ * @author   Frederic Guillot
+ */
+class ProjectNotificationType extends NotificationType
+{
+    /**
+     * SQL table name
+     *
+     * @var string
+     */
+    const TABLE = 'project_has_notification_types';
+
+    /**
+     * Get selected notification types for a given project
+     *
+     * @access public
+     * @param integer  $project_id
+     * @return array
+     */
+    public function getSelectedTypes($project_id)
+    {
+        $selectedTypes = $this->db
+            ->table(self::TABLE)
+            ->eq('project_id', $project_id)
+            ->asc('notification_type')
+            ->findAllByColumn('notification_type');
+
+        return array_merge($this->getHiddenTypes(), $selectedTypes);
+    }
+
+    /**
+     * Save notification types for a given project
+     *
+     * @access public
+     * @param  integer  $project_id
+     * @param  string[] $types
+     * @return boolean
+     */
+    public function saveSelectedTypes($project_id, array $types)
+    {
+        $results = array();
+        $this->db->table(self::TABLE)->eq('project_id', $project_id)->remove();
+
+        foreach ($types as $type) {
+            $results[] = $this->db->table(self::TABLE)->insert(array('project_id' => $project_id, 'notification_type' => $type));
+        }
+
+        return ! in_array(false, $results);
+    }
+}