Display meta-fields in datatables (#1116)

src/Event/MetaDisplayEventInterface.php

@@ -0,0 +1,42 @@
+<?php
+
+/*
+ * This file is part of the Kimai time-tracking app.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace App\Event;
+
+use App\Entity\MetaTableTypeInterface;
+use App\Repository\Query\BaseQuery;
+
+interface MetaDisplayEventInterface
+{
+    /**
+     * If you want to filter where your meta-field will be displayed, use the query settings.
+     *
+     * @return BaseQuery
+     */
+    public function getQuery(): BaseQuery;
+
+    /**
+     * If you want to filter where your meta-field will be displayed, check the current location.
+     *
+     * @return string
+     */
+    public function getLocation(): string;
+
+    /**
+     * @return MetaTableTypeInterface[]
+     */
+    public function getFields(): array;
+
+    /**
+     * Adds a field that should be displayed.
+     *
+     * @param MetaTableTypeInterface $meta
+     */
+    public function addField(MetaTableTypeInterface $meta);
+}