New table "post-user" and more foreign keys

src/Model/Post/User.php

@@ -0,0 +1,92 @@
+<?php
+/**
+ * @copyright Copyright (C) 2020, Friendica
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program 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 Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace Friendica\Model\Post;
+
+use Friendica\Database\DBA;
+use \BadMethodCallException;
+use Friendica\Core\Logger;
+use Friendica\Database\DBStructure;
+
+class User
+{
+	/**
+	 * Insert a new URI user entry
+	 *
+	 * @param integer $uri_id
+	 * @param integer $uid
+	 * @param array   $fields
+	 * @return bool
+	 * @throws \Exception
+	 */
+	public static function insert(int $uri_id, int $uid, array $data = [])
+	{
+		if (empty($uri_id)) {
+			throw new BadMethodCallException('Empty URI_id');
+		}
+
+		if (DBA::exists('post-user', ['uri-id' => $uri_id, 'uid' => $uid])) {
+			return false;
+		}
+
+		$fields = DBStructure::getFieldsForTable('post-user', $data);
+
+		// Additionally assign the key fields
+		$fields['uri-id'] = $uri_id;
+		$fields['uid'] = $uid;
+
+		// Public posts are always seen
+		if ($uid == 0) {
+			$fields['unseen'] = false;
+		}
+
+		return DBA::insert('post-user', $fields);
+	}
+
+	/**
+	 * Update a URI user entry
+	 *
+	 * @param integer $uri_id
+	 * @param integer $uid
+	 * @param array   $fields
+	 * @return bool
+	 * @throws \Exception
+	 */
+	public static function update(int $uri_id, int $uid, array $data = [])
+	{
+		if (empty($uri_id)) {
+			throw new BadMethodCallException('Empty URI_id');
+		}
+
+		$fields = DBStructure::getFieldsForTable('post-user', $data);
+
+		// Remove the key fields
+		unset($fields['uri-id']);
+		unset($fields['uid']);
+
+		if (empty($fields)) {
+			return true;
+		}
+
+Logger::info('Blubb-Update', ['uri-id' => $uri_id, 'uid' => $uid, 'fields' => $fields]);
+		return DBA::update('post-user', $fields, ['uri-id' => $uri_id, 'uid' => $uid], true);
+	}
+}