1 files changed, 99 insertions, 0 deletions
diff --git a/lib/Model/AttachmentMapper.php b/lib/Model/AttachmentMapper.php
new file mode 100644
index 000000000..484239483
--- /dev/null
+++ b/lib/Model/AttachmentMapper.php
@@ -0,0 +1,99 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * @copyright Copyright (c) 2022 Joas Schilling <coding@schilljs.com>
+ *
+ * @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 <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCA\Talk\Model;
+
+use OCP\AppFramework\Db\QBMapper;
+use OCP\AppFramework\Db\TTransactional;
+use OCP\DB\QueryBuilder\IQueryBuilder;
+use OCP\IDBConnection;
+
+/**
+ * @method Attachment mapRowToEntity(array $row)
+ * @method Attachment findEntity(IQueryBuilder $query)
+ * @method Attachment[] findEntities(IQueryBuilder $query)
+ */
+class AttachmentMapper extends QBMapper {
+	use TTransactional;
+
+	/**
+	 * @param IDBConnection $db
+	 */
+	public function __construct(IDBConnection $db) {
+		parent::__construct($db, 'talk_attachments', Attachment::class);
+	}
+
+	public function createAttachmentFromRow(array $row): Attachment {
+		return $this->mapRowToEntity([
+			'id' => (int) $row['id'],
+			'room_id' => (int) $row['room_id'],
+			'message_id' => (int) $row['message_id'],
+			'message_time' => (int) $row['message_time'],
+			'object_type' => (string) $row['object_type'],
+			'actor_type' => (string) $row['actor_type'],
+			'actor_id' => (string) $row['actor_id'],
+		]);
+	}
+
+	/**
+	 * @param int $roomId
+	 * @param string $objectType
+	 * @param int $offset
+	 * @param int $limit
+	 * @return Attachment[]
+	 * @throws \OCP\DB\Exception
+	 */
+	public function getAttachmentsByType(int $roomId, string $objectType, int $offset, int $limit): array {
+		$query = $this->db->getQueryBuilder();
+		$query->select('*')
+			->from($this->getTableName())
+			->where($query->expr()->eq('room_id', $query->createNamedParameter($roomId, IQueryBuilder::PARAM_INT)))
+			->andWhere($query->expr()->eq('object_type', $query->createNamedParameter($objectType)))
+			->setMaxResults($limit)
+			->orderBy('id', 'DESC');
+
+		if ($offset > 0) {
+			$query->andWhere($query->expr()->lt('message_id', $query->createNamedParameter($offset)));
+		}
+
+		return $this->findEntities($query);
+	}
+
+	public function deleteByMessageId(int $messageId): void {
+		$query = $this->db->getQueryBuilder();
+		$query->delete($this->getTableName())
+			->where($query->expr()->eq('message_id', $query->createNamedParameter($messageId, IQueryBuilder::PARAM_INT)));
+
+		$query->executeStatement();
+	}
+
+	public function deleteByRoomId(int $roomId): void {
+		$query = $this->db->getQueryBuilder();
+		$query->delete($this->getTableName())
+			->where($query->expr()->eq('room_id', $query->createNamedParameter($roomId, IQueryBuilder::PARAM_INT)));
+
+		$this->atomic(static function () use ($query) {
+			$query->executeStatement();
+		}, $this->db);
+	}
+}