[StreamChatPersistence] Add initial implementation

Signed-off-by: Sahil Kumar <[email protected]>
2021-01-25 19:14:55 +05:30
parent 1021814a75
commit 657b58af8b
47 changed files with 1878 additions and 1 deletions
@@ -0,0 +1,42 @@
+import 'package:moor/moor.dart';
+import 'package:stream_chat/stream_chat.dart';
+import 'package:stream_chat_persistence/src/db/moor_chat_database.dart';
+import 'package:stream_chat_persistence/src/entity/reads.dart';
+import 'package:stream_chat_persistence/src/entity/users.dart';
+import '../mapper/mapper.dart';
+
+part 'read_dao.g.dart';
+
+///
+@UseDao(tables: [Reads, Users])
+class ReadDao extends DatabaseAccessor<MoorChatDatabase> with _$ReadDaoMixin {
+  ///
+  ReadDao(MoorChatDatabase db) : super(db);
+
+  /// Get all reads where [reads.channelCid] matches [cid]
+  Future<List<Read>> getReadsByCid(String cid) async {
+    return (select(reads).join([
+      leftOuterJoin(users, reads.userId.equalsExp(users.id)),
+    ])
+          ..where(reads.channelCid.equals(cid))
+          ..orderBy([
+            OrderingTerm.asc(reads.lastRead),
+          ]))
+        .map((row) {
+      final userEntity = row.readTable(users);
+      final readEntity = row.readTable(reads);
+      return readEntity.toRead(user: userEntity?.toUser());
+    }).get();
+  }
+
+  ///
+  Future<void> updateReads(String cid, List<Read> readList) {
+    return batch(
+      (it) => it.insertAll(
+        reads,
+        readList.map((r) => r.toEntity(cid: cid)).toList(),
+        mode: InsertMode.insertOrReplace,
+      ),
+    );
+  }
+}