implemented full-text search

task/src/main/java/de/srsoftware/umbrella/task/SqliteDb.java

@@ -120,9 +120,11 @@ CREATE TABLE IF NOT EXISTS {0} (
 			var tasks = new HashMap<Long,Task>();
 			var query = select(ALL).from(TABLE_TASKS).leftJoin(ID,TABLE_TASKS_USERS,TASK_ID)
 					.where(USER_ID,equal(userId));
-			for (var key : keys) query.where(NAME,like("%"+key+"%"));
-			LOG.log(WARNING,"Full-text search not implemented for tasks");
-
+			if (fulltext) {
+				for (var key : keys) query.where(format("CONCAT({0},\" \",{1})",NAME,DESCRIPTION),like("%"+key+"%"));
+			} else {
+				for (var key : keys) query.where(NAME,like("%"+key+"%"));
+			}
 			var rs = query.exec(db);
 			while (rs.next()){
 				var task = Task.of(rs);