utils: introduce course local storage helper class

1 files changed, 3 insertions, 3 deletions

diff --git a/src/database-prod.ts b/src/database-prod.ts
index 6712adb..7f50a35 100644
--- a/src/database-prod.ts
+++ b/src/database-prod.ts
@@ -1,5 +1,5 @@
 import { assert } from "./assert.ts";
-import { getCourseId, getSesskey } from "./utils-ENV.js";
+import { getCourseId, CourseLocalStorage, getSesskey } from "./utils-ENV.js";
 
 const DB_TEMPLATE_LIST_HEADER = `
 <table class="table table-striped">
@@ -31,7 +31,7 @@ let graduationDb = findGraduationDb();
 const ID_QUERY_PARAM_REGEX = /[?&]id=(\d+)/;
 
 async function findGraduationDb() {
-	let graduationDbId = localStorage.getItem(`gruaduationDbId-${getCourseId()}`);
+	let graduationDbId = CourseLocalStorage.getItem("bycs-sol-gruaduationDbId");
 	if (graduationDbId !== null) {
 		return new DB(Number(graduationDbId));
 	}
@@ -46,7 +46,7 @@ async function findGraduationDb() {
 			const match = anchor.href.match(ID_QUERY_PARAM_REGEX);
 			if (match === null) continue;
 			const dbId = match[1];
-			localStorage.setItem("graduationDbId", dbId);
+			CourseLocalStorage.setItem("bycs-sol-graduationDbId", dbId);
 			return new DB(Number(dbId));
 		}
 	}