core: update contentType for import

packages/import-qduoj/handler.ts

@@ -76,7 +76,7 @@ class ImportQduojHandler extends Handler {
                 if (+pdoc.display_id) pdoc.display_id = `P${pdoc.display_id}`;
                 const n = await problem.get(domainId, pdoc.display_id);
                 if (n) pdoc.display_id = null;
-                const pid = await problem.add(domainId, pdoc.display_id, pdoc.title, content, this.user._id, pdoc.tags);
+                const pid = await problem.add(domainId, pdoc.display_id, pdoc.title, JSON.stringify(content), this.user._id, pdoc.tags);
                 const config: ProblemConfig = {
                     time: `${pdoc.time_limit}ms`,
                     memory: `${pdoc.memory_limit}m`,

packages/import-qduoj/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@hydrooj/import-qduoj",
-    "version": "1.1.5",
+    "version": "1.1.6",
     "description": "Import QDUOJ problem export",
     "main": "package.json",
     "repository": "https://github.com/hydro-dev/Hydro.git",