core: remove useless pidCounter

packages/hydrooj/src/interface.ts

@@ -303,7 +303,6 @@ export interface DomainDoc extends Record<string, any> {
     roles: Dictionary<string>,
     gravatar: string,
     bulletin: string,
-    pidCounter: number,
     _join?: any,
     host?: string,
 }

packages/hydrooj/src/model/domain.ts

@@ -48,7 +48,6 @@ class DomainModel {
             bulletin,
             roles: {},
             gravatar: '',
-            pidCounter: 0,
         };
         await bus.serial('domain/create', ddoc);
         await coll.insertOne(ddoc);

packages/hydrooj/src/model/problem.ts

@@ -48,8 +48,10 @@ export class ProblemModel {
         domainId: string, pid: string = null, title: string, content: string, owner: number,
         tag: string[] = [], hidden = false,
     ) {
-        const pidCounter = await domain.inc(domainId, 'pidCounter', 1);
-        const result = await ProblemModel.addWithId(domainId, pidCounter, pid, title, content, owner, tag, hidden);
+        const [doc] = await ProblemModel.getMulti(domainId, {})
+            .sort({ docId: -1 }).limit(1).project({ docId: 1 })
+            .toArray();
+        const result = await ProblemModel.addWithId(domainId, (doc?.docId || 0) + 1, pid, title, content, owner, tag, hidden);
         return result;
     }
 

packages/hydrooj/src/model/setting.ts

@@ -124,7 +124,6 @@ DomainSetting(
     Setting('setting_domain', 'name', 'New domain', 'text', 'name'),
     Setting('setting_domain', 'gravatar', '', 'text', 'gravatar', 'Will be used as the domain icon.'),
     Setting('setting_domain', 'bulletin', '', 'markdown', 'Bulletin'),
-    Setting('setting_storage', 'pidCounter', 0, 'number', 'Problem ID Counter', null, FLAG_HIDDEN | FLAG_DISABLED),
     Setting('setting_storage', 'host', '', 'text', 'Custom host', null, FLAG_HIDDEN | FLAG_DISABLED),
 );
 

packages/migrate-vijos/script.ts

@@ -258,7 +258,6 @@ const tasks = {
         },
         gravatar: 'gravatar',
         bulletin: 'bulletin',
-        pid_counter: 'pidCounter',
     },
     'fs.files': async (doc) => doc,
     'fs.chunks': async (doc) => doc,