数据库：将activities等表移到gm数据库中

shared/db/ActivityGroupType.ts

@@ -1,5 +1,5 @@
 import BaseModel from './BaseModel';
-import { index, getModelForClass, prop, DocumentType } from '@typegoose/typegoose';
+import { index, getModelForClass, prop, DocumentType, ReturnModelType, mongoose } from '@typegoose/typegoose';
 import { CounterModel } from './Counter';
 import { COUNTER, ACTIVITY_TYPE } from '../consts';
 
@@ -111,7 +111,12 @@ export default class Activity_GroupType extends BaseModel {
     }
 }
 
-export const ActivityGroupTypeModel = getModelForClass(Activity_GroupType);
+export let ActivityGroupTypeModel: ReturnModelType<typeof Activity_GroupType, {}>;
+export function loadActivityGroupType(connect: mongoose.Connection) {
+    ActivityGroupTypeModel = getModelForClass(Activity_GroupType, {
+        existingConnection: connect
+    });
+}
 
 export interface ActivityGroupTypeInter extends Pick<DocumentType<Activity_GroupType>, keyof Activity_GroupType> {
   id: number;