✨ feat(db): 给item表增加只读节点

shared/db/Item.ts

@@ -1,5 +1,5 @@
 import BaseModel from './BaseModel';
-import { index, getModelForClass, prop, DocumentType, modelOptions } from '@typegoose/typegoose';
+import { index, getModelForClass, prop, DocumentType, modelOptions, ReturnModelType, mongoose } from '@typegoose/typegoose';
 import { BAG } from '../pubUtils/dicParam';
 import { SearchItemParam } from '../domain/backEndField/search';
 // const Transaction = require("mongoose-transactions");
@@ -141,6 +141,13 @@ export default class Item extends BaseModel {
 
 export const ItemModel = getModelForClass(Item);
 
+export let ItemROModel: ReturnModelType<typeof Item, {}>;
+export function loadItemROModel(connect: mongoose.Connection) {
+    ItemROModel = getModelForClass(Item, {
+        existingConnection: connect
+    });
+}
+
 export interface ItemType extends Pick<DocumentType<Item>, keyof Item> {
     id: number;
 };