35 lines
1.2 KiB
TypeScript
35 lines
1.2 KiB
TypeScript
import BaseModel from './BaseModel';
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import { index, getModelForClass, prop, DocumentType } from '@typegoose/typegoose';
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/**
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* 自增 ID
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*/
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@index({ name: 1 })
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export default class Counter extends BaseModel {
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@prop({ required: true })
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name: string;
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@prop({ required: true, default: 1 })
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seq: number;
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public static async getNewCounter(param:{name: string, def: number}, lean = true) {
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let {name, def:defaultVal} = param;
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let counter: CounterType = await CounterModel.findOneAndUpdate({ name }, { $inc: { seq: 1 } }, { new: true, upsert: true }).lean(lean);
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if(!counter || (counter&&counter.seq == 1) && defaultVal != 1) {
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counter = await CounterModel.findOneAndUpdate({ name }, { $set: { seq: defaultVal } }, { new: true, upsert: true }).lean(lean);
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}
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return counter?.seq;
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}
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public static async getCounter(param:{name: string, def: number}, lean = true) {
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let {name} = param;
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let counter: CounterType = await CounterModel.findOne({ name }).lean(lean);
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return counter?.seq||0;
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}
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}
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export const CounterModel = getModelForClass(Counter);
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export interface CounterType extends Pick<DocumentType<Counter>, keyof Counter>{}; |