问题描述

我想查找在某个日期范围内创建的 MySql 表中的所有记录.

I want to find all records in a MySql table which was created within a certain range of date.

所以我写了:

import { Sequelize, Model, DataTypes, Op } from 'sequelize';

const sequelize = new Sequelize({
  // some db connection config
  dialect: 'mysql'
})

class Patient extends Model {
  public guid!: number;
  public name!: string;

  public recordState: number = 0;
  public createdAt?: Date;
  public updatedAt?: Date
}
Patient.init({
  guid: {
    type: DataTypes.STRING,
    primaryKey: true,
    allowNull: false
  },
  name: { type: DataTypes.STRING, allowNull: false },

  recordState: {
    type: DataTypes.INTEGER,
    allowNull: false,
    defaultValue: 0
  },
  createdAt: DataTypes.DATE,
  updatedAt: DataTypes.DATE
}, {
  sequelize,
  modelName: 'Patient',
  timestamps: false
})

Patient.findAll({
  where: {
    createdAt: {
      [Op.between]: [new Date('2020-02-02'), new Date()]
    }
  }
})

但是，当我尝试用 tsc 编译它时，它会报告如下错误:

But, when I try to compile it with tsc, it reports error like:

sequelize.ts:50:5 - error TS2322: Type '{ [between]: Date[]; }' is not assignable to type 'string | number | boolean | WhereAttributeHash | AndOperator | OrOperator | Literal | Where | Fn | Col | WhereOperators | Buffer | WhereGeometryOptions | (string | ... 2 more ... | Buffer)[]'.
  Types of property '[Op.between]' are incompatible.
    Type 'Date[]' is not assignable to type 'string | number | boolean | [number, number] | WhereAttributeHash | AndOperator | OrOperator | Literal | Where | ... 5 more ... | (string | ... 2 more ... | Buffer)[]'.
      Type 'Date[]' is not assignable to type '(string | number | WhereAttributeHash | Buffer)[]'.
        Type 'Date' is not assignable to type 'string | number | WhereAttributeHash | Buffer'.
          Type 'Date' is not assignable to type 'WhereAttributeHash'.
            Index signature is missing in type 'Date'.

50     createdAt: {
       ~~~~~~~~~


Found 1 error.

看来我不能在日期范围内使用 Op.between?但是我用JS写类似的代码就ok了.

It seems I cannot use Op.between with a date range? But it's ok when I wrote similar code in JS.

所以我想知道我的 TS 代码是否真的有问题，或者只是类型定义中缺少，或者不建议使用带有日期的 Op.between?

So I wonder if there is really something wrong in my TS code or just a missing in the type definition, or maybe using Op.between with dates is not recommended?

推荐答案

您传递的是日期对象而不是字符串.这样做:

You're passing a date object instead of a string. Do this:

Patient.findAll({
  where: {
    createdAt: {
      [Op.between]: [new Date('2020-02-02').toISOString(), new Date().toISOString()]
    }
  }
})

这篇关于在 Sequelize with Dates 中使用 Op.between 时出现 TypeScript 错误的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持编程学习网！