Sequelize可以创建数据但是不能从Models中获取数据

Question

我无法理解我的代码到底出了什么问题。但我知道我在实现 Promise 的方式上存在问题。作为 Shipment.findAll() returns 一个承诺，我再次创建一个承诺供我的路由器使用。

那为什么createShipment工作正常，而getAllShipments不工作。

发货控制器

const Worker = require ('../models').Worker;
const Shipment = require ('../models').Shipment;

function createShipment (shipmentName, shipmentStatus) {
    return new Promise ((resolve, reject) => {
        Shipment.create({name: shipmentName, status: shipmentStatus})
            .then (shipment => resolve(shipment)) 
            .catch (error => reject(error));
    });
}

function getAllShipments () {
    return new Promise ((resolve, reject) => {
        Shipment.findAll()
        .then(allShipments => {
            console.log(allShipments);
            return resolve(allShipments);
        })
        .catch(error => reject(error))
    })
}

module.exports = {
    createShipment,
    getAllShipments
}

货运路由器

var router = require('express').Router();
var Shipment = require('./../../../controllers/shipment');

router.post ('/' , (req,res) => {
    Shipment.createShipment ('New Shipment', 'Pending')
        .then (shipment => {
            res.status(200).json({status: true, data: shipment, errors: null, msg: "Shipment Added Successfully"});
        })
        .catch (error => {
            res.status(200).json({status: false, data: {}, errors: error, msg: "Error Creating Shipment. Please see details in Errors Object"});
        });
});

router.get('/' , (req, res) => {
    Shipment.getAllShipments()
        .then(allShipments => {
            return res.status(200).status({status: true, data: allShipments, errors: null, msg: "All Shipments fetched successfully"});
        })
        .catch(error => {
            return res.status(200).json({status: false, data: {}, errors: error, msg: "Error Fetching Shipments. Please see details in Errors Object"});
        });
})

module.exports = router;

我做错了什么？因为 getAllShipments 在控制台上给出了我的输出，但是路由没有发送响应，只是在等待。

Answer 1

变化：

Shipment.getAllShipments()
        .then(allShipments => {
            return res.status(200).status({status: true, data: allShipments, errors: null, msg: "All Shipments fetched successfully"});
        })

至：

 return res.status(200).json({status: true, data: allShipments, errors: null, msg: "All Shipments fetched successfully"});

只是一个错字，你写了两次状态而不是 json

Sequelize可以创建数据但是不能从Models中获取数据

Sequelize can create data but can't get data from Models

mysql

node.js

sequelize.js

sequelize-cli