有人知道如何解决这个问题吗？有些东西我没看到。为了查看控制器是否正常工作，我以 json 格式返回了接收请求的响应，它工作正常，没有错误。

问题似乎出在控制器上，但是控制器……

编辑

控制器

import Post from '../models/Post';
import *  as Yup from 'yup';

class PostController {
    async store(req, res) {

        try {
            //Checks if the fields have been filled correctly
            const schema = Yup.object().shape({
                title: Yup.string()
                    .required(),
                content: Yup.string()
                    .required()
            });


            if(!(await schema.isValid(req.body))) {
                return res.status(400).json({ error: 'Error 1' });
            }

            //Abstraction of fields
            const { title, content } = req.body;
            const createPost = await Post.create(title, content);

            if(!createPost) {
                return res.json({error: 'Error 2'})
            }

            //If everything is correct, the information will be registered and returned.
            return res.json({
                title,
                content,
            });
        }
        catch (err) {
            console.log("Error: " + err);
            return res.status(400).json({error: 'Error 3'});
        }
    }
}

export default new PostController();

型号：

import Sequelize, { Model } from 'sequelize';

class Post extends Model {
    static init(sequelize) {
        //Fields registered by the user
        super.init({
            id: {
                type: Sequelize.INTEGER,
                primaryKey: true
            },
            title: Sequelize.STRING,
            content: Sequelize.TEXT,
            created_at: {
                type: Sequelize.DATE,
                defaultValue: Sequelize.NOW,
            },
            updated_at: {
                type: Sequelize.DATE,
                defaultValue: Sequelize.NOW,
            },
        },
        {
            sequelize,
            tableName: 'posts'
        });

        return this;
    }
}

export default Post;

迁移：

'use strict';

module.exports = {
  up: (queryInterface, Sequelize) => {
    return queryInterface.createTable('posts', {
        id: {
            type: Sequelize.INTEGER,
            allowNull: false,
            autoIncrement: true,
            primaryKey: true
        },
        title: {
            type: Sequelize.STRING,
            allowNull: false,
        },
        content: {
            type: Sequelize.TEXT,
            allowNull: false,
        },
        created_at: {
            type: Sequelize.DATE,
            allowNull: false,
        },
        updated_at: {
            type: Sequelize.DATE,
            allowNull: false,
        }
    });
  },

  down: (queryInterface) => {
    return queryInterface.dropTable('posts');
  }
};

终端错误：

TypeError: Cannot read property 'length' of undefined