Sql 续集有很多失败

我试图与Sequelize建立一对多的关联：

以下是我的项目：

'use strict';
import { models } from '../sequelize/index';
var ProjectImages = require('./projectImages');

module.exports = (sequelize, DataTypes) => {
    const Projects = sequelize.define(
        'Projects',
        {
            id: {
                allowNull: false,
                autoIncrement: true,
                primaryKey: true,
                type: DataTypes.INTEGER,
            },

            title: {
                type: DataTypes.STRING,
            },
        },
        {}
    );
    Projects.associate = function(models) {
        // associations can be defined here
        Projects.belongsToMany(models.Tags, { through: models.TagsProjects });
        Projects.hasMany(models.ProjectImages);
    };

    return Projects;
};

'use strict';
import { models } from '../sequelize/index';

module.exports = (sequelize, DataTypes) => {
    const ProjectImages = sequelize.define(
        'ProjectImages',
        {
            id: {
                allowNull: false,
                autoIncrement: true,
                primaryKey: true,
                type: DataTypes.INTEGER,
            },

            img: {
                type: DataTypes.STRING,
            },

            createdAt: {
                allowNull: false,
                type: DataTypes.DATE,
                defaultValue: DataTypes.literal('CURRENT_TIMESTAMP'),
            },

            updatedAt: {
                allowNull: false,
                type: DataTypes.DATE,
                defaultValue: DataTypes.literal('CURRENT_TIMESTAMP'),
            },
        },
        {}
    );

    return ProjectImages;
};

下面是这些项目的图片：

'use strict';
import { models } from '../sequelize/index';
var ProjectImages = require('./projectImages');

module.exports = (sequelize, DataTypes) => {
    const Projects = sequelize.define(
        'Projects',
        {
            id: {
                allowNull: false,
                autoIncrement: true,
                primaryKey: true,
                type: DataTypes.INTEGER,
            },

            title: {
                type: DataTypes.STRING,
            },
        },
        {}
    );
    Projects.associate = function(models) {
        // associations can be defined here
        Projects.belongsToMany(models.Tags, { through: models.TagsProjects });
        Projects.hasMany(models.ProjectImages);
    };

    return Projects;
};

'use strict';
import { models } from '../sequelize/index';

module.exports = (sequelize, DataTypes) => {
    const ProjectImages = sequelize.define(
        'ProjectImages',
        {
            id: {
                allowNull: false,
                autoIncrement: true,
                primaryKey: true,
                type: DataTypes.INTEGER,
            },

            img: {
                type: DataTypes.STRING,
            },

            createdAt: {
                allowNull: false,
                type: DataTypes.DATE,
                defaultValue: DataTypes.literal('CURRENT_TIMESTAMP'),
            },

            updatedAt: {
                allowNull: false,
                type: DataTypes.DATE,
                defaultValue: DataTypes.literal('CURRENT_TIMESTAMP'),
            },
        },
        {}
    );

    return ProjectImages;
};

我正在将数据库与类似的内容同步。如果我不尝试在投影图像中创建任何行，我不会得到任何错误；但是，如果我尝试使用此创建行（id为1的项目存在）：

我得到这个错误：

Executing (default): INSERT INTO `ProjectImages` 
(`id`,`img`,`createdAt`,`updatedAt`,`ProjectId`) 
VALUES
(1,'https://fakeimg.pl/500x500/',CURRENT_TIMESTAMP,CURRENT_TIMESTAMP,1);
[1] Unhandled rejection SequelizeForeignKeyConstraintError: 
Cannot add or update a child row: a foreign key constraint fails 
(`9uhfggfhf2`.`projectimages`, 
CONSTRAINT `projectimages_ibfk_1` 
FOREIGN KEY (`ProjectId`) 
REFERENCES `Projects` (`id`) 
ON DELETE SET NULL 
ON UPDATE CASCADE)

此外，如果我在同步时未将行添加到ProjectsImages中，我也不会收到任何错误，并且如果我尝试在DB中手动插入行，请执行以下操作：

INSERT INTO `ProjectImages` (`id`,`img`,`createdAt`,`updatedAt`,`ProjectsIdA`) 
VALUES (1,'https://fakeimg.pl/500x500/',CURRENT_TIMESTAMP,CURRENT_TIMESTAMP,1);

它毫无问题地工作

---

有人知道那里发生了什么吗？

正如我所说的，为了与数据库同步，我使用了类似的东西

在片段的末尾，我必须为数据添加种子：

seed([
    articles, 
    projectImages, 
    projects, 
    tags, 
    tagsProjects, 
    users, 
    usersLogins
]);

您会注意到，我在创建

项目之前插入了
项目图像
。把事情安排得井井有条解决了问题

seed([
    articles, 
    projects, 
    projectImages, 
    tags, 
    tagsProjects, 
    users, 
    usersLogins
]);

：）