Question

我有2个表：admin_user和admin_account。

const Sequelize = require('sequelize');
module.exports = (sequelize, DataTypes) => {
  var admin_user = sequelize.define('admin_user', {
    id: {
      autoIncrement: true,
      type: Sequelize.INTEGER,
      primaryKey: true
    },
    name: {
      type: Sequelize.STRING
    },
    email: {
      type: Sequelize.STRING,
      allowNull: false,
      unique: true,
      validate: {
        isEmail: true,
      }
    },
    user_name:{
      type: Sequelize.STRING,
      allowNull: false,
      unique: true
    }
  });

  admin_user.associate = (models) =>{
    admin_user.hasOne(models.admin_account, { foreignKey: 'admin_user_id' });
  };

  return admin_user;
};


'use strict';
const Sequelize = require('sequelize');
module.exports = (sequelize, DataTypes) => {
  var admin_account = sequelize.define('admin_account', {
    admin_user_id:{
      type: Sequelize.INTEGER,
      primaryKey: true
    },
    password: {
      type: Sequelize.STRING
    }
  });
  return admin_account;
};

并在创建表时出现此错误：

执行（默认）：如果不存在admin_users（id INTEGER auto_increment，name VARCHAR（255），email VARCHAR（255）NOT NULL UNIQUE，则创建表user_name VARCHAR（255）NOT NULL唯一，createdAt DATETIME NOT NULL，updatedAt DATETIME NOT NULL，主键（id））ENGINE = InnoDB; 执行中（默认）：从admin_users到milkman_prod1显示索引执行（默认）：如果不存在，则创建表admin_accounts（admin_user_id INTEGER，password VARCHAR（255），createdAt DATETIME NOT NULL，updatedAt DATETIME NOT NULL ，主键（admin_user_id），外键（admin_user_id）参考admin_users（id）在更新级联上删除设置为空）ENGINE = InnoDB; 未处理的拒绝SequelizeDatabaseError：无法添加外键约束

Answer 1

请尝试使用以下代码：

    'use strict';
    const Sequelize = require('sequelize');
    module.exports = (sequelize, DataTypes) => {
      var admin_account = sequelize.define('admin_user', {
        admin_user_id:{
          type: Sequelize.INTEGER,
          primaryKey: true
        },
        password: {
          type: Sequelize.STRING
        }
      });
admin_account.associate = (models) =>{
    admin_account.belongsTo(models.admin_user);
  };
      return admin_account;
    };

未处理的拒绝SequelizeDatabaseError：无法添加外键约束

1 个答案: