【问题标题】:Sequelize : relation "<tablename>" does not exist when querying table while seedingSequelize:在播种时查询表时,关系“<tablename>”不存在
【发布时间】:2019-01-10 15:46:37
【问题描述】:
  1. Sequelize 连接给定的 sequelizerc / config.js 文件
  2. Sequelize 运行迁移文件并使用定义的模型创建表
  3. Sequelize 运行播种文件但在尝试查询创建的数据时出错,即 错误:关系“guest”不存在

我注意到的有趣的事情:在查询 User 表时,我注意到它没有返回我期望的数据...而不是 User 表上的用户,它似乎正在返回我设置的实际 postgres 数据库用户。

种子文件

var userId1 = uuidv4();
await queryInterface.bulkInsert(
  { tableName: 'User', schema: 'public' }, 
  [
    {email: "user1@email.com", id:userId1,  password: User.prototype.generateHash("password"), createdAt:dateUtil.createDateAsUTC(new Date()), updatedAt:dateUtil.createDateAsUTC(new Date())}
  ], {}
);

const user = await queryInterface.sequelize.query(
  `SELECT * from USER;`
);

console.log(user);

var guestId1 = uuidv4();
await queryInterface.bulkInsert(
  { tableName: 'Guest', schema: 'public' }, 
  [
    {id:guestId1, userId: userId1, createdAt:dateUtil.createDateAsUTC(new Date()), updatedAt:dateUtil.createDateAsUTC(new Date())}
  ], {}
);

const guest = await queryInterface.sequelize.query(
  `SELECT * from Guest;`
);

从四处挖掘看来,它可能没有使用正确的数据库模式?我在public 下的postgres 中有一个,所有表均已正确创建,并且种子数据已正确添加到数据库中。我尝试将架构添加到 config.js 和模型文件中,但没有任何效果。

CONFIG.JS

development: {
        username: process.env.DATABASE_USERNAME,
        password: process.env.DATABASE_PASSWORD,
        database: process.env.DATABASE_NAME,
        host: process.env.DATABASE_HOST,
        url: process.env.DATABASE_URL,
        dialect: 'postgres',
        define: {
            schema: "public"
        }
    }

Guest.js

module.exports = (sequelize, DataTypes) => {
  var Guest = sequelize.define('Guest', {}, 
  {
    tableName:"Guest",
  });
  Guest.associate = function(models) {
    Guest.belongsTo(models.User, {as: 'User', foreignKey: 'userId'}); // Adds userId 
  };
  return Guest;
};

注销时 queryInterface 模型似乎是空的......

QueryInterface {
  sequelize:
   Sequelize {
     options:
      { dialect: 'postgres',
        dialectModulePath: null,
        host: 'localhost',
        protocol: 'postgres',
        define: {},
        query: {},
        sync: {},
        timezone: '+00:00',
        logging: [Function: logMigrator],
        omitNull: false,
        native: false,
        replication: false,
        ssl: false,
        pool: {},
        quoteIdentifiers: true,
        hooks: {},
        retry: [Object],
        transactionType: 'DEFERRED',
        isolationLevel: null,
        databaseVersion: '9.4.0',
        typeValidation: false,
        benchmark: false,
        operatorsAliases: true,
        username: 'username',
        password: 'password',
        database: 'dbname',
        url: 'postgres://username:password@localhost:5432/dbname',
        port: '5432' },
     config:
      { database: '<dbname>',
        username: '<username>',
        password: 'password',
        host: 'localhost',
        port: '5432',
        pool: {},
        protocol: 'postgres',
        native: false,
        ssl: false,
        replication: false,
        dialectModulePath: null,
        keepDefaultTimezone: undefined,
        dialectOptions: undefined },
     dialect:
      PostgresDialect {
        sequelize: [Circular],
        connectionManager: [Object],
        QueryGenerator: [Object] },
     queryInterface: [Circular],
     models: {},
     modelManager: ModelManager { models: [], sequelize: [Circular] }

【问题讨论】:

    标签: node.js postgresql sequelize.js hapijs


    【解决方案1】:

    更正了双引号围绕表名的问题:

    const guest = await queryInterface.sequelize.query( SELECT * from "Guest"; );

    【讨论】:

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