Question

我使用sequelize有一个全新的Node应用程序，但它不会让我运行单个查询。

我正在尝试find任何事情而且它不起作用：

var models = require('./models');
models.User.findById(1, { logging: console.log })

每个find查询最终都会显示完全相同的错误。数据库已迁移并播种。我通过打开它进行了验证，其中有很多用户。

这是我的模特：

// user.js
'use strict';
module.exports = function(sequelize, DataTypes) {
  var User = sequelize.define('User', {
    email: DataTypes.STRING,
    name: DataTypes.STRING
  }, {
    classMethods: {
      associate: function(models) {
        // associations can be defined here
        User.belongsToMany(models.Group, {through: 'Membership'})
      }
    }
  });
  return User;
};

堆栈跟踪：

Executing (default): SELECT `id`, `email`, `name`, `createdAt`, `updatedAt` FROM `Users` AS `User` WHERE `User`.`id` = 1;
/node_modules/sqlite3/lib/trace.js:28
                    throw err;
                    ^

TypeError: date.indexOf is not a function
    at DATE.parse (/node_modules/sequelize/lib/dialects/sqlite/data-types.js:28:14)
    at /node_modules/sequelize/lib/dialects/sqlite/query.js:170:36
    at /node_modules/lodash/lodash.js:12572:23
    at /node_modules/lodash/lodash.js:4361:15
    at baseForOwn (/node_modules/lodash/lodash.js:2622:24)
    at Function.mapValues (/node_modules/lodash/lodash.js:12571:7)
    at /node_modules/sequelize/lib/dialects/sqlite/query.js:134:32
    at Array.map (native)
    at Statement.afterExecute (/node_modules/sequelize/lib/dialects/sqlite/query.js:133:39)
--> in Database#all('SELECT `id`, `email`, `name`, `createdAt`, `updatedAt` FROM `Users` AS `User` WHERE `User`.`id` = 1;', [], [Function])
    at /node_modules/sequelize/lib/dialects/sqlite/query.js:241:36
    at Promise._execute (/node_modules/bluebird/js/release/debuggability.js:272:9)
    at Promise._resolveFromExecutor (/node_modules/bluebird/js/release/promise.js:473:18)
    at new Promise (/node_modules/bluebird/js/release/promise.js:77:14)
    at executeSql (/node_modules/sequelize/lib/dialects/sqlite/query.js:103:19)
    at tryCatcher (/node_modules/bluebird/js/release/util.js:16:23)
    at Promise._settlePromiseFromHandler (/node_modules/bluebird/js/release/promise.js:502:31)
    at Promise._settlePromise (/node_modules/bluebird/js/release/promise.js:559:18)
    at Promise._settlePromise0 (/node_modules/bluebird/js/release/promise.js:604:10)
    at Promise._settlePromises (/node_modules/bluebird/js/release/promise.js:683:18)
    at Promise._fulfill (/node_modules/bluebird/js/release/promise.js:628:18)
    at MappingPromiseArray.PromiseArray._resolve (/node_modules/bluebird/js/release/promise_array.js:125:19)
    at MappingPromiseArray._promiseFulfilled (/node_modules/bluebird/js/release/map.js:97:18)
    at Promise._settlePromise (/node_modules/bluebird/js/release/promise.js:564:26)
    at Promise._settlePromise0 (/node_modules/bluebird/js/release/promise.js:604:10)

编辑：如果我注释掉堆栈中最顶层的项目（这是一个向后兼容的东西）它工作正常.... ????????????请告诉我，我不是疯了。

Answer 1

重要的是要注意createdAt和updatedAt默认声明为Sequelize.DATE。

如果你使用的数据库是mysql / sqlite，那基本上应该是一个日期字符串，正如你在documentation中看到的那样。

我过去遇到了同样的错误，当我使用Date.now()为我的数据库播种条目时，它为字段createdAt和updatedAt返回了一个数字时间戳：

'use strict';

module.exports = {
  up: function (queryInterface, Sequelize) {
    return queryInterface.bulkInsert('Pokemons', [
      {name: 'bulbasaur', createdAt: Date.now(), updatedAt: Date.now()},/*...*/
    ]);
  },
  /*...*/
};

要解决此问题，请将其更改为new Date()，这将返回日期字符串。

'use strict';

module.exports = {
  up: function (queryInterface, Sequelize) {
    return queryInterface.bulkInsert('Pokemons', [
      {name: 'bulbasaur', createdAt: new Date(), updatedAt: new Date()},/*...*/
    ]);
  },
  /*...*/
};

也许这就是你的情况。

Sequelize崩溃任何查找查询

1 个答案: