Sequelize：急切加载和排序（在父表上）

Question

我在 FeathersJS 项目中进行 Sequelize，在尝试急切加载关联和按父表排序时遇到问题。如果我只是将订单 OR 添加到查询中，一切正常，当我同时使用这两个时，我会收到错误：Unhandled rejection Error: 'sales_flat_order' in order / group clause is not valid association

查询：

sequelize.models.orders
    .findAll({
      limit: 10,
      include: [ sequelize.models.items ],
      order: [[ sequelize.models.orders, 'createdAt' ]],
    })
    .then(orders => {
      // Error
    });

订购型号：

const Sequelize = require('sequelize');

module.exports = function(sequelize) {
  const order = sequelize.define('orders', {
    id: { type: Sequelize.INTEGER, primaryKey: true, field: 'entity_id' },
    customerEmail: { type: Sequelize.STRING, field: 'customer_email' },
    customerFirstName: { type: Sequelize.STRING, field: 'customer_firstname' },
    customerLastName: { type: Sequelize.STRING, field: 'customer_lastname' },
    state: { type: Sequelize.STRING },
    grandTotal: { type: Sequelize.FLOAT, field: 'grand_total' },
    createdAt: { type: Sequelize.DATE, field: 'created_at' },
    updatedAt: { type: Sequelize.DATE, field: 'updated_at' },
  }, {
    freezeTableName: true,
    tableName: 'sales_flat_order',
    classMethods: {
      associate(models) {
        order.hasMany(models.items, { foreignKey: 'orderId' });
      }
    }
  });

  return order;
};

物品型号：

const Sequelize = require('sequelize');

module.exports = function(sequelize) {
  const item = sequelize.define('items', {
    id: { type: Sequelize.INTEGER, primaryKey: true, field: 'item_id' },
    orderId: { type: Sequelize.INTEGER, field: 'order_id' },
    productId: { type: Sequelize.INTEGER, field: 'product_id' },
    productType: { type: Sequelize.STRING, field: 'product_type' },
    sku: { type: Sequelize.STRING },
    name: { type: Sequelize.STRING },
    qtyOrdered: { type: Sequelize.INTEGER, field: 'qty_ordered' },
    price: { type: Sequelize.FLOAT },
    createdAt: { type: Sequelize.DATE, field: 'created_at' },
    updatedAt: { type: Sequelize.DATE, field: 'updated_at' },
  }, {
    freezeTableName: true,
    tableName: 'sales_flat_order_item',
    classMethods: {
      associate(models) {
        item.belongsTo(models.orders, { foreignKey: 'orderId' });
      }
    }
  });

  return item;
};

Answer 1

问题是

order: [[ sequelize.models.orders, 'createdAt' ]]

尝试按 关联 模型 sequelize.models.orders 的列“createdAt”进行排序。既然你写了

sequelize.models.orders
.findAll({

并尝试按 关联 模型sequelize.models.orders 进行排序，您尝试将模型本身作为关联引用。这不起作用，因为您创建了订单和商品之间的关联，而不是订单和订单之间的关联。

你要找的代码可能很简单

order: [['createdAt', 'ASC' ]]

按您应用findAll() 的型号排序。所以它通过orders.createdAt订购。