Question

我拥有这个模型。

'use strict'

var Sequelize = require('sequelize');
var db = require('../../config/database');

const TransactionModel = db.define('transactions', {
    id : {
        type: Sequelize.INTEGER,
        primaryKey: true
    },
    guid: {
        type: Sequelize.STRING
    },
});

module.exports = TransactionModel

我拥有第二个模型

'use strict'

var Sequelize = require('sequelize');
var db = require('../../config/database');
const transactionModel = require('../models/transactionModel')


const accessCredentialsApiModel = db.define('transactions_items', {
    guid: {
        type: Sequelize.STRING
    },
    transaction_id : {
        field : 'transaction_id',
        type: Sequelize.INTEGER,
        references: 'transactions',
        key: 'id'
    },
    created_at : {
        type : Sequelize.DATE
    },
    updated_at : {
        type : Sequelize.DATE
    },
    qtd_event : {
        type: Sequelize.INTEGER
    },
    amount: {
        type: Sequelize.DECIMAL(10, 2)
    }

});

transactionModel.hasMany(accessCredentialsApiModel);


module.exports = accessCredentialsApiModel

我通过将外键放在第二个模型中来为外键关系使用关联。但是是时候进行下面的查询了。

   let transactions = await transactionModel.findAll({
        where: {
          entity_id: arrayEntities[i].id,
        },
        include: [
            { model: transactionsItemsModel}
        ],
        raw: true
    });
    console.log(transactions)

我收到错误消息

SequelizeDatabaseError: Unknown column 'transactions_items.transactionId' in 'field list'

我找不到解决问题的方法，有人可以帮助我吗？

Answer 1

该错误表明它正在寻找transactionId，但您定义的是transaction_id。您可以像这样告诉sequelize什么是外键和源键

transactionModel.hasMany(accessCredentialsApiModel, {foreignKey: 'id', sourceKey: 'transaction_id'});

使用外键序列查询的问题

1 个答案: