在Sequelize中包含来自findOne查询的模型会返回错误

Question

I am trying to get a venue by it's ID from the database using Sequelize as an ORM. I've set up the models in a belongsTo association. So 1 venue can have 1 phone number as well as 1 address. I did read the documentation of Sequelize located on their website but without finding a fix for this issue. Below I've provided you with the Query, the error message and the way that the models are connected with each other.

This is the query:

function findById(id) {
  return this.findOne({
    where: { id: id },
    include: [
      {
        model: models.Address,
        as: "venue_address"
      },
      {
        model: models.PhoneNumber,
        as: "phone_number"
      }
    ]
  }).then((venue) => {
    if (!venue) {
      return utils.createError(404, `Venue with id ${id} does not exist`);
    }
    return venue;
  });
}

Sequelize is returning the following error:

TypeError: Cannot read property 'getTableName' of undefined
    at Function._validateIncludedElement (/Users/kevin/Tabbs/API-Mysql/node_modules/sequelize/lib/model.js:465:30)
    at options.include.options.include.map.include (/Users/kevin/Tabbs/API-Mysql/node_modules/sequelize/lib/model.js:395:37)
    at Array.map (<anonymous>)
    at Function._validateIncludedElements (/Users/kevin/Tabbs/API-Mysql/node_modules/sequelize/lib/model.js:390:39)
    at Promise.try.then.then (/Users/kevin/Tabbs/API-Mysql/node_modules/sequelize/lib/model.js:1576:14)
    at tryCatcher (/Users/kevin/Tabbs/API-Mysql/node_modules/bluebird/js/release/util.js:16:23)
    at Promise._settlePromiseFromHandler (/Users/kevin/Tabbs/API-Mysql/node_modules/bluebird/js/release/promise.js:512:31)
    at Promise._settlePromise (/Users/kevin/Tabbs/API-Mysql/node_modules/bluebird/js/release/promise.js:569:18)
    at Promise._settlePromise0 (/Users/kevin/Tabbs/API-Mysql/node_modules/bluebird/js/release/promise.js:614:10)
    at Promise._settlePromises (/Users/kevin/Tabbs/API-Mysql/node_modules/bluebird/js/release/promise.js:693:18)
    at Async._drainQueue (/Users/kevin/Tabbs/API-Mysql/node_modules/bluebird/js/release/async.js:133:16)
    at Async._drainQueues (/Users/kevin/Tabbs/API-Mysql/node_modules/bluebird/js/release/async.js:143:10)
    at Immediate.Async.drainQueues [as _onImmediate] (/Users/kevin/Tabbs/API-Mysql/node_modules/bluebird/js/release/async.js:17:14)
    at runCallback (timers.js:756:18)
    at tryOnImmediate (timers.js:717:5)
    at processImmediate [as _immediateCallback] (timers.js:697:5)
Unhandled rejection Error: Transaction cannot be rolled back because it has been finished with state: commit
    at Transaction.rollback (/Users/kevin/Tabbs/API-Mysql/node_modules/sequelize/lib/transaction.js:85:35)
    at models.Address.createAddress.then.catch (/Users/kevin/Tabbs/API-Mysql/server/routes/venue.js:57:13)
    at tryCatcher (/Users/kevin/Tabbs/API-Mysql/node_modules/bluebird/js/release/util.js:16:23)
    at Promise._settlePromiseFromHandler (/Users/kevin/Tabbs/API-Mysql/node_modules/bluebird/js/release/promise.js:512:31)
    at Promise._settlePromise (/Users/kevin/Tabbs/API-Mysql/node_modules/bluebird/js/release/promise.js:569:18)
    at Promise._settlePromise0 (/Users/kevin/Tabbs/API-Mysql/node_modules/bluebird/js/release/promise.js:614:10)
    at Promise._settlePromises (/Users/kevin/Tabbs/API-Mysql/node_modules/bluebird/js/release/promise.js:689:18)
    at Async._drainQueue (/Users/kevin/Tabbs/API-Mysql/node_modules/bluebird/js/release/async.js:133:16)
    at Async._drainQueues (/Users/kevin/Tabbs/API-Mysql/node_modules/bluebird/js/release/async.js:143:10)
    at Immediate.Async.drainQueues [as _onImmediate] (/Users/kevin/Tabbs/API-Mysql/node_modules/bluebird/js/release/async.js:17:14)
    at runCallback (timers.js:756:18)
    at tryOnImmediate (timers.js:717:5)
    at processImmediate [as _immediateCallback] (timers.js:697:5)

The models are associated like this:

models.Venue.belongsTo(models.PhoneNumber, {
      as: "phone_number",
      onDelete: "CASCADE",
      foreignKey: { allowNull: false }
    });
    models.Venue.belongsTo(models.Address, {
      as: "venue_address",
      onDelete: "CASCADE",
      foreignKey: { allowNull: false }
    });

This is what I am receiving back when I do not include anything:

Appreciate all the help fixing this issue!

Answer 1

I think your tables are being initialized out of order. If you see my example here: Example Index File you will notice that I have an array of models in a specific order which I loop through to initialize the tables. I think you have a foreign key dependency that is not being initialized before the association is being created and this is why you are seeing this error.

Short answer: You need to make sure foreign key dependencies are initialized before the dependent relation.