model.build is not a function using sequelize adapter

[jrcastillo]

Hi guys !, I'm currently doing a small api on express and I'm running into an error when trying using factory.create('director') or factory.build('director') on my tests.
Here is the stacktrace:

TypeError: Model.build is not a function
    at SequelizeAdapter.build (~/node_modules/factory-girl/index.js:1270:20)
    at Factory._callee2$ (~/node_modules/factory-girl/index.js:155:33)
    at tryCatch (~/node_modules/regenerator-runtime/runtime.js:65:40)
    at Generator.invoke [as _invoke] (~/node_modules/regenerator-runtime/runtime.js:303:22)
    at Generator.prototype.(anonymous function) [as next] (~/node_modules/regenerator-runtime/runtime.
js:117:21)
    at step (~/node_modules/babel-runtime/helpers/asyncToGenerator.js:17:30)
    at ~/node_modules/babel-runtime/helpers/asyncToGenerator.js:28:13
    at <anonymous>

I believe it is a problem on how I'm using the library but can't figure out why. I setup the factory guiding myself through #63 (comment) but added it into an index.js file in the directory so I could export the factory to all of the rest of the files without having to repeat the process per model definition:

const fs = require('fs');
const path = require('path');
const _ = require('lodash');

var factory = require('factory-girl');
const adapter = new factory.SequelizeAdapter();
factory = factory.factory;
factory.setAdapter(adapter);

let dir = path.join(__dirname, 'lib');

// For each file in lib directory
fs.readdirSync(dir).forEach((file) => {

  // Only process JS files
  if (file[0] !== '.' && _.endsWith(file, '.js')) {
    let basename = path.basename(file, '.js');
    let mod = require(path.join(dir, basename));

    // Call exported function with our defined factory
    mod(factory);
  }
});

module.exports = factory;

and my factory as follows:

// Common libs
const casual = require('/casuals');
const Director = require('/models/director.js');

module.exports = (factory) => {
  factory.define('director', Director, {
    name: () => casual.first_name,
    email: () => casual.email,
  });

};

any help is greatly appreciated, thanks !

[simonexmachina]

The important part here is Director, but you haven't posted the contents of /models/director.js. Also, you probably want ./models/director.js, because a file path that starts with / is in the root of your filesystem.

[jrcastillo]

Sorry my bad, I thought I had posted it. Here is the content of Director.js:

'use strict';

module.exports = (sequelize, DataTypes) => {
  const director = sequelize.define('director', {
    name: {
      type: DataTypes.STRING,
      allowNull: false
    },
    email: {
      type: DataTypes.STRING,
      allowNull: false
    }
  }, {
    classMethods: {
      associate: (models) => {
        director.hasMany(models.school, {
          foreignKey: {
            allowNull: false
          }
        })
      }
    }
  })
  return director
}

[simonexmachina]

Okay, so ./models/director.js returns a function, not a constructor. So you need:

const Director = require('/models/director.js')(sequelize, DataTypes);

[jrcastillo]

Thanks man ! worked like a charm