Accessing other models in a Sequelize model hook function

Question

I'm trying to create a model hook that automatically creates an associated record when the main model has been created. How can I access my other models within the hook function when my model file is structured as follows?

/**
 * Main Model
 */
module.exports = function(sequelize, DataTypes) {

  var MainModel = sequelize.define('MainModel', {

    name: {
      type: DataTypes.STRING,
    }

  }, {

    classMethods: {
      associate: function(models) {

        MainModel.hasOne(models.OtherModel, {
          onDelete: 'cascade', hooks: true
        });

      }
    },

    hooks: {

      afterCreate: function(mainModel, next) {
        // ------------------------------------
        // How can I get to OtherModel here?
        // ------------------------------------
      }

    }

  });


  return MainModel;
};

Answer 1

You can access the other model through sequelize.models.OtherModel.

Answer 2

You can use this.associations.OtherModel.target.

/**
 * Main Model
 */
module.exports = function(sequelize, DataTypes) {

  var MainModel = sequelize.define('MainModel', {

    name: {
      type: DataTypes.STRING,
    }

  }, {

    classMethods: {
      associate: function(models) {

        MainModel.hasOne(models.OtherModel, {
          onDelete: 'cascade', hooks: true
        });

      }
    },

    hooks: {

      afterCreate: function(mainModel, next) {
        /**
         * Check It!
         */
        this.associations.OtherModel.target.create({ MainModelId: mainModel.id })
        .then(function(otherModel) { return next(null, otherModel); })
        .catch(function(err) { return next(null); });
      }

    }

  });


  return MainModel;
};