module.exports = (sequelize, DataTypes) => { let Sequelize = sequelize.Sequelize let PollQuestion = sequelize.define('PollQuestion', { question: { type: DataTypes.STRING, allowNull: false, validate: { len: { args: [1, 256], msg: 'The question must be between 1 and 256 characters' }, isString (val) { if(typeof val !== 'string') { throw new Sequelize.ValidationError('The question must be a string') } } } } }, { classMethods: { associate (models) { PollQuestion.belongsTo(models.User) PollQuestion.hasMany(models.PollAnswer) PollQuestion.hasMany(models.PollVote) } } }) return PollQuestion }