"use strict";

module.exports = function(sequelize, DataTypes) {
	//The id field is auto added and made primary key.
	var Sale = sequelize.define('Sale', {
		id: {
			type: DataTypes.INTEGER,
            primaryKey: true,
            allowNull: false,
			autoIncrement: true
		},
		date: {
			type: DataTypes.DATEONLY,
			allowNull: false
		},
		amount: {
			type: DataTypes.DECIMAL(13,2),
			allowNull: false
		},
		price: {
			//GAAP standard is to use DECIMAL(13,4) for precision when dealing with money.  13 digits before the decimal, and 4 after it.
			type: DataTypes.DECIMAL(13,4),
			allowNull: false
		},
		createdAt: {
			type: DataTypes.DATE,
			allowNull: false
		},
		updatedAt: {
			type: DataTypes.DATE,
			allowNull: false
		}
	}, {
		freezeTableName: true, // Model tableName will be the same as the model name
		paranoid: false,
        classMethods: {
            associate: function(models) {
                Sale.belongsTo(models.Item, {as: 'item', foreignKey: {name: 'itemId', field: 'itemId'}});
	            Sale.belongsTo(models.Venue, {as: 'venue', foreignKey: {name: 'venueId', field: 'venueId'}});
	            Sale.belongsTo(models.Measure, {as: 'measure', foreignKey: {name: 'measureId', field: 'measureId'}});
            }
        }
	});
	
	return Sale;
};