working changes to use sequelize auto index

models/Cause.js

@@ -0,0 +1,11 @@
+module.exports = (sequelize, DataTypes) => {
+	const Cause = sequelize.define('Cause', {
+		id: {
+			type: DataTypes.INTEGER,
+			primaryKey: true,
+			autoIncrement: true
+		},
+		name: { type: DataTypes.STRING, allowNull: false, unique: true }
+	});
+	return Cause;
+};