module.exports = mongoose => { var schema = mongoose.Schema( { repair_date: String, site: Number, repair_description: String, repair_price: String, repair_location: String, vehicle: String, create_date: Date }, { collection: 'vehicle_repair', timestamps: true } ); schema.method("toJSON", function() { const { __v, _id, ...object } = this.toObject(); object.id = _id; return object; }); schema.index({tag: 1, site:1}, {unique: true}); const VehicleRepair = mongoose.model("vehicle_repair", schema); return VehicleRepair; };