我需要根据用户的输入有条件地插入数据库
这是我的功能到目前为止的样子：
ManageBillsRepo.prototype.addBill=function (billObj,billServices, memberships, prepaidCards, customPackages) {
var qryToInsertSalonBills="INSERT INTO salon_client_billing SET ?"
var qryToInsertBillServices="INSERT INTO salon_appointment_billing_services (bill_id, service_id, service_quantity,service_beautician_id, type) VALUES ?";
var qryToInsertMembership="INSERT INTO salon_client_memberships SET ?";
var qryToInsertCustomPackge="INSERT INTO salon_client_customPackage SET ?";
var qryToInsertPrepaidCard="INSERT INTO salon_client_prepaidCard SET ? ";
return fn.defer(webocitySalonPOSConnection.query , webocitySalonPOSConnection)(qryToInsertSalonBills, billObj).to(function (resAddBill) {
console.log("bill services", billServices)
let toSaveObjArr = billServices.reduce(function (acc, val) {
let temp = [];
temp.push(resAddBill.insertId);
temp.push(val.service_id);
temp.push(val.service_quantity);
temp.push(val.service_beautician_id);
temp.push(val.type)
acc.push(temp);
return acc;
}, []);
if(memberships && memberships.length > 0){
let toSaveMembershipsArr = memberships.reduce(function (acc, val) {
console.log("val", val)
let temp = [];
temp.push(resAddBill.insertId);
temp.push(billObj.client_id);
temp.push(billObj.salon_id);
temp.push(val.membership_id);
temp.push(val.redeemable_amount)
acc.push(temp);
return acc;
}, []);
console.log("memberships are", toSaveMembershipsArr)
return fn.defer(webocitySalonPOSConnection.query , webocitySalonPOSConnection)(qryToInsertMembership,[toSaveMembershipsArr] ).to(function (resAddMems) {
console.log("resAddMems", resAddMems)
return resAddMems
});
}
if(customPackages && customPackages.length > 0){
let toSaveCustomPackagesArr = customPackages.reduce(function (acc, val) {
console.log("val", val)
let temp = [];
temp.push(resAddBill.insertId);
temp.push(billObj.client_id);
temp.push(billObj.salon_id);
temp.push(val.services);
acc.push(temp);
return acc;
}, []);
console.log("customPackages are", toSaveCustomPackagesArr)
return fn.defer(webocitySalonPOSConnection.query , webocitySalonPOSConnection)(qryToInsertCustomPackge,[toSaveCustomPackagesArr] ).to(function (resAddBillServices) {
});
}
if(prepaidCards && prepaidCards.length > 0){
let toSaveprepaidCardsArr = prepaidCards.reduce(function (acc, val) {
console.log("val", val)
let temp = [];
temp.push(billObj.invoice_number);
temp.push(billObj.client_id);
temp.push(billObj.salon_id);
temp.push(val.prepaidcard_id);
temp.push(val.redeemable_amount)
acc.push(temp);
return acc;
}, []);
console.log("prepaidCards are", toSaveprepaidCardsArr)
return fn.defer(webocitySalonPOSConnection.query , webocitySalonPOSConnection)(qryToInsertPrepaidCard,[toSaveprepaidCardsArr] ).to(function (resAddBillServices) {
});
}
return fn.defer(webocitySalonPOSConnection.query , webocitySalonPOSConnection)(qryToInsertBillServices,[toSaveObjArr] ).to(function (resAddBillServices) {
return resAddBill;
});
});
};
但是，在这种情况下，我不打算在第一次插入后return，并跳过返回时发生的情况。实现这一目标的最佳途径是什么？
defer函数供参考：
function defer(fn, parent) {
return function () {
var args = Array.prototype.slice.call(arguments, 0);
return deferred.defer(function (callbacks) {
function callback(err, result) {
if (err) {
callbacks.failure(err);
} else {
callbacks.success(result);
}
}
args.push(callback);
fn.apply(parent, args);
});
};
}