1. When data.length=3, only 2 pieces of data are stored in the database, is it because the callback function is written wrong?
function insertData (data) {
var events = [];
var count = 0;
for (var i = 0; i < data.length; iPP) {
(function(i){
var obj = data[i];
function insert(callback){
countPP;
console.log(count);
_getNewSN({
query : {category : "ProjectOID_" + obj.ProjectOID},
success : function(sn){
var param = [
parseInt(obj.FunctionCode) ,
parseInt(obj.StartRegister) ,
parseInt(obj.Length) ,
obj.Description,
obj.ProjectHardwareOID ,
sn.SN];
var sql = "insert into " +
"plcModbusTCPDB(FunctionCode,StartRegister," +
"Length,Description,ProjectHardwareOID," +
"DataID) values(?,?,?,?,?,?)";
yjDBService.exec({
sql:sql,
parameters : param,
success : sender.success,
error : sender.error
});
callback(null,obj);
},
error : sender.error
})
}
events.push(insert);
})(i)
}
async.waterfall(events,function(err,result){
if(err){
sender.error(err);
}else{
sender.success(result);
}
})
}-sharp-sharp-sharp
the environmental background of the problems and what methods you have tried
related codes
/ / Please paste the code text below (do not replace the code with pictures)