How long is a deal stored on the server?

Artyom Trishkin 2023.10.21 07:57 #51

MrBrooklin OnTick() function or after it? If it is fundamental, why?
Regards, Vladimir.

Good. There is no difference. At least in the plugin file.

MrBrooklin 2023.10.21 09:11 #52

Artyom Trishkin #:

Good. There's no difference. It can be in a plug-in file.

I see. Thank you!

Regards, Vladimir.

MrBrooklin 2023.10.21 13:17 #53

Artyom Trishkin #:

The data is stored on the server. The terminal receives them into its environment and the Expert Advisor then uses them.

Artem, I'm probably torturing you with my stupidity, but how long is the data on a deal stored on the server? A day, two, three... a year? I've read both literature and reference book, and I haven't found this information anywhere.

Regards, Vladimir.

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Alexey Viktorov 2023.10.21 13:25 #54

MrBrooklin #:

Artem, I'm probably boring you with my stupidity, but the transaction data is stored on the server for how long? A day, two, three... a year? I have read the literature and the handbook, and I have not found this information anywhere.

Regards, Vladimir.

Vladimir, why do you need it? This data is needed only for solving some disputable moments. But if a broker does something fancy, it is unlikely that he will be able to prove anything. And the specific storage time is set by the broker himself and there is no regulation on this.

Is that possible? What's new in MetaTrader Forex broker and regulation

MrBrooklin 2023.10.21 13:29 #55

Alexey Viktorov #:

Vladimir, why do you need it? This data is needed only for solving some disputable points. But if the broker does something fancy, it is unlikely that he will be able to prove anything. And the specific storage time is set by the broker himself, and there is no regulation on this.

Hi Alexey, I need to know this for self-education and, at the same time, I want to understand it thoroughly. I don't seem to understand these transactions at all. When I listened to you, everything seemed to be clear, but a little time passed and everything dissolved. Here we go again! I don't understand anything at all!

Regards, Vladimir.

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MrBrooklin 2023.10.21 13:48 #56

Let me give you a live example. I have an open position for the weekend. Here is a screenshot from my live account:

The transaction is made, the position is open. I run the script:

//+------------------------------------------------------------------+
//|1.mq5 |
//|Copyright 2023, MetaQuotes Ltd. |
//| https://www.mql5.com |
//+------------------------------------------------------------------+
#property copyright "Copyright 2023, MetaQuotes Ltd."
#property link      "https://www.mql5.com"
#property version   "1.00"
ulong pos_ticket;
double pos_open;
//+------------------------------------------------------------------+
//||
//+------------------------------------------------------------------+
void  OnTradeTransaction(
   const MqlTradeTransaction&    trans,   // trade transaction structure
   const MqlTradeRequest&        request, // request structure
   const MqlTradeResult&         result   // response structure
)
  {
   if(trans.type==TRADE_TRANSACTION_DEAL_ADD)
     {
      if(HistoryDealSelect(trans.deal) && HistoryDealGetInteger(trans.deal,DEAL_ENTRY)==DEAL_ENTRY_IN)
        {
         pos_ticket=trans.position;
         pos_open=trans.price;
        }
     }
  }
//+------------------------------------------------------------------+
//| Script programme start function|
//+------------------------------------------------------------------+
void OnStart()
  {
//---
   Print("Ticket = ",pos_ticket);
   Print("Price = ",pos_open);
  }
//+------------------------------------------------------------------+

I get the result in the Experts tab:

2023.10.21 14:41:47.693 1 (EURUSDrfd,M1)        Ticket = 0
2023.10.21 14:41:47.693 1 (EURUSDrfd,M1)        Price = 0.0

Artyom wrote that the deal is stored on the server, but did not say how long it is stored, and in fact it is not visible now. How so? I am trying to figure it out to the end.

Regards, Vladimir.

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Alexey Viktorov 2023.10.21 14:37 #57

MrBrooklin #:

Let me give you a live example. I have an open position for the weekend. Here is a screenshot from my live account:

The transaction is made, the position is open. I'm running the script:

I get the result in the Experts tab:

Artem wrote that the deal is stored on the server, but did not tell me how long it is stored, and in fact it is not visible now. How so? I am trying to figure it out to the end.

Regards, Vladimir.

You have run a script.

void OnStart()
  {
   Print("DateTime = ", TimeCurrent());
  }

It is an EVENT. If you ran the script yesterday, you got the printout yesterday. And today there will be no printout with yesterday's date and yesterday's time. If you run the script today, it will be an event again. And again you will get a printout with the current date and time.

A knock on the head, that's an event. And tomorrow you will feel nothing from yesterday's TUK.....

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MrBrooklin 2023.10.21 14:38 #58

And this is how the script finds the position and the data I need without problems:

//+------------------------------------------------------------------+
//|2.mq5 |
//|Copyright 2023, MetaQuotes Ltd. |
//| https://www.mql5.com |
//+------------------------------------------------------------------+
#property copyright "Copyright 2023, MetaQuotes Ltd."
#property link      "https://www.mql5.com"
#property version   "1.00"
//+------------------------------------------------------------------+
//| Script programme start function|
//+------------------------------------------------------------------+
void OnStart()
  {
//---
   for(int i=0; i<PositionsTotal(); i++)
     {
      if(PositionGetTicket(i))
         Print("Ticket = ",PositionGetInteger(POSITION_IDENTIFIER));
         Print("Price = ",PositionGetDouble(POSITION_PRICE_OPEN));
     }
  }
//+------------------------------------------------------------------+

Result:

2023.10.21 15:33:49.973 2 (EURUSDrfd,M1)        Ticket = 1029935900
2023.10.21 15:33:49.973 2 (EURUSDrfd,M1)        Price = 1.05...

It does not matter whether the market was open or closed, whether there was a power outage or not, whether there was an internet outage or not, this variant works without fail. However, for this purpose we have to run a cycle, which, according to experts, slows down the execution of the programme.

Regards, Vladimir.

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MrBrooklin 2023.10.21 14:44 #59

Alexey Viktorov #:

A knock on the head, that's an event. And tomorrow you won't feel anything from yesterday's tuk tuk.....

It turns out that a deal in the history is stored on the server only until the end of the trading session? Is it so?

Regards, Vladimir.

MrBrooklin 2023.10.21 14:49 #60

Stop! And how, then, after one trading day the Expert Advisor still saw this trade (i.e. an open position) and worked according to the algorithm? No, it's a hell of a thing!

Regards, Vladimir.

Is anyone able to On the unequal probability Pls help me.

Discussing the article: "Trade transactions. Request and response structures, description and logging" - page 6