mvanrijnen
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Everything posted by mvanrijnen
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then use the function DateTimeToStr and StrToDateTime with the format options, already mentioned before. i would be sure then, to keep a fixed format in the database if it has to be a string like YYYYMMNNHHNNSS, or use ISO8601 to store and retrieve. but keep the points of conversion as minimum as possible, there will be a point where it's gonna bite you, been there, done that 🙂 But at the end, it's something you have to figure out yourself. I would go back and take a look if you can change the >>> DateTimeToStr(FileInfo.TimeStamp)); >>> this to tree > to DB to FileInfo.TimeStamp----->Database ------>Visualize DateTimeToStr()
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Why keep converting a Date(Time) to a string, keep it a a date and let FireDac worry about the conversion to the correct db format. (as said before, keep away from datetime to string conversion (or viceversa) with something like this) What code you now have, the whole SQL statement and the assignment of parameter values?
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take a look at: System.SysUtils.FileDateToDateTime - RAD Studio API Documentation (embarcadero.com) (assuming you get the filedatetime with a standard delphi function).
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just for the example: var myDate : TDate; begin myDate := EncodeDate(2021, 10, 3); .... // Make sure that myDate only contains the Date part, even when you declare a var as TDate it still can contain a time part !! // so thats why i make sure in the assignment, it depends on you own code if you need the DateOf() here. FDQuery2.Params.ParamByName('MyDateFrom').AsDate := DateOf(myDate); FDQuery2.Params.ParamByName('MyDateTill').AsDate := IncDay(DateOf(myDate)); ..... end;
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haha, the StrToDate shit, is just taken from the topicstart, ofcourse in realworld we do not use this in realcode.
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FDQuery2.SQL.Add('Select * from Projects'); FDQuery2.SQL.Add('WHERE MyDateTime>=:MyDateFrom'); FDQuery2.SQL.Add(' AND MyDateTime<:MyDateTill'); FDQuery2.SQL.Add('ORDER BY MyDateTime'); FDQuery2.Params.ParamByName('MyDateFrom').AsDate := StrToDate('03/10/2021')); FDQuery2.Params.ParamByName('MyDateTill').AsDate := IncDay(StrToDate('03/10/2021')); FDQuery2.Open; please keep forum in english.
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or use COALESCE In interbase we don't have ISNULL(MyInt, 0) function, but we do have COALESCE which seems to do the same thing ?
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Did you change "HKEY_CURRENT_USER\Software\Embarcadero\BDS\21.0\LSP" to "HKEY_CURRENT_USER\Software\Embarcadero\BDS\22.0\LSP" ?
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I have a helper for this kind of stuff (in real the helper contains some more methods : ) : TMyFieldHelper = class helper for TField public function AsIntegerDef(const ADefault : integer) : integer; end; function TMyFieldHelper.AsIntegerDef(const ADefault: integer): integer; begin Result := ADefault; try if (not Self.IsNull) then Result := Self.AsInteger; except {TODO -oOwner -cGeneral : check which to swallow ... } // swallow any exception end; end;
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Look impressive ! Especially the zooming looks good.
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Enabling One-Click in Delphi 11 Welcome Page
mvanrijnen replied to Uwe Raabe's topic in Delphi IDE and APIs
i already could click them? Ah, see it now 😉 Good tip! -
RAD Studio 11 Alexandria is now available
mvanrijnen replied to Darian Miller's topic in General Help
ah full 4k support, time to ask the boss for new monitors 🙂 -
RAD Studio 11 Alexandria is now available
mvanrijnen replied to Darian Miller's topic in General Help
Installed it on notebook running Windows 11 Beta. Plain installation went ok, no exception orso, simple test projects are running ok. tomorrow test the codecompletion somewhat more. -
What everyhing else do you put under source control, apart from Delphi projects?
mvanrijnen replied to Mike Torrettinni's topic in General Help
Database DDL's -
Same project different platform base executable
mvanrijnen replied to Clément's topic in Delphi IDE and APIs
see also: delphi - XE4: How to change exe output name base on platform? - Stack Overflow -
StrToFloat () all combinations of decimal separator and lang. settings
mvanrijnen replied to bernhard_LA's topic in Algorithms, Data Structures and Class Design
Yes i have had the same, with invoice recognition software i wrote. And then you have the suppliers where the financial formats differ from the "data/content" format. So we had a base setting for the numeric formats per application, per supplier (inherited), per content fields/table (inherited). -
Somehow inserting code goes wrong sometime, my text of my post disappeared. You just need the EMS.ResourceAPI in your uses and then you can use the TEMSEndPointEnvironment.Instance.LogMessage('your log text'); In debugmode (running your RADServer package from the IDE), the logging goes into the radserver console window, where the radserver itself also logs. We are not in production yet, so i do not know at the moment where the logging goes in a production environment 🙂 I use this in a logging framework, which also can log to file, database etc etc. Did not see the TEMSLoggingService before, have to inspect that, maybe it's the better way to work. [edit, added first code for the emsloggingservice) so, first tryout for the loggingservice: unit .......; interface uses ..... EMS.Services; type THSLoggerRADServerDebugTargetQueue = class(THSLoggerBaseTargetQueue) private femslogsvc : IEMSLoggingService; protected function HandleTargetItem(const AItem: THSLLoggerItem): Boolean; override; public procedure DoBeforeStart; override; procedure DoAfterStop; override; {TODO -oOwner -cGeneral : CheckCanStart wordt helemaal niet aangeroepen ???? } procedure CheckCanStart(var ACanStart: Boolean; var AMessage: string); override; end; implementation uses ....., EMS.ResourceAPI; { THSLoggerRADServerDebugTargetQueue } procedure THSLoggerRADServerDebugTargetQueue.CheckCanStart(var ACanStart: Boolean; var AMessage: string); begin inherited; ACanStart := True; end; procedure THSLoggerRADServerDebugTargetQueue.DoAfterStop; begin femslogsvc := nil; inherited; end; procedure THSLoggerRADServerDebugTargetQueue.DoBeforeStart; begin femslogsvc := nil; inherited; if TEMSServices.TryGetService<IEMSLoggingService>(femslogsvc) then begin if not femslogsvc.LoggingEnabled then begin femslogsvc := nil; end; end; end; function THSLoggerRADServerDebugTargetQueue.HandleTargetItem(const AItem: THSLLoggerItem): Boolean; var obj : TJSONObject; begin inherited; Result := False; try if Assigned(femslogsvc) then begin obj := TJSONObject.Create(); obj.AddPair('user', AItem.UserName); obj.AddPair('computer', AItem.ComputerName); obj.AddPair('datetime', DateToISO8601(AItem.DateTime)); obj.AddPair('message', AItem.LogMessage); obj.AddPair('position', AItem.Position); femslogsvc.Log(AItem.LogType.AsString, obj); end; Result := True; except on e: exception do begin // DebugLog('xx', 'xxxx'); end; end; end; end.
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unit MyUnit; interface {$IFDEF RADSERVER_PACKAGE} uses ..... EMS.ResourceAPI; type THSLoggerRADServerDebugTargetQueue = class(THSLoggerBaseTargetQueue) protected function HandleTargetItem(const AItem: THSLLoggerItem): Boolean; override; public end; {$ENDIF} implementation {$IFDEF RADSERVER_PACKAGE} { THSLoggerRADServerDebugTargetQueue } function THSLoggerRADServerDebugTargetQueue.HandleTargetItem(const AItem: THSLLoggerItem): Boolean; var line: string; begin inherited; ..... TEMSEndpointEnvironment.Instance.LogMessage(line); .... end; {$ENDIF} end.
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If you want to prevent doubleclicking by users who still don't know the difference between single and double click (yes, they are still around, we have some overhere 🙂 ), we use a simple trick. (Yelling to the users don't work 🙂 ) You set a timer on enabled in the onclick, something like (at start of program you set the interval to like 250 orso,). not a beauty, but it works here. (not exact code we use, but similar just out of the head): const CNST_PREVEN_DOUBLECLICK_INTERVAL_MSECS = 250; procedure TForm1.Button1Click(Sender : TObject); begin if not Button1Timer.Enabled then begin Button1Timer.Interval := CNST_PREVEN_DOUBLECLICK_INTERVAL_MSECS; Button1Timer.Enabled := True; DoButton1Code(); end; end; procedure TForm1.Button1TimerTimer(Sender : TObject); begin Botton1Timer.Enabled := False; end; [/code] maybe just use a "global" var, to remember lasttime clicked, and compare msecs to that could also be possible.
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Isn't that why we have submenus ? (although they are an extra click away).
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upcoming language enhancements?
mvanrijnen replied to David Schwartz's topic in RTL and Delphi Object Pascal
The classic code is unusable in big projects with many lines of sourcecode, and causes the IDE completely unusable. We have to choose between to bad options. Third option is disable all function in the IDE. Thats not why we pay a lot of money each year. Big problem is they bring updates which do not fix the bugs they say they do. So apparently they have to little people working on the product, or just shit on their customers. -
upcoming language enhancements?
mvanrijnen replied to David Schwartz's topic in RTL and Delphi Object Pascal
Only the updates did not fix the problems they supposed to do. LSP/Codecompletion malfunctioning. If i look the the bugs which are still open and/or being reported it does not sound like a reasonable finished product. Like delivering a car from which the weels unexpected fall of. If you'r lucky you don't have a problem, i you'r unlucky you end the day after a few hours withouth wheels. Refactoring which stops working, suddenly freezes of the IDE, suddenly exiting of the IDE, making a mess of project files etc etc. Inserting events wrong in the sourcecoude (doubleclicking an event in the property inspector), i can go on and on. Very slow "getit" a failed ripoff from the packagemanagement from other IDE's, not working GetIt sometimes. -
Delphi Daily WTF / Antipattern / Stupid code thread
mvanrijnen replied to Tommi Prami's topic in RTL and Delphi Object Pascal
Leaving Delphi 7, and keep hoping on a reasonable release of D10 was the biggest mistake for most Delphi programmers i think. 🙂 -
upcoming language enhancements?
mvanrijnen replied to David Schwartz's topic in RTL and Delphi Object Pascal
I think all communication budget from EMB is spend by the marketeers who are putting out the worthless blogs. @Marco Cantu We did not get an invite for the Beta, nice window to subscribe by the way, 3 days???, called , we would get an invite a week ago, still no email from EMB. I really don't think they are gonna make it for long with this kind of attitude towards their customers. Why not publish some details about the coming Delphi 11 ? When we get a decent version of 10.4 ? -
Parsing Text search expression
mvanrijnen replied to Mike Torrettinni's topic in Algorithms, Data Structures and Class Design
Would be nice to have a common parser what you posted in your startpost, something with a base class which does the basic parsing of the query, and which can be extended in execution functionality .