mORMot Open Source

AntonE

Member

Registered: 2012-02-03

Posts: 74

Need imported data reference...from unit SynCommons

I'm trying to build a custom format for LiveBindings to display ISO8601 (Don't know if it's needed, but good exercise)

It is basically a package that you need to compile/install into IDE, but I get error in subject when I try to compile.
Some reading suggest a rebuild with {$G+} or {$IMPORTEDDATA ON} but it does not work.

Thanks

unit ISO8601ToStrMethod;

interface

implementation

{$IMPORTEDDATA ON}
uses System.Bindings.Methods, System.SysUtils, MethodUtils,SynCommons,DateUtils;

const
  sIDIso8601ToStr = 'Iso8601ToStr';
  sIDStrToIso8601 = 'StrToIso8601';

procedure RegisterMethods;
begin
  TMethodUtils.RegisterMethod<Iso8601,string>(sIDIso8601ToStr,
    function(AValue: Iso8601): string
    begin
      Result := DateTimeToStr(AValue.ToDateTime);
    end);

  TMethodUtils.RegisterMethod<string,Iso8601>(sIDStrToIso8601,
    function(AValue: string): ISO8601
    var D : TDateTime;
        I : Iso8601;
    begin
     try
      D := StrToDateTime(AValue);
      PIso8601(@I)^.From(D);
      Result:=I;
     finally
      Result.Value:=0;
     end;
    end);
end;

procedure UnregisterMethods;
begin
  TBindingMethodsFactory.UnRegisterMethod(sIDIso8601ToStr);
  TBindingMethodsFactory.UnRegisterMethod(sIDStrToIso8601);
end;

initialization
  RegisterMethods;
finalization
  UnregisterMethods;
end.

AntonE

Member

Registered: 2012-02-03

Posts: 74

Re: Need imported data reference...from unit SynCommons

I might add that it is done with a simple package that can be found on this aritcle:
http://www.malcolmgroves.com/blog/?p=1226

But here is a direct link:
https://github.com/malcolmgroves/delphi-samples.git/

Here is a simple working folder/project that can just be extracted/compiled to see error:
ftp://ftp.true.co.za/CustomFormats.zip

Last edited by AntonE (2013-03-04 11:09:33)

ab

Administrator

From: France

Registered: 2010-06-21

Posts: 14,238

Website

Re: Need imported data reference...from unit SynCommons

Did you try define USEPACKAGES conditional to help compiling the unit within packages, as defined in SynCommons.ini ?

You can set this conditional at the package project level.

AntonE

Member

Registered: 2012-02-03

Posts: 74

Re: Need imported data reference...from unit SynCommons

Thank you i tried to add to project but did not work, so I just put it in SynCommons to get it compiled and it worked.

If this is what you meant:

package MGCustomLiveBindingMethods;

{$R *.res}
{$IFDEF IMPLICITBUILDING This IFDEF should not be used by users}
{$ALIGN 8}
{$ASSERTIONS ON}
{$BOOLEVAL OFF}
{$DEBUGINFO ON}
{$EXTENDEDSYNTAX ON}
{$IMPORTEDDATA ON}
{$IOCHECKS ON}
{$LOCALSYMBOLS ON}
{$LONGSTRINGS ON}
{$OPENSTRINGS ON}
{$OPTIMIZATION OFF}
{$OVERFLOWCHECKS OFF}
{$RANGECHECKS OFF}
{$REFERENCEINFO ON}
{$SAFEDIVIDE OFF}
{$STACKFRAMES ON}
{$TYPEDADDRESS OFF}
{$VARSTRINGCHECKS ON}
{$WRITEABLECONST OFF}
{$MINENUMSIZE 1}
{$IMAGEBASE $400000}
{$DEFINE DEBUG}
{$ENDIF IMPLICITBUILDING}
{$IMPLICITBUILD ON}
{$DEFINE USEPACKAGES}

requires
  rtl,
  bindengine;

contains
  ISO8601ToStrMethod in 'ISO8601ToStrMethod.pas',
  MethodUtils in 'MethodUtils.pas',
  SynCommons in '..\..\..\..\SynCommons.pas';