How to use MyDAC components with FastReport 4.0?

Comments

• EPMS

  May 2009 edited 10:19AM

  Can nobody help me?
• Sir Rufo

  May 2010 edited 10:19AM

  There is a way to use MyDAC, but u need the whole sources to recompile.
  
  U can introduce nearly every Delphi-Objects to FastReport.
  

  {******************************************}
  {                                          }
  {             FastScript v1.9              }
  {        MyDAC classes and functions       }
  {                                          }
  {******************************************}
  
  unit fs_imysrtti;
  
  interface
  
  {$I fs.inc}
  
  uses
    SysUtils, Classes, fs_iinterpreter, fs_itools, fs_idbrtti, db, DBAccess,
    MyAccess, DAScript, MyScript, MemDS;
  
  type
    TfsMYSRTTI = class( TComponent ); // fake component
  
  implementation
  
  type
    TFunctions = class( TfsRTTIModule )
    private
      function CallMethod( Instance : TObject; ClassType : TClass;
        const MethodName : String; Caller : TfsMethodHelper ) : Variant;
  
    public
      constructor Create( AScript : TfsScript ); override;
    end;
  
    { TFunctions }
  
  constructor TFunctions.Create( AScript : TfsScript );
    begin
      inherited Create( AScript );
      with AScript do
        begin
          with AddClass( TDAParam, 'TParam' ) do
          begin
  
          end;
          with AddClass( TDAParams, 'TParams' ) do
          begin
  
          end;
  
          with AddClass( TCustomDAConnection, 'TCustomConnection' ) do
            begin
            end;
  
          with AddClass( TCustomMyConnection, 'TCustomDAConnection' ) do
            begin
            end;
  
          with AddClass( TMyConnection, 'TCustomMyConnection' ) do
            begin
            end;
  
           with AddClass( TMemDataSet, 'TDataSet' ) do
             begin
             end;
  
           with AddClass( TCustomDADataSet, 'TMemDataSet' ) do
             begin
               AddMethod( 'procedure Execute', CallMethod );
               AddMethod( 'function Executing : boolean', CallMethod );
             end;
  
          with AddClass( TCustomMyDataSet, 'TCustomDADataSet' ) do
            begin
            end;
  
          with AddClass( TMyTable, 'TCustomMyDataSet' ) do
            begin
            end;
  
          with AddClass( TMyQuery, 'TCustomMyDataSet' ) do
            begin
            end;
  
          with AddClass( TDAScript, 'TComponent' ) do
          begin
  
          end;
          with AddClass( TMyScript, 'TDAScript' ) do
          begin
  
          end;
  
        end;
    end;
  
  function TFunctions.CallMethod( Instance : TObject; ClassType : TClass;
    const MethodName : String; Caller : TfsMethodHelper ) : Variant;
    begin
      Result := 0;
  
      if ClassType = TCustomDADataSet then
        begin
          if MethodName = 'EXECUTE' then
            TCustomDADataSet( Instance ).Execute;
          if MethodName = 'EXECUTING' then
            RESULT := TCustomDADataSet( Instance ).Executing;
        end;
  
    end;
  
  initialization
  
  fsRTTIModules.Add( TFunctions );
  
  finalization
  
  if fsRTTIModules <> nil then
    fsRTTIModules.Remove( TFunctions );
  
  end.