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{
    $Id: mtest.pp,v 1.5 2005/02/14 17:13:12 peter Exp $
    This file is part of the Free Pascal run time library.
    Copyright (c) 1999-2000 by the Free Pascal development team
     <What does this file>
 
    See the file COPYING.FPC, included in this distribution,
    for details about the copyright.
     This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 
 **********************************************************************}{$mode objfpc}
{$H+}
program mtest;
 
uses db,sysutils, mysqldb4; // change to mysqldb3 if you are using version 3. 
Procedure Log(Const Msg : String);
begin
  Writeln(Msg);
end; 
Procedure DumpFieldDef(F : TfieldDef);
 
begin
  With F do    begin
    Writeln ('Name              : ',Name);
    Writeln ('FieldNo           : ',FieldNo);
    Writeln ('Size              : ',Size);
    Writeln ('FieldClass        : ',FieldClass.ClassName);    Writeln ('Required          : ',required);
    Writeln ('Precision         : ',Precision);
    Writeln ('DataType          : ',FieldTypeNames[DataType]);
    Writeln ('InternalCalcField : ',Internalcalcfield);
    end;end;
 
Procedure DumpField(F : Tfield);
 
begin  With F do
    begin
    Writeln ('FieldName : ',FieldName);
    Writeln ('FieldNo   : ',FieldNo);
    Writeln ('Index     : ',Index);    Writeln ('DataSize  : ',DataSize);
    Writeln ('Size      : ',Size);
    Writeln ('DataType  : ',FieldTypeNames[DataType]);
    Writeln ('Class     : ',ClassName);
    Writeln ('Required  : ',required);    Writeln ('ReadOnly  : ',ReadOnly);
    Writeln ('Visible   : ',Visible);
    end;
end;
 Procedure DumpFieldData (F : TField);
 
begin
  With F Do
    begin    Writeln ('Field     : ',FieldName);
    Writeln ('Data type : ',FieldTypeNames[DataType]);
    Writeln ('As String : ',Asstring);
    Case Datatype of
      ftSmallint, ftInteger, ftWord : Writeln ('As longint : ',AsLongint);      ftBoolean : Writeln ('As Boolean : ',AsBoolean);
      ftFloat : Writeln ('As Float : ',AsFloat);
      ftDate, ftTime, ftDateTime : Writeln ('As DateTime : ',DateTimeToStr(AsDateTime));
    end;
    end;end;
 
Var
  Dbase : TMySQLDatabase;
  Data : TMysqldataset;  I,Count : longint;
  Bookie : TBookMarkStr;
 
Procedure ScrollForward;
 begin
  Writeln ('Browsing Forward:');
  Writeln ('------------------');
  With Data do
    While NOT EOF do      begin
      For I:=0 to FieldCount-1 do
        DumpFieldData(Fields[I]);
      Next;
      end;end;
 
Procedure ScrollBackWard;
 
begin  Writeln ('Browsing Backward:');
  Writeln ('-------------------');
  With Data do
    While NOT BOF do
      begin      For I:=0 to FieldCount-1 do
        DumpFieldData(Fields[I]);
      Prior;
      end;
end; 
begin
  if paramcount<>4 then
    begin
    Writeln ('Usage : mtest db user pwd sql');    Halt(1);
    end;
  Log ('Creating Database');
  DBase:=TMySQLDatabase.Create(Nil);
  Try    With DBase do
      begin
      Log('Setting database');
      DatabaseName:=Paramstr(1);
      Log('Setting user');      UserName:=Paramstr(2);
      Log('Setting password');
      PassWord := Paramstr(3);
      Log('Connecting');
      Connected:=True;      end;
    Log ('Creating Dataset');
    Data:=TMysqlDataset.Create(Nil);
    With Data do
      Try        Log('Setting database property');
        Database:=DBase;
        Log('Setting SQL');
        SQL.text := Paramstr(4);
        Log('Opening Dataset');        Open;
        Log('Dumping fielddefs : ');
        Writeln ('Fielddefs count : ',FieldDefs.Count);
        For I:=0 to FieldDefs.Count-1 do
          DumpFieldDef(FieldDefs.Items[i]);        Writeln ('Fields count : ',FieldCount);
        For I:=0 to FieldCount-1 do
          DumpField(Fields[i]);
        ScrollForward;
        ScrollBackWard;        Writeln ('Going to last :');
        writeln ('---------------');
        Last;
        ScrollBackWard;
        ScrollForward;        Writeln ('Going to first:');
        First;
        Count:=0;
        Writeln ('Browsing Forward:');
        Writeln ('------------------');        With Data do
          While NOT EOF do
            begin
            Inc(Count);
            If Count=recordCount div 2 then              begin
              Writeln ('Setting bookmark on record');
              Bookie:=Bookmark;
              Writeln ('Got data : "',Bookie,'"');
              end;            For I:=0 to FieldCount-1 do
              DumpFieldData(Fields[I]);
            Next;
            end;
        Writeln ('Jumping to bookmark',Bookie);        BookMark:=Bookie;
        Writeln ('Dumping Record : ');
          For I:=0 to FieldCount-1 do
            DumpFieldData(Fields[I]);
        Next;        Writeln ('Dumping Next Record : ');
        For I:=0 to FieldCount-1 do
          DumpFieldData(Fields[I]);
        Prior;
        Prior;        Writeln ('Dumping Previous Record : ');
        For I:=0 to FieldCount-1 do
          DumpFieldData(Fields[I]);
        Log('Closing Dataset');
        Close;        Log('End.');
      Finally
        Free;
      end;
  Finally    Writeln('Freeing database');
    DBase.free;
  end;
end.
 {
   $Log: mtest.pp,v $
   Revision 1.5  2005/02/14 17:13:12  peter
     * truncate log
 }