Category Archives: Delphi

Delphi. Как правильно сложить дату и время?

Posted on 28.04.2018 by Stanislav_Panteleev

Примерно так…

var date:TDate;
    time:TTime;
    dateTime:TDateTime;
...
    dateTime := Trunc(date) + Frac(time);
...

var date:TDate;

time:TTime;

dateTime:TDateTime;

...

dateTime := Trunc(date) + Frac(time);

...

Posted in Delphi | Comments Off

Delphi. Экспорт из базы в Excel через Ole

Posted on 25.04.2018 by Stanislav_Panteleev

Пример из проекта, собирал по всему интернету для себя. Возможно кому-то ещё понадобится.

unit uExportSales;

interface

type
  TExport = class
    procedure ExportRestSalesXLS;
    procedure ExporAlltSalesXLS;
  end;

implementation

uses
  FireDAC.Comp.Client, //
  uDBConnection, System.Win.ComObj, System.AnsiStrings, System.IOUtils, Vcl.Forms,
  Vcl.Graphics, System.SysUtils, System.Variants;

procedure TExport.ExportRestSalesXLS;

  function getCountAlreadyExported(): integer;
  var
    q: TFdquery;
  begin
    q := TFdquery.Create(nil);
    try
      with q do
      begin
        connection := DBConnection_Sales.FDConnection;
        sql.Text := 'SELECT value FROM salesforecast_db.servicetable where name=''salesXLSFileCount'';';
        Disconnect();
        Open();
        result := FieldByName('value').AsInteger;
        Close();
      end;
    finally
      q.free();
    end;
  end;

  function getCountSales(): Integer;
  var
    q: TFdquery;
  begin
    q := TFdquery.Create(nil);
    try
      with q do
      begin
        connection := DBConnection_Sales.FDConnection;
        sql.Text := DBConnection_Sales.qCountSales.SQL.Text;
        Disconnect();
        Open();
        result := FieldByName('countSales').AsInteger;
        Close();
      end;
    finally
      q.free();
    end;
  end;

var
  e: Variant;
  q: TFDQuery;
  countRecAlreadyExported: integer;
  i: integer;
  filePath: string;
  countSales: int64;
begin

  countRecAlreadyExported := getCountAlreadyExported();
  countSales := getCountSales();

  e := CreateOleObject('Excel.Application');
  filePath := ExtractFilePath(Application.ExeName) + 'sales.xlsx';
  if TFile.Exists('sales.xlsx') then
    e.workbooks.open(filePath)
  else
  begin // create new
    e.Workbooks.Add;
    e.columns[1].columnwidth := 24.71;
    e.columns[2].columnwidth := 24.71;
    e.columns[3].columnwidth := 24.71;
    e.columns[4].columnwidth := 24.71;
    e.columns[5].columnwidth := 24.71;
    e.columns[6].columnwidth := 24.71;
    e.columns[7].columnwidth := 24.71;
    e.columns[8].columnwidth := 24.71;
 // e.ActiveWorkBook.WorkSheets[1].Cells[1, 2] := 'Текст ячейки (1,2)';
  //
    e.ActiveSheet.PageSetup.LeftMargin := e.Application.InchesToPoints(0.44);
    e.ActiveSheet.PageSetup.RightMargin := e.Application.InchesToPoints(0.44);
    e.ActiveSheet.PageSetup.TopMargin := e.Application.InchesToPoints(0.44);
    e.ActiveSheet.PageSetup.BottomMargin := e.Application.InchesToPoints(0.44);
  //
    e.Rows[1].font.bold := true;
    e.Rows[1].font.size := 10;
    e.Rows[1].font.color := clBlack;
  // headers...
    e.ActiveWorkBook.WorkSheets[1].cells[1, 1] := 'Дата';
    e.ActiveWorkBook.WorkSheets[1].cells[1, 2] := 'Номер';
    e.ActiveWorkBook.WorkSheets[1].cells[1, 3] := 'Отдел';
    e.ActiveWorkBook.WorkSheets[1].cells[1, 4] := 'Название';
    e.ActiveWorkBook.WorkSheets[1].cells[1, 5] := 'Цена';
    e.ActiveWorkBook.WorkSheets[1].cells[1, 6] := 'Количество';
    e.ActiveWorkBook.WorkSheets[1].cells[1, 7] := 'Сумма';
    e.ActiveWorkBook.WorkSheets[1].cells[1, 8] := 'Устройство';
  //
    countRecAlreadyExported := 0;
  end;

//  e.Visible := true;
  q := TFdquery.Create(nil);
  try
    with q do
    begin
      connection := DBConnection_Sales.FDConnection;
      sql.Text := DBConnection_Sales.qSales.SQL.Text + 'limit ' + countRecAlreadyExported.ToString + ',10000';
      Disconnect();
      Open();
      i := countRecAlreadyExported + 1;
      while not eof do
      begin
        e.ActiveWorkBook.WorkSheets[1].cells[i, 1] := DateTimeToStr(FieldByName('localDate').AsDateTime);
        e.ActiveWorkBook.WorkSheets[1].cells[i, 2] := FieldByName('doubleNumber').AsString;   //doubleNumber
        e.ActiveWorkBook.WorkSheets[1].cells[i, 3] := FieldByName('depName').AsString; // 'Отдел'; //depName
        e.ActiveWorkBook.WorkSheets[1].cells[i, 4] := FieldByName('goodName').AsString; //'Название';
        e.ActiveWorkBook.WorkSheets[1].cells[i, 5] := FormatFloat('0.00', FieldByName('price').AsFloat); //'Цена';
        e.ActiveWorkBook.WorkSheets[1].cells[i, 6] := FieldByName('quantity').AsInteger.ToString(); //'Количество';  //quantity
        e.ActiveWorkBook.WorkSheets[1].cells[i, 7] := FormatFloat('0.00', FieldByName('summ').AsFloat);
        e.ActiveWorkBook.WorkSheets[1].cells[i, 8] := FieldByName('deviceName').AsString; //'Устройство';  //
        inc(i);
        Next();
      end;
      Close();

      //test
      {
      i := i + 1;
      e.ActiveWorkBook.WorkSheets[1].cells[i, 1] := 'test';
      e.ActiveWorkBook.WorkSheets[1].cells[i, 2] := 'test';
      e.ActiveWorkBook.WorkSheets[1].cells[i, 3] := 'test';
      e.ActiveWorkBook.WorkSheets[1].cells[i, 4] := 'test';
      e.ActiveWorkBook.WorkSheets[1].cells[i, 5] := 'test';
      e.ActiveWorkBook.WorkSheets[1].cells[i, 6] := 'test';
      e.ActiveWorkBook.WorkSheets[1].cells[i, 7] := 'test';
      e.ActiveWorkBook.WorkSheets[1].cells[i, 8] := 'test';
      }
      // update countExported
      // UPDATE `salesforecast_db`.`servicetable` SET `value`='10206' WHERE `id`='2';
      q := TFdquery.Create(nil);
      try
        with q do
        begin
          connection := DBConnection_Sales.FDConnection;
          sql.Text := 'UPDATE `salesforecast_db`.`servicetable` SET `value`=:value WHERE `name`=''salesXLSFileCount''';
          params.ParamValues['value'] := countSales;
          ExecSQL;
        end;
      finally
        q.free();
      end;
      //
      e.DisplayAlerts := False;
      e.ActiveWorkbook.SaveAs(ExtractFilePath(Application.ExeName) + 'salesTemp.xlsx');
      e.Application.Quit;
      e := Unassigned;
      TFile.Delete(filePath);
      TFile.Copy(ExtractFilePath(Application.ExeName) + 'salesTemp.xlsx', ExtractFilePath(Application.ExeName) + 'sales.xlsx');
      TFile.Delete(ExtractFilePath(Application.ExeName) + 'salesTemp.xlsx');
    end;
  finally
    q.free();
    //e.DisplayAlerts := False;
    //e.ActiveWorkbook.Save();
    //e.DisplayAlerts := True;
  end;


  // export more records
end;

procedure TExport.ExporAlltSalesXLS;
var
  e: Variant;
  sheet: Variant;
  q: TFDQuery;
  i: integer;
  countSales: int64;
const
  xlContinuous = 1;
  xlThin = 2;
  xlTop = -4160;
  xlCenter = -4108;
begin
  e := CreateOleObject('Excel.Application');
  e.Workbooks.Add;

  e.columns[1].columnwidth := 24.71;
  e.columns[2].columnwidth := 24.71;
  e.columns[3].columnwidth := 24.71;
  e.columns[4].columnwidth := 24.71;
  e.columns[5].columnwidth := 24.71;
  e.columns[6].columnwidth := 24.71;
  e.columns[7].columnwidth := 24.71;
  e.columns[8].columnwidth := 24.71;
 // e.ActiveWorkBook.WorkSheets[1].Cells[1, 2] := 'Текст ячейки (1,2)';
  //
  e.ActiveSheet.PageSetup.LeftMargin := e.Application.InchesToPoints(0.44);
  e.ActiveSheet.PageSetup.RightMargin := e.Application.InchesToPoints(0.44);
  e.ActiveSheet.PageSetup.TopMargin := e.Application.InchesToPoints(0.44);
  e.ActiveSheet.PageSetup.BottomMargin := e.Application.InchesToPoints(0.44);
  //
  e.Rows[1].font.bold := true;
  e.Rows[1].font.size := 10;
  e.Rows[1].font.color := clBlack;
  // headers...
  sheet := e.workbooks[1].worksheets[1];
  e.ActiveWorkBook.WorkSheets[1].cells[1, 1] := 'Дата';
  e.ActiveWorkBook.WorkSheets[1].cells[1, 2] := 'Номер';
  e.ActiveWorkBook.WorkSheets[1].cells[1, 3] := 'Отдел';
  e.ActiveWorkBook.WorkSheets[1].cells[1, 4] := 'Название';
  e.ActiveWorkBook.WorkSheets[1].cells[1, 5] := 'Цена';
  e.ActiveWorkBook.WorkSheets[1].cells[1, 6] := 'Количество';
  e.ActiveWorkBook.WorkSheets[1].cells[1, 7] := 'Сумма';
  e.ActiveWorkBook.WorkSheets[1].cells[1, 8] := 'Устройство';
  //
  q := TFdquery.Create(nil);
  try
    with q do
    begin
      connection := DBConnection_Sales.FDConnection;
      sql.Text := DBConnection_Sales.qCountSales.SQL.Text;
      Disconnect();
      Open();
      countSales := FieldByName('countSales').AsInteger;
      Close();
    end;
  finally
    q.free();
  end;
  //
  q := TFdquery.Create(nil);
  try
    with q do
    begin
      connection := DBConnection_Sales.FDConnection;
      sql.Text := DBConnection_Sales.qSales.SQL.Text;
      params.ParamValues['limit'] := countSales;
      Disconnect();
      Open();
      i := 2;
      while not eof do
      begin
        e.ActiveWorkBook.WorkSheets[1].cells[i, 1] := DateTimeToStr(FieldByName('localDate').AsDateTime);
        e.ActiveWorkBook.WorkSheets[1].cells[i, 2] := FieldByName('doubleNumber').AsString;   //doubleNumber
        e.ActiveWorkBook.WorkSheets[1].cells[i, 3] := FieldByName('depName').AsString; // 'Отдел'; //depName
        e.ActiveWorkBook.WorkSheets[1].cells[i, 4] := FieldByName('goodName').AsString; //'Название';
        e.ActiveWorkBook.WorkSheets[1].cells[i, 5] := FormatFloat('0.00', FieldByName('price').AsFloat); //'Цена';
        e.ActiveWorkBook.WorkSheets[1].cells[i, 6] := FieldByName('quantity').AsInteger.ToString(); //'Количество';  //quantity
        e.ActiveWorkBook.WorkSheets[1].cells[i, 7] := FormatFloat('0.00', FieldByName('summ').AsFloat);
        e.ActiveWorkBook.WorkSheets[1].cells[i, 8] := FieldByName('deviceName').AsString; //'Устройство';  //
        inc(i);
        Next();
      end;
      Close();
    end;
  finally
    q.free();
  end;
  e.Visible := true;
end;

end.

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unit uExportSales;

interface

type

TExport = class

procedure ExportRestSalesXLS;

procedure ExporAlltSalesXLS;

end;

implementation

uses

FireDAC.Comp.Client, //

uDBConnection, System.Win.ComObj, System.AnsiStrings, System.IOUtils, Vcl.Forms,

Vcl.Graphics, System.SysUtils, System.Variants;

procedure TExport.ExportRestSalesXLS;

function getCountAlreadyExported(): integer;

var

q: TFdquery;

begin

q := TFdquery.Create(nil);

try

with q do

begin

connection := DBConnection_Sales.FDConnection;

sql.Text := 'SELECT value FROM salesforecast_db.servicetable where name=''salesXLSFileCount'';';

Disconnect();

Open();

result := FieldByName('value').AsInteger;

Close();

end;

finally

q.free();

end;

function getCountSales(): Integer;

var

q: TFdquery;

begin

q := TFdquery.Create(nil);

try

with q do

begin

connection := DBConnection_Sales.FDConnection;

sql.Text := DBConnection_Sales.qCountSales.SQL.Text;

Disconnect();

Open();

result := FieldByName('countSales').AsInteger;

Close();

end;

finally

q.free();

end;

var

e: Variant;

q: TFDQuery;

countRecAlreadyExported: integer;

i: integer;

filePath: string;

countSales: int64;

begin

countRecAlreadyExported := getCountAlreadyExported();

countSales := getCountSales();

e := CreateOleObject('Excel.Application');

filePath := ExtractFilePath(Application.ExeName) + 'sales.xlsx';

if TFile.Exists('sales.xlsx') then

e.workbooks.open(filePath)

else

begin // create new

e.Workbooks.Add;

e.columns[1].columnwidth := 24.71;

e.columns[2].columnwidth := 24.71;

e.columns[3].columnwidth := 24.71;

e.columns[4].columnwidth := 24.71;

e.columns[5].columnwidth := 24.71;

e.columns[6].columnwidth := 24.71;

e.columns[7].columnwidth := 24.71;

e.columns[8].columnwidth := 24.71;

// e.ActiveWorkBook.WorkSheets[1].Cells[1, 2] := 'Текст ячейки (1,2)';

e.ActiveSheet.PageSetup.LeftMargin := e.Application.InchesToPoints(0.44);

e.ActiveSheet.PageSetup.RightMargin := e.Application.InchesToPoints(0.44);

e.ActiveSheet.PageSetup.TopMargin := e.Application.InchesToPoints(0.44);

e.ActiveSheet.PageSetup.BottomMargin := e.Application.InchesToPoints(0.44);

e.Rows[1].font.bold := true;

e.Rows[1].font.size := 10;

e.Rows[1].font.color := clBlack;

// headers...

e.ActiveWorkBook.WorkSheets[1].cells[1, 1] := 'Дата';

e.ActiveWorkBook.WorkSheets[1].cells[1, 2] := 'Номер';

e.ActiveWorkBook.WorkSheets[1].cells[1, 3] := 'Отдел';

e.ActiveWorkBook.WorkSheets[1].cells[1, 4] := 'Название';

e.ActiveWorkBook.WorkSheets[1].cells[1, 5] := 'Цена';

e.ActiveWorkBook.WorkSheets[1].cells[1, 6] := 'Количество';

e.ActiveWorkBook.WorkSheets[1].cells[1, 7] := 'Сумма';

e.ActiveWorkBook.WorkSheets[1].cells[1, 8] := 'Устройство';

countRecAlreadyExported := 0;

end;

// e.Visible := true;

q := TFdquery.Create(nil);

try

with q do

begin

connection := DBConnection_Sales.FDConnection;

sql.Text := DBConnection_Sales.qSales.SQL.Text + 'limit ' + countRecAlreadyExported.ToString + ',10000';

Disconnect();

Open();

i := countRecAlreadyExported + 1;

while not eof do

begin

e.ActiveWorkBook.WorkSheets[1].cells[i, 1] := DateTimeToStr(FieldByName('localDate').AsDateTime);

e.ActiveWorkBook.WorkSheets[1].cells[i, 2] := FieldByName('doubleNumber').AsString; //doubleNumber

e.ActiveWorkBook.WorkSheets[1].cells[i, 3] := FieldByName('depName').AsString; // 'Отдел'; //depName

e.ActiveWorkBook.WorkSheets[1].cells[i, 4] := FieldByName('goodName').AsString; //'Название';

e.ActiveWorkBook.WorkSheets[1].cells[i, 5] := FormatFloat('0.00', FieldByName('price').AsFloat); //'Цена';

e.ActiveWorkBook.WorkSheets[1].cells[i, 6] := FieldByName('quantity').AsInteger.ToString(); //'Количество'; //quantity

e.ActiveWorkBook.WorkSheets[1].cells[i, 7] := FormatFloat('0.00', FieldByName('summ').AsFloat);

e.ActiveWorkBook.WorkSheets[1].cells[i, 8] := FieldByName('deviceName').AsString; //'Устройство'; //

inc(i);

Next();

end;

Close();

//test

{

i := i + 1;

e.ActiveWorkBook.WorkSheets[1].cells[i, 1] := 'test';

e.ActiveWorkBook.WorkSheets[1].cells[i, 2] := 'test';

e.ActiveWorkBook.WorkSheets[1].cells[i, 3] := 'test';

e.ActiveWorkBook.WorkSheets[1].cells[i, 4] := 'test';

e.ActiveWorkBook.WorkSheets[1].cells[i, 5] := 'test';

e.ActiveWorkBook.WorkSheets[1].cells[i, 6] := 'test';

e.ActiveWorkBook.WorkSheets[1].cells[i, 7] := 'test';

e.ActiveWorkBook.WorkSheets[1].cells[i, 8] := 'test';

}

// update countExported

// UPDATE `salesforecast_db`.`servicetable` SET `value`='10206' WHERE `id`='2';

q := TFdquery.Create(nil);

try

with q do

begin

connection := DBConnection_Sales.FDConnection;

sql.Text := 'UPDATE `salesforecast_db`.`servicetable` SET `value`=:value WHERE `name`=''salesXLSFileCount''';

params.ParamValues['value'] := countSales;

ExecSQL;

end;

finally

q.free();

end;

e.DisplayAlerts := False;

e.ActiveWorkbook.SaveAs(ExtractFilePath(Application.ExeName) + 'salesTemp.xlsx');

e.Application.Quit;

e := Unassigned;

TFile.Delete(filePath);

TFile.Copy(ExtractFilePath(Application.ExeName) + 'salesTemp.xlsx', ExtractFilePath(Application.ExeName) + 'sales.xlsx');

TFile.Delete(ExtractFilePath(Application.ExeName) + 'salesTemp.xlsx');

end;

finally

q.free();

//e.DisplayAlerts := False;

//e.ActiveWorkbook.Save();

//e.DisplayAlerts := True;

end;

// export more records

end;

procedure TExport.ExporAlltSalesXLS;

var

e: Variant;

sheet: Variant;

q: TFDQuery;

i: integer;

countSales: int64;

const

xlContinuous = 1;

xlThin = 2;

xlTop = -4160;

xlCenter = -4108;

begin

e := CreateOleObject('Excel.Application');

e.Workbooks.Add;

e.columns[1].columnwidth := 24.71;

e.columns[2].columnwidth := 24.71;

e.columns[3].columnwidth := 24.71;

e.columns[4].columnwidth := 24.71;

e.columns[5].columnwidth := 24.71;

e.columns[6].columnwidth := 24.71;

e.columns[7].columnwidth := 24.71;

e.columns[8].columnwidth := 24.71;

// e.ActiveWorkBook.WorkSheets[1].Cells[1, 2] := 'Текст ячейки (1,2)';

e.ActiveSheet.PageSetup.LeftMargin := e.Application.InchesToPoints(0.44);

e.ActiveSheet.PageSetup.RightMargin := e.Application.InchesToPoints(0.44);

e.ActiveSheet.PageSetup.TopMargin := e.Application.InchesToPoints(0.44);

e.ActiveSheet.PageSetup.BottomMargin := e.Application.InchesToPoints(0.44);

e.Rows[1].font.bold := true;

e.Rows[1].font.size := 10;

e.Rows[1].font.color := clBlack;

// headers...

sheet := e.workbooks[1].worksheets[1];

e.ActiveWorkBook.WorkSheets[1].cells[1, 1] := 'Дата';

e.ActiveWorkBook.WorkSheets[1].cells[1, 2] := 'Номер';

e.ActiveWorkBook.WorkSheets[1].cells[1, 3] := 'Отдел';

e.ActiveWorkBook.WorkSheets[1].cells[1, 4] := 'Название';

e.ActiveWorkBook.WorkSheets[1].cells[1, 5] := 'Цена';

e.ActiveWorkBook.WorkSheets[1].cells[1, 6] := 'Количество';

e.ActiveWorkBook.WorkSheets[1].cells[1, 7] := 'Сумма';

e.ActiveWorkBook.WorkSheets[1].cells[1, 8] := 'Устройство';

q := TFdquery.Create(nil);

try

with q do

begin

connection := DBConnection_Sales.FDConnection;

sql.Text := DBConnection_Sales.qCountSales.SQL.Text;

Disconnect();

Open();

countSales := FieldByName('countSales').AsInteger;

Close();

end;

finally

q.free();

end;

q := TFdquery.Create(nil);

try

with q do

begin

connection := DBConnection_Sales.FDConnection;

sql.Text := DBConnection_Sales.qSales.SQL.Text;

params.ParamValues['limit'] := countSales;

Disconnect();

Open();

i := 2;