我想对GROUP BY使用func.and_聚合函数，但我不明白如何在SQLAlchemy中实现它。我试过了require "PHPExcel/Classes/PHPExcel.php";
require "PHPExcel/Classes/PHPExcel/Writer/Excel5.php";
$objPHPExcel = new PHPExcel();
// Set document properties
$objPHPExcel->getProperties()->setCreator("Govinda")
->setLastModifiedBy("Govinda")
->setTitle("Office 2007 XLSX Test Document")
->setSubject("Office 2007 XLSX Test Document")
->setDescription("Test document for Office 2007 XLSX, generated using PHP classes.")
->setKeywords("office 2007 openxml php")
->setCategory("Test result file");
// Add some data
$objPHPExcel->getActiveSheet()->getColumnDimension('A')->setWidth(5);
$objPHPExcel->getActiveSheet()->getColumnDimension('B')->setWidth(30);
$objPHPExcel->getActiveSheet()->getColumnDimension('C')->setWidth(25);
$objPHPExcel->setActiveSheetIndex(0)
->setCellValue('A1', 'Sr no')
->setCellValue('B1', 'Name')
->setCellValue('C1', 'Age')
// Miscellaneous glyphs, UTF-8
while($row = mysql_fetch_array($result)){
$objPHPExcel->getActiveSheet()->SetCellValue('A'.$rowCount, $row['name']);
$objPHPExcel->getActiveSheet()->SetCellValue('B'.$rowCount, $row['age']);
$rowCount++;
}
// Rename worksheet
$objPHPExcel->getActiveSheet()->setTitle('UserList');
// Set active sheet index to the first sheet, so Excel opens this as the first sheet
$objPHPExcel->setActiveSheetIndex(0);
// Redirect output to a client’s web browser (Excel5)
header('Content-Type: application/vnd.ms-excel; charset=UTF-8');
header('Content-Disposition: attachment;filename="userList.xls"');
header('Cache-Control: max-age=0');
// If you're serving to IE 9, then the following may be needed
header('Cache-Control: max-age=1');
// If you're serving to IE over SSL, then the following may be needed
header ('Expires: Mon, 26 Jul 1997 05:00:00 GMT'); // Date in the past
header ('Last-Modified: '.gmdate('D, d M Y H:i:s').' GMT'); // always modified
header ('Cache-Control: cache, must-revalidate'); // HTTP/1.1
header ('Pragma: public'); // HTTP/1.0
$objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel5');
$objWriter->save('php://output');
，但它似乎没有用。
答案 0 :(得分：2)
您可以创建任何SQL函数表达式from func by its name：
请注意，
func未知的任何名称都会生成函数名称 - 对SQLAlchemy内置的已知或未知的SQL函数没有任何限制或用户定义。
所以答案就是：
func.bool_and(...)
SQLAlchemy有一些已知的函数并得到特殊处理，例如CURRENT_TIMESTAMP。