出现重复输入错误时,我试图将用户重定向到其他页面。我在用Codeigniter
。我已经编写了以下代码,但是它显示错误消息Duplicate entry '1' for key 'semester_id'
。
请检查代码并指导我。
谢谢
public function insert_sports_sports($student_id, $squash, $football, $cricket, $hockey, $swimming, $semester_id)
{
$data= array (
"squash"=> $squash,
"football"=>$football,
"cricket"=>$cricket,
"hockey"=>$hockey,
"swimming"=>$swimming,
"studentId"=>$student_id,
"semester_id" => $semester_id
);
if ($this->db->insert("sports",$data))
{
return true;
}
else
{
return false;
}
}
控制器
---
--
--
if($this->loginmodel->insert_sports_sports($student_id, $squash, $football, $cricket,
$hockey, $swimming, $semester_id))
{
redirect('mycontroller/index');
}
else
{
$this->load->view('success');
}
}
编辑
if ($this->db->insert("sports",$data))
{
return true;
}
else
{
return false;
}
}
catch (Exception $ex) {
if($ex->message == "Duplicate entry '1' for key 'semester_id'")
{
redirect('success.php');
}
}
}
错误信息
A Database Error Occurred
Error Number: 1062
Duplicate entry '1' for key 'semester_id'
INSERT INTO `sports` (`squash`, `football`, `cricket`, `hockey`, `swimming`, `studentId`, `semester_id`) VALUES ('4', '4', '4', '4', '4', '42', '1')
Filename: F:\xampp\htdocs\student_management2\system\database\DB_driver.php
Line Number: 330
删除尝试捕获并尝试此
$orig_debug = $this->db->db_debug;
$this->db->db_debug = FALSE;
if ($this->db->insert("sports",$data))
{
$this->db->db_debug = $orig_debug;
return true;
}
else
{
$this->db->db_debug = $orig_debug;
return false;
}
它基本上使您的插入查询的调试静音。如果发生错误,则不会进行任何插入,因此它将返回false。
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我来说两句