Question

我有一个codeigniter查询，插入三个外键和一个数量。

这是我在模型中的查询：

public function create()
{
  $insert_data = array(
    'student_id' => $this->input->post('feestudentstudent'),
    'schoolyear_id' => $this->input->post('feestudentschoolyear'),
    'feetype_id' => $this->input->post('feestudentfeetype'),
    'feestudent_amount' => $this->input->post('feestudentamount')
  );
  $status = $this->db->insert('tbl_feestudent', $insert_data);
}

我想要的是如果插入的以下三列是相同的，则student_id，schoolyear_id和feetype_id值存在于同一行中，它将不会插入新行，并且金额将仅添加到现有行的数量。

注意：没关系，student_id和schoolyear_id是一样的，我想要的是如果包括feetype_id在内的所有三个都相同，它会增加数量。

Answer 1

您可以将此代码放在您的模型上

public function isExists($key,$valkey,$tabel)
{
    $this->db->from($tabel);
    $this->db->where($key,$valkey);
    $num = $this->db->count_all_results();
    if($num == 0)
    {
        return FALSE;
    }else{
        return TRUE;
    }
}

并且在您的控制器中，您可以访问这些功能，因此它就像

public function create()
{
   $student_id = $this->input->post('feestudentstudent');

   $insert_data = array(
  'student_id' => $this->input->post('feestudentstudent'),
  'schoolyear_id' => $this->input->post('feestudentschoolyear'),
  'feetype_id' => $this->input->post('feestudentfeetype'),
  'feestudent_amount' => $this->input->post('feestudentamount')
  );

  $update_data = array(
  'schoolyear_id' => $this->input->post('feestudentschoolyear'),
  'feetype_id' => $this->input->post('feestudentfeetype'),
  'feestudent_amount' => $this->input->post('feestudentamount')
  );

  //call the function
  $check = $this->(your model)->isExists('student_id',$student_id,'tbl_feestudent');

  if($check)
  {
    $this->db->where('student_id',$student_id);
    $this->db->update('tbl_feestudent', $update_data); 
  }
  else
  {
    $this->db->insert('tbl_feestudent', $insert_data);
  }

}

希望这会有所帮助：D

Answer 2

//MODEL    
public function upinsert($tabel,$data){
        $update='';
        $separator='';
        foreach ($data as $key => $value) {
          $update.=$separator." `$key` = '$value' ";
          $separator=',';
        }
        $sql = $this->db->insert_string($tabel, $data) . ' ON DUPLICATE KEY UPDATE '.$update;
        $this->db->query($sql);
        return $this->db->insert_id();
 }



//Your controller
public function create(){
  $insert_data = array(
    'student_id' => $this->input->post('feestudentstudent'),
    'schoolyear_id' => $this->input->post('feestudentschoolyear'),
    'feetype_id' => $this->input->post('feestudentfeetype'),
    'feestudent_amount' => $this->input->post('feestudentamount')
  );
  $status = $this->_model_name_here->upinsert('tbl_feestudent', $insert_data);
}

Answer 3

在创建数据之前，请检查表

    public function create()
    {
    $checkresult = $this->checkexist('tbl_feestudent',array('student_id'=>$this->input->post('feestudentstudent'),'schoolyear_id'=>$this->input->post('feestudentschoolyear'),'feetype_id'=>$this->input->post('feestudentfeetype')));
      $insert_data = array(
        'student_id' => $this->input->post('feestudentstudent'),
        'schoolyear_id' => $this->input->post('feestudentschoolyear'),
        'feetype_id' => $this->input->post('feestudentfeetype'),
        'feestudent_amount' => $this->input->post('feestudentamount')
      );
if($checkresult){
$this->db->where('student_id',$this->input->post('feestudentstudent'));
      $status = $this->db->update('tbl_feestudent', $insert_data);
    }else{
      $status = $this->db->insert('tbl_feestudent', $insert_data);
}

    public function checkexist($table,$where){
$this->db->select('*');
$this->db->select($table);
$this->db->where($where);
return $this->db->get()->result_array();
}

Codeigniter：INSERT多个值，UPDATE（如果已存在）

3 个答案: