So verwenden Sie distinct im Codeigniter

Question

Ich habe dieses Modell zuvor verwendet und es funktioniert, und jetzt weiß ich nicht, warum $ this-> db-> distinct(); funktioniert nicht.

if($this->input->post('Status')) 
    {               
     $this->db->where('Status', $this->input->post('Status')); 
    } 
    if($this->input->post('PlateNo')) 
    {               
     $this->db->like('PlateNo', $this->input->post('PlateNo')); 
    } 
    if($this->input->post('user.userId')) 
    {               
     $this->db->like('user.userId', $this->input->post('user.userId')); 
    } 

    $this->db->select('*'); 
    $this->db->distinct(); 
    $this->db->from($this->table); 

    $this->db->join('user', 'user.userId = loanapplication.userId', 'left'); 
    $this->db->join('loanrequest', 'loanrequest.ApplicationNo = loanapplication.ApplicationNo', 'left'); 
    $this->db->join('loanapproval', 'loanapproval.RequestNo = loanrequest.RequestNo', 'left'); 
    $this->db->join('collateraldetails', 'collateraldetails.ApplicationNo = loanapplication.ApplicationNo', 'left'); 
    $this->db->join('paymentdetails', 'paymentdetails.ApplicationNo = loanapplication.ApplicationNo', 'left'); 
    $this->db->join('loanpayment', 'loanpayment.PaymentId = paymentdetails.PaymentId', 'left'); 
    $this->db->join('vehicleinformation', 'vehicleinformation.vehicleNo = collateraldetails.vehicleNo', 'left'); 

Answer 1

Try this:

$this->db->group_by('name_of_the_column_you_dont_want_repeated');