Codeigniter: No error but it won't insert data to database - php

Question

Model:
function insertMonths($dr){
$cus = $this->db->query("SELECT * FROM purchase WHERE status=1 AND dr_no='$dr'");
return $cus->row();
$start = (new DateTime($cus->date_sold))->modify('+1 month');
$end = (new DateTime($cust->due_date))->modify('+1 month');
$interval = DateInterval::createFromDateString('1 month');
$period = new DatePeriod($start, $interval, $end);
$query = $this->db->query("SELECT * FROM duedate WHERE dr_no='$dr'");
if($query->num_rows() > 0){
return false;
}else{
foreach ($period as $dt) {
$datas = array(
'cust_id' => $cust->cust_id ,
'mi' => $dt->format("Y-m-d") ,
'amount' => $cust->monthly_instlmnt,
'dr_no' => $dr,
'payment' => $cust->monthly_instlmnt
);
$this->db->insert('duedate', $datas);
}
}
}
Controller:
function ledger($id, $dr){
$this->load->view('layout/header');
$data['cust_data'] = $this->m->getData($id);
$datar['mos'] = $this->m->insertMonths($dr);
$this->load->view('receivables/ledger', $data, $datar);
$this->load->view('layout/footer');
}
Botton js code that links to ledger:
'<td><button type="button" class="btn btn-success">View</button></td>'
I want it to add $datas into table duedate when I enter link ledger/id/dr with conditions if there is duplicate data it won't add.
But the problem is it won't add eventhough there is no duplicate data.

Answer 1

Why do you have a return statement on line 2 of your function?
$cus = $this->db->query("SELECT * FROM purchase WHERE status=1 AND dr_no='$dr'");
return $cus->row();
If you neglected that, it won't go to your insert query since you already commanded the function to return.
Remove this (On line 2 of your function)
return $cus->row();