Codeigniter:How to get the last inserted id? - mysql

Question

Hi I am using codeigniter.I need to get the last inserted id and increment it and use it in my view page,
My controller code:
public function add_tickets()
{
$status = $this->input->post("status_button");
$emp_array = $this->input->post("employee");
$start_array = $this->input->post("start_time");
$pid_array = $this->input->post("pid");
$total_array = $this->input->post("total");
if($status == "leave_open")
{
$button_status="open";
}
else
{
$button_status="";
}
$insert_id = $this->billing_model->store_bill($data_to_store);
/*Here I am tring to get the last inserted id*/
for ($i = 0; $i < count($pid_array); $i++) {
if(isset($pid_array[$i])&& $pid_array[$i]!=""){
$data_to_store = array(
'id' => $insert_id +1,
'employee' => $emp_array[$i],
'start_time' => $start_array[$i],
'pid' => $pid_array[$i],
'total' => $total_array[$i],
'status' => $button_status,
);
$this->billing_model->store_bill($data_to_store);
}
}
$data['ticket_new_id'] = $data_to_store['id'];
$data['bill']=$this->billing_model->get_bill();
$data['main_content'] = 'admin/billing/list';
$this->load->view('includes/template', $data);
}
This is my controller function where I insert my bill.
Here is my model function,
function store_bill($data)
{
$insert = $this->db->insert('bill', $data);
$insert_id = $this->db->insert_id();
return $insert_id;
}
Here I am using $this->db->insert_id() to get the last inserted id.
I am getting a error like this,
You must use the "set" method to update an entry.
Filename: C:\xampp\htdocs\elfanto\elfanto_billing\system\database\DB_active_rec.php
Line Number: 1174
Can someone help me? Thanks in advance

Answer 1

I think this is your solution:
<?php
public function add_tickets()
{
$status = $this->input->post("status_button");
$emp_array = $this->input->post("employee");
$start_array = $this->input->post("start_time");
$pid_array = $this->input->post("pid");
$total_array = $this->input->post("total");
if($status == "leave_open")
{
$button_status="open";
}
else
{
$button_status="";
}
/*beore inserting first get the last ID of the table*/
$this->db->select('*');
$this->db->from('bill');
$this->db->order_by('id','desc');
$result = $this->db->get()->result();
$last_id = $result[0]->id;//This is the last ID of the table
/*now insert the data with incremented ID and send it to your view */
$data_to_store = array(
'id' => $insert_id +1,
'employee' => $emp_array,
'start_time' => $start_array,
'pid' => $pid_array,
'total' => $total_array,
'status' => $button_status,
);
$this->billing_model->store_bill($data_to_store);
$insert_id = $last_id + 1;//this will be your last inserted ID
$data['ticket_new_id'] = $insert_id ;
$data['bill']=$this->billing_model->get_bill();
$data['main_content'] = 'admin/billing/list';
$this->load->view('includes/template', $data);
}
For more reference how to get last ID using codeigniter check this

Answer 2

I have check your code not initialize the variable
$status = $this->input->post("status_button");
$emp_array = $this->input->post("employee");
$start_array = $this->input->post("start_time");
$pid_array = $this->input->post("pid");
$total_array = $this->input->post("total");
if($status == "leave_open")
{
$button_status="open";
}
else
{
$button_status="";
}
// $data_to_store is not initialized and you are trying to store the value that's why it give you error
$insert_id = $this->billing_model->store_bill($data_to_store);