Controller

public function ajax_list()
	{
		$list = $this->m_pengadaan->get_datatables();
    $no = 1;
		$data = array();
		foreach ($list as $detail) {
			$row = array();
      $row[] = $no;
      $row[] = $detail->idpengadaan_detail;
			$row[] = $detail->idbarang;
			$row[] = $detail->namabarang;
			$row[] = $detail->jumlah;
			$row[] = $detail->harga;
      $row[] = $detail->subtotal;
			//add html for action
			$row[] = '<a class="btn btn-sm btn-danger" href="javascript:void(0)" title="Hapus" onclick="delete_supplier('."'".$detail->idpengadaan_detail."'".')"><i class="glyphicon glyphicon-trash"></i><span> Delete</span></a>';
			$data[] = $row;
      	$no++;
		}

		$output = array(
						"draw" => $_POST['draw'],
						"recordsTotal" => $this->m_pengadaan->count_all(),
						"recordsFiltered" => $this->m_pengadaan->count_filtered(),
						"data" => $data,
				);
		//output to json format
		echo json_encode($output);
	}