Error on uploading CSV File in Codeigniter - php

Question

Hi I am trying to import an CSV into MYSQL database using A CI Library. But I get this error in Controller that file type is now allowed
Controller:
<?php
class Csv extends CI_Controller {
function __construct() {
parent::__construct();
$this->load->model('csv_model');
$this->load->library('csvimport');
}
function index() {
$data['addressbook'] = $this->csv_model->get_addressbook();
$this->load->view('csvindex', $data);
}
function importcsv() {
$data['addressbook'] = $this->csv_model->get_addressbook();
$data['error'] = ''; //initialize image upload error array to empty
$config['upload_path'] = './uploads/';
$config['allowed_types'] = 'csv';
$config['max_size'] = '1000';
$this->load->library('upload', $config);
// If upload failed, display error
if (!$this->upload->do_upload()) {
$data['error'] = $this->upload->display_errors();
$this->load->view('csvindex', $data);
} else {
$file_data = $this->upload->data();
$file_path = './uploads/'.$file_data['file_name'];
if ($this->csvimport->get_array($file_path)) {
$csv_array = $this->csvimport->get_array($file_path);
foreach ($csv_array as $row) {
$insert_data = array(
'firstname'=>$row['firstname'],
'lastname'=>$row['lastname'],
'phone'=>$row['phone'],
'email'=>$row['email'],
);
$this->csv_model->insert_csv($insert_data);
}
$this->session->set_flashdata('success', 'Csv Data Imported Succesfully');
redirect(base_url().'csv');
//echo "<pre>"; print_r($insert_data);
} else
$data['error'] = "Error occured";
$this->load->view('csvindex', $data);
}
}
}
/*END OF FILE*/
The Model :
<?php
class Csv_model extends CI_Model {
function __construct() {
parent::__construct();
}
function get_addressbook() {
$query = $this->db->get('addressbook');
if ($query->num_rows() > 0) {
return $query->result_array();
} else {
return FALSE;
}
}
function insert_csv($data) {
$this->db->insert('addressbook', $data);
}
}
/*END OF FILE*/
I am trying to Import A CSV using PHP Codeigniter. Now I am getting an error that
The filetype you are attempting to upload is not allowed.
So as you can see i have kept the allowed file type = csv then also this issue is coming. So please help. Thanks

Answer 1

Instead of changing the mime type you can go with the CALLBACK function
This will add more portability too...
function importcsv() {
$data['addressbook'] = $this->csv_model->get_addressbook();
$data['error'] = ''; //initialize image upload error array to empty
$this->form_validation->set_rules('uploaded_file','Uploaded file', 'trim|callback_chk_attachment');
if($this->form_validation->run()){
$config['upload_path'] = './uploads/';
$config['allowed_types'] = '*';
$config['max_size'] = '1000';
$this->load->library('upload', $config);
// If upload failed, display error
if (!$this->upload->do_upload()) {
$data['error'] = $this->upload->display_errors();
$this->load->view('csvindex', $data);
} else {
$file_data = $this->upload->data();
$file_path = './uploads/'.$file_data['file_name'];
if ($this->csvimport->get_array($file_path)) {
$csv_array = $this->csvimport->get_array($file_path);
foreach ($csv_array as $row) {
$insert_data = array(
'firstname'=>$row['firstname'],
'lastname'=>$row['lastname'],
'phone'=>$row['phone'],
'email'=>$row['email'],
);
$this->csv_model->insert_csv($insert_data);
}
$this->session->set_flashdata('success', 'Csv Data Imported Succesfully');
redirect(base_url().'csv');
//echo "<pre>"; print_r($insert_data);
} else
$data['error'] = "Error occured";
$this->load->view('csvindex', $data);
}
}
Call Back function for File Upload validation:
public function chk_attachment() // callback validation for check the attachment extension
{
$file_type = array('.csv');
if(!empty($_FILES['uploaded_file']['name']))
{
$ext = strtolower(strrchr($_FILES['uploaded_file']['name'],"."));
if(in_array($ext,$ext_array))
{
return true;
}
else
{
$this->form_validation->set_message('chk_attachment','Attachment allowed only csv');
return false;
}
}
{
$this->form_validation->set_message('chk_attachment','image field is required');
return false;
}
}