Thumbnails are not created? - php

Question

I am trying to create thumbnails original image is been uploaded to upload/large
but not thumbnails are created in upload/thumbs I was using the CodeIgniter Image Manipulation Class and it's not working.Help me to sort out problem
My Controller
var $file_path; //for original image
var $file_path_url; //for thumbnails
function __construct()
{
// Call the Model constructor
parent::__construct();
$this->load->library('session');
$this->is_login();
$this->load->helper(array('form', 'url'));
$this->load->model('Edit_profile');
//return full path of directory
//Make sure these directory have read and write permission
$this->file_path = realpath(APPPATH . '../upload/large');
$this->file_path_url = realpath(APPPATH.'../upload/thumbs');
// $this->load->model('Insert_article');
}
function upload()
{
//loading image class
$session_data = $this->session->userdata('sessiondata');
$user_id = $session_data['user_id'];
//post image
$img=$this->input->post("filename");
//set preferences
$config['remove_spaces']=TRUE;
$config['encrypt_name'] = TRUE; // for encrypting the name
$config['upload_path'] = LARGEPATH;
$config['allowed_types'] = 'jpg|png|gif';
$config['max_size'] = '78000';
//load moadel ********
$this->load->model('Edit_profile');
//load upload class library
$this->load->library('upload', $config);
//$this->upload->do_upload('filename') will upload selected file to destiny folder
if (!$this->upload->do_upload('filename'))
{
// case - failure
$upload_error = array('error' => $this->upload->display_errors());
$this->load->view('edit_profile', $upload_error);
}
else
{
// case - success
//callback returns an array of data related to the uploaded file like the file name, path, size etc
$upload_data = $this->upload->data();
// call to model function *********
$data['images'] = $this->Edit_profile->insert_new_post($upload_data);
//now creating thumbnails
$config1 = array(
'source_image' => $upload_data['full_path'],
'create_thumb' =>true,
'overwrite' =>false,
'maintain_ratio' =>true,
'new_image' => $this->file_path_url,
'maintain_ratio' => true,
'width' => 36,
'height' => 36
);
print_r($config1);
$this->load->library('image_lib');
$this->image_lib->initialize($config1);
$this->image_lib->resize();
//here is the second thumbnail, notice the call for the initialize() function again
//$this->image_lib->initialize($config);
//$this->image_lib->resize();
$data['success_msg'] = '<div class="alert alert-success text-center">Your file <strong>' . '</strong> was successfully uploaded!</div>';
redirect(base_url("Display_profilepic/index"));
}
}
//Model
function insert_new_post($upload_data)
{
$session_data = $this->session->userdata('sessiondata');
$user_id = $session_data['user_id'];
$filePath = ltrim(LARGEPATH.$upload_data['file_name'],'.');
//print_r(LARGEPATH);
$query = "UPDATE `tbl_usrs` set profile_picture='".$filePath."' where user_id='".$user_id."'";
// $this->db->query($query,array($img));
$arg=array ($upload_data);
if($this->db->query($query,$arg)==true)
{
return true; // if added to database
}else {
return false;
}
}

Answer 1

Please update the new_image value by including the filename also.
$config1 = array(
'image_library'=>'gd2',
'source_image' => $upload_data['full_path'],
'create_thumb' =>true,
'overwrite' =>false,
'maintain_ratio' =>true,
'new_image' => $this->file_path_url.'/'.$upload_data['file_name'], //add slash
'maintain_ratio' => true,
'width' => 36,
'height' => 36
);

Answer 2

Try to use the following code
$data = $this->upload->data(); $this->thumb($data);
//Function for creating Thumbnails
function thumb($data) {
$config['image_library'] = 'gd2';
$config['source_image'] = $data['full_path'];
$config['create_thumb'] = TRUE;
// $config['maintain_ratio'] = TRUE;
$config['width'] = 350;
$config['height'] = 250;
$this->load->library('image_lib');
$this->image_lib->initialize($config);
$this->image_lib->resize();
$this->image_lib->clear();
return true;
}