callback_after_upload

void callback_after_upload( mixed $callback )
Quick Description: A callback that triggered after the upload functionality.
Available for version >= 1.2

A callback that triggered after the upload functionality. This is very useful if you want to resize the file, create thumbnail, zip it e.t.c.

I have an example with a simple resizing using image moo for the callback_after_upload

 
function employees_management()
{
$crud = new grocery_CRUD();
 
$this->load->config('grocery_crud');
$this->config->set_item('grocery_crud_file_upload_allow_file_types',
'gif|jpeg|jpg|png');
 
$crud->set_table('employees');
$crud->set_relation('officeCode','offices','city');
$crud->display_as('officeCode','Office City');
$crud->set_subject('Employee');
 
$crud->set_field_upload('file_url','assets/uploads/images');
 
$crud->callback_after_upload(array($this,'example_callback_after_upload'));
 
$output = $crud->render();
 
$this->_example_output($output);
}    
 
/*
 * Examples of what the $uploader_response, $files_to_upload and $field_info will be:
$uploader_response = Array
    (
        [0] => stdClass Object
            (
                [name] => 6d9c1-52.jpg
                [size] => 495375
                [type] => image/jpeg
                [url] => http://grocery_crud/assets/uploads/files/6d9c1-52.jpg
            )
 
    )
 
$field_info = stdClass Object
(
        [field_name] => file_url
        [upload_path] => assets/uploads/files
        [encrypted_field_name] => sd1e6fec1
)
 
$files_to_upload = Array
(
        [sd1e6fec1] => Array
        (
                [name] => 86.jpg
                [type] => image/jpeg
                [tmp_name] => C:\wamp\tmp\phpFC42.tmp
                [error] => 0
                [size] => 258177
        )
 
)
*/    
function example_callback_after_upload($uploader_response,$field_info, $files_to_upload)
{
$this->load->library('image_moo');
 
//Is only one file uploaded so it ok to use it with $uploader_response[0].
$file_uploaded = $field_info->upload_path.'/'.$uploader_response[0]->name; 
 
$this->image_moo->load($file_uploaded)->resize(800,600)->save($file_uploaded,true);
 
return true;
}