checking file format during upload a file in grocery CRUD [closed]

Question

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.

Closed 8 years ago.

I have the following code for file upload using grocery CRUD

function test(){
        $crud=new grocery_CRUD();       
        $crud->set_table('test');
        $crud->add_fields('name', 'image');
        $crud->set_field_upload('image', 'test');
        $crud->callback_before_upload('image', array($this, 'before_test_upload'));
        $output=$crud->render();
        $output->page_title="Test Page";
        $this->_crud_output($output);       
    }
function before_test_upload($files_to_upload, $field_info){
        // Here I want to check the file format before that file upload to source folder.
    }

Answer 1

Yes, Have you tried with following way:

function employees_management()
{
    $crud = new grocery_CRUD();


    $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/files');
    $crud->callback_before_upload(array($this,'example_callback_before_upload'));

    $output = $crud->render();

    $this->_example_output($output);
}    


function example_callback_before_upload($files_to_upload,$field_info)
{
/*
 * Examples of what the $files_to_upload and $field_info will be:    
$files_to_upload = Array
(
        [sd1e6fec1] => Array
        (
                [name] => 86.jpg
                [type] => image/jpeg
                [tmp_name] => C:\wamp\tmp\phpFC42.tmp
                [error] => 0
                [size] => 258177
        )

)

$field_info = stdClass Object
(
        [field_name] => file_url
        [upload_path] => assets/uploads/files
        [encrypted_field_name] => sd1e6fec1
)

*/

    foreach($files_to_upload as $value) {
        $ext = pathinfo($value['name'], PATHINFO_EXTENSION);
    }

    $allowed_formats = array("jpg","gif");
    if(in_array($ext,$allowed_formats))
    {
        return true;
    }
    else
    {
        return 'Wrong file format';    
    }

}