Joomla 3.0 MVC file upload in custom component backend - php

Question

SOLUTION: How to Save Uploaded File's Name on Database
this ended up helping me.
i am trying to add a file upload to a custom component using XML and database.
I know how to get file upload done in a static PHP environment but my knowledge
about the PHP MVC structure in joomla makes it so I am unable to add it.
What I have done so far:
• Added the field in the XML file (of the type file)
• Added the form fields in admin view project
• Added an extra field My_project table(same as the image upload column)
Until this point it works.(fields are shown in admin backend component)
Now when you save the document with a file uploaded in the admin back end it does not save it to the database.
if i put media as field type then it works, but when i change it to file it breaks down.
XML file
<?xml version="1.0" encoding="utf-8"?>
<form>
<fieldset>
<field name="project_file" type="file"
label="Upload file"
description="Upload file"
directory="mysites" />
<field name="main_image" type="media"
label="COM_MYSITES_FORM_LBL_PROJECT_MAIN_IMAGE"
description="COM_MYSITES_FORM_DESC_PROJECT_MAIN_IMAGE"
filter="raw"
directory="mysites" />
</fieldset>
PHP file upload script i normaly use
<?php
$temp = explode(".", $_FILES["file"]["name"]);
$extension = end($temp);
if ($_FILES["file"]["error"] > 0)
{
echo "Return Code: " . $_FILES["file"]["error"] . "<br>";
}
else
{
echo "Upload: " . $_FILES["file"]["name"] . "<br>";
echo "Type: " . $_FILES["file"]["type"] . "<br>";
echo "Size: " . ($_FILES["file"]["size"] / 1024) . " kB<br>";
echo "Temp file: " . $_FILES["file"]["tmp_name"] . "<br>";
if (file_exists("upload/" . $_FILES["file"]["name"]))
{
echo $_FILES["file"]["name"] . " already exists. ";
}
else
{
move_uploaded_file($_FILES["file"]["tmp_name"],
"upload/" . $_FILES["file"]["name"]);
echo "Stored in: " . "upload/" . $_FILES["file"]["name"];
}
}
}
else
{
echo "Invalid file";
}
?>
but what part goes in the model and what part goes in the controller?
and how to call it.
entire view is called in the controller
class MysitesControllerProject extends JControllerForm {
function __construct() {
$this->view_list = 'projects';
$jinput = JFactory::getApplication()->input;
$files = $jinput->files->get('jform');
$file = $files['project_file'];
$this->upload($file);
parent::__construct();
}
public function upload($files)
{
$file_name = $files['name'];
$src = $files['tmp_name'];
$size = $files['size'];
$upload_error = $files['error'];
$type = $files['type'];
$dest = "/home/vol3/byethost33.com/b33_13467508/bim-portfolio.cu.cc/htdocs/tmp";
if (isset( $file_name)) {
// Move the uploaded file.
JFile::upload( $src, $filepath );
}
}
}

Answer 1

Placing new field in database and XML form is only half of work. You also have to write file save/upload functionality. There are two places you can do it. In controller (for example save task procedure) or model (there are 2-3 functions where you can do it). Look into this file /administrator/components/com_media/controllers/upload.php (upload procedure). I would just extend your save function so before data will be saved into database file will be stored on file system. You can find original save function declaration in /libraries/legacy/controller/legacy.php (for Joomla 3.0.1, for other versions it shouldn't be hard to find)
Here is sample save function:
public function save($key = null, $urlVar = null){
// youre file upload code
return parent::save($key = null, $urlVar = null)
}