Joomla 3.1 Database update query not working - mysql

Question

Recently I was making an upload component for joomla 3.1 back-end.
based on How to Save Uploaded File's Name on Database
I was successful in moving the file to the hard-drive,
however I just cant get the update query to work based on the posted post above.
I don't get any SQL errors and saving works, but somehow ignores the database part.
I really hope I missed something obvious. (btw I don't know the joomla way of queries very well)
In phpmyadmin the following query works:
UPDATE hmdq7_mysites_projects
SET project_file = 'test'
WHERE id IN (3);
I have tried the following queries:
$id = JRequest::getVar('id');
$db =& JFactory::getDBO();
$sql = "UPDATE hmdq7_mysites_projects
SET project_file =' " . $filename. "'
WHERE id IN (".$id.");";
$db->setQuery($sql);
$db->query();
$colum = "project_file";
$id = JRequest::getVar('id');
$data = JRequest::getVar( 'jform', null, 'post', 'array' );
$data['project_file'] = strtolower( $file['name']['project_file'] );
$db =& JFactory::getDBO();
$query = $db->getQuery(true);
$query->update('#__mysites_projects');
$query->set($column.' = '.$db->quote($data));
$query->where('id'.'='.$db->quote($id));
$db->setQuery($query);
$db->query();
Here is the current code:
class MysitesControllerProject extends JControllerForm
{
function __construct() {
$this->view_list = 'projects';
parent::__construct();
}
function save(){
// ---------------------------- Uploading the file ---------------------
// Neccesary libraries and variables
jimport( 'joomla.filesystem.folder' );
jimport('joomla.filesystem.file');
$path= JPATH_SITE . DS . "images";
// Create the gonewsleter folder if not exists in images folder
if ( !JFolder::exists(JPATH_SITE . "/images" ) ) {
JFactory::getApplication()->enqueueMessage( $path , 'blue');
}
// Get the file data array from the request.
$file = JRequest::getVar( 'jform', null, 'files', 'array' );
// Make the file name safe.
$filename = JFile::makeSafe($file['name']['project_file']);
// Move the uploaded file into a permanent location.
if ( $filename != '' ) {
// Make sure that the full file path is safe.
$filepath = JPath::clean( JPATH_SITE . "/images/" . $filename );
// Move the uploaded file.
JFile::upload( $file['tmp_name']['project_file'], $filepath );
$colum = "project_file";
$id = JRequest::getVar('id');
$data = JRequest::getVar( 'jform', null, 'post', 'array' );
$data['project_file'] = strtolower( $file['name']['project_file'] );
$db =& JFactory::getDBO();
$query = $db->getQuery(true);
$query->update('#__mysites_projects');
$query->set($column.' = '.$db->quote($data));
$query->where('id'.'='.$db->quote($id));
$db->setQuery($query);
$db->query();
}
// ---------------------------- File Upload Ends ------------------------
JRequest::setVar('jform', $data );
return parent::save();
}

Answer 1

(Answered by the OP in comments. Converted to a community wiki answer. See Question with no answers, but issue solved in the comments (or extended in chat) )
The OP wrote:
Solved: after reviewing the post update record in database using jdatabase I made up some fixed test values. It turns out the query is correct but $data variable in the query had no data. $data['project_file'] = strtolower( $file['name']['project_file'] ); removed the array from first part and variable worked.