Converting joomla 2x component compatible to joomla 3x

Question

I am updating Joomla component to Joomla 3x but getting error on code.

Code Line:

$postData = $this->dr_parameters->app->session->get('errorPostData', array() );

Error:

0 Call to a member function get() on null

and

I replaced the

previous code:

JRequest::get('post');

with

This code:

JFactory::getApplication()->input->get('post');

is this correct?

Answer 1

Try using the JSession class to get the session data. Change this line:

$postData = $this->dr_parameters->app->session->get('errorPostData', array() );

to:

$objSession = JFactory::getSession();
$postData = $objSession->get('errorPostData', array());

To set a session the value of a session variable, you can do this:

$objSession = JFactory::getSession();
$objSession ->set($key, $value);