Fatal error: Call to a member function num_rows() on a non-object in /home/a8164

[subhasis]

HI

I AM A STUDENT I JUST CAME UP WITH THIS ERROR MESSAGE ..

CAN ANY ONE please HELP

:::

THE  EXACT ERROR CODE WAS

::

Fatal error: Call to a member function num_rows() on a non-object in /home/a8164291/public_html/application/models/applicationmodel.php on line 89

 

///////////////////////////////////////////////////////////////////////////////////////

<?php

 

/**

* User Model

*

*

  */

class Applicationmodel extends Model

{

//Constructor

function Applicationmodel()

{

parent::Model();

}

function getApplications($onlyBasic = false)

{

if ($onlyBasic == true) $appQuery = $this->db->query('SELECT * FROM applications WHERE user_id=0');

else  $appQuery = $this->db->query('SELECT * FROM applications');

if ($appQuery->num_rows() > 0)

{

$applications = array();

foreach ($appQuery->result_array() as $appRow)

{

$applications[$appRow['application_id']] = $appRow;

}

return $applications;

}

else  return false;

}

function getUserApplications()

{

$this->db->select('application_ids');

$this->db->where('user_id', $this->session->userdata('user_id'));

$this->db->limit(1, 0);

$userAppQuery = $this->db->get('users_applications');

if ($userAppQuery->num_rows() > 0)

{

$userAppRow = $userAppQuery->result_array();

$appQuery = $this->db->query('SELECT * FROM applications WHERE application_id IN (' . $userAppRow[0]['application_ids'] . ')');

if ($appQuery->num_rows() > 0)

{

$applications = array();

foreach ($appQuery->result_array() as $appRow)

{

$applications[$appRow['application_id']] = $appRow;

}

return $applications;

}

else  return false;

}

else  return false;

}

function isApplication($appName)

{

$this->db->where('application_name', $appName);

$this->db->limit(1, 0);

$appQuery = $this->db->get('applications');

if ($appQuery->num_rows() > 0)

{

$appRow = $appQuery->result_array();

return $appRow[0]['application_id'];

}

else  return false;

}

function isUserCanAccessTheApplication($applicationId)

{

$this->db->select('application_ids');

$this->db->where('user_id', $this->session->userdata('user_id'));

$this->db->limit(1, 0);

$userAppQuery = $this->db->get('users_applications');

if ($userAppQuery->num_rows() > 0)

{

$userAppRow = $userAppQuery->result_array();

$userAppArray = explode(',', $userAppRow[0]['application_ids']);

if (array_search($applicationId, $userAppArray) === false) return false;

else  return true;

}

else  return false;

}

function getLanguages()

{

$this->db->select('lang_code, lang_name');

$this->db->from('languages');

$langQuery = $this->db->get();

$languages = array();

if ($langQuery->num_rows() > 0)

{

foreach ($langQuery->result_array() as $langRow)

{

$languages[] = $langRow;

}

}

return $languages;

}

}

 

?>

//////////////////////////////////////////////////////////////////////////////////

[dreamwest]

your simply calling a function that doesnt exist - num_rows() on a non-object