Codeigniter - Call to undefined method CI_DB_mysql_driver:: - codeigniter

Question

I am getting this error "Fatal error: Call to undefined method CI_DB_mysql_driver::findVenueInfo()" when I try to use one of my models.
I have a view with this anchor:
echo anchor('welcome/searchVenue/' . $row->venue_id, $row->venue);
which generates a link like: http://localhost/ci-llmg/index.php/welcome/searchVenue/1
the method called is
function searchVenue()
{
$this->load->model('venues');
//get venue info
$data['info'] = $this->venues->findVenueInfo($this->uri->segment(3)); //this line generates the error
}
and the findVenueInfo function in the model (venues.php) is:
function findVenueInfo($id)
{
$data = array();
$this->db->where('id', $id);
$Q = $this->db->get('venues');
if ($Q->num_rows() > 0)
{
foreach ($Q->result() as $row)
{
$data[] = $row;
}
}
$Q->free_result();
return $data;
}
..but the result of this is Fatal error: Call to undefined method CI_DB_mysql_driver::findVenueInfo()
I'm probably missing something stupid, but can't get it to work! What do you think?

Answer 1

Are you sure your index.php file at the root of ur project have included bootstrap in proper place
Go to the end of the index.php file and include the bootstrap file just before including codeigniter.php.
Your index.php file should have its end lines look like this.
/*
* --------------------------------------------------------------------
* LOAD THE BOOTSTRAP FILE
* --------------------------------------------------------------------
*
* And away we go...
*
*/
require_once APPPATH.'third_party/datamapper/bootstrap.php';
require_once BASEPATH.'core/CodeIgniter.php';

Answer 2

function findVenueInfo($id)
{
$data = array();
$this->db->select()->from('venues')->where('id', $id);<----change it to
$Q = $this->db->get();<----change it to
if ($Q->num_rows() > 0)
{
foreach ($Q->result() as $row)
{
$data[] = $row;
}
}
$Q->free_result();
return $data;
}

Answer 3

I was getting a similar error and found that in 3.0 I needed to enable query_builder in application/config/database.php
$query_builder = TRUE;