Codeigniter getting result from model - database

Question

i have a controller called main...
here i have this code.
$data['companies'] = $this->companies->getAllCompanies();
$this->load->view('main_view',$data);
i have loaded the model called companies in the contructer like this:
$this->load->model('companies');
and this is my model:
class Companies extends CI_Model{
function getAllCompanies()
{
$this -> db -> select('*');
//$this -> db -> from('companies');
$query = $this -> db -> get('companies');
if($query -> num_rows() > 0)
{
return $query->result();
}
else
{
return false;
}
}}
i am getting this error:
( ! ) Fatal error: Call to a member function execute() on a non-object in C:\wamp\www\awt\system\database\drivers\pdo\pdo_driver.php on line 193
Call Stack
5 0.0299 4303144 Companies->getAllCompanies( ) ..\main.php:32
whats wrong in this code plz help me!

Answer 1

Sounds like that you have some kind of sql error. Try enabling the db_debug flag in application/config/database.php and check the table names and such. You can try to print the generated sql query at where at the place of the error too (under system/database/drivers/pdo/pdo_driver.php:191).

Answer 2

class Companies extends CI_Model{
function getAllCompanies()
{
$this -> db -> select('*');
//$this -> db -> from('companies');
$result = $this -> db -> get('companies');
if($query -> num_rows() > 0)
{
return $result;
}
else
{
return false;
}
}}
make the above changes.