form validation CodeIgniter error - php

Question

Anyone know about form validation in CI here ?
As long this script in my function, it will give error
I dont know why, I just copy paste from the user guide, and put it in my function
and also, I cant do autoload.php -> $autoload['libraries'] = array('database', 'session');
and this is the code for form validation :
$this->load->helper(array('form', 'url'));
$this->load->library('form_validation');
$this->form_validation->set_rules('item_name', 'Item Name', 'is_numeric|required');
$this->form_validation->set_rules('item_price', 'Item Price', 'required');
$this->form_validation->set_rules('item_description', 'Item Description', 'required');
if ($this->form_validation->run() == FALSE)
{
$this->create();
}else{
$this->load->view('formsuccess');
}
please help me guys..
first error of form validation
second error of form validation
complete code :
function submit(){
$this->load->library('form_validation');
$this->load->helper('form', 'url');
$this->form_validation->set_rules('item_name', 'Item Name', 'is_numeric|required');
$this->form_validation->set_rules('item_price', 'Item Price', 'required');
$this->form_validation->set_rules('item_description', 'Item Description', 'required');
if ($this->form_validation->run() == FALSE)
{
$this->create();
}
else
{
$this->load->view('formsuccess');
}
}

Answer 1

Try This:
$this->load->model('login_database','file');
$this->load->helper(array('form', 'url'));
$this->load->library('form_validation');
$this->form_validation->set_rules('item_name', 'Item Name', 'is_numeric|required');
$this->form_validation->set_rules('item_price', 'Item Price', 'required');
$this->form_validation->set_rules('item_description', 'Item Description', 'required');
if ($this->form_validation->run() == FALSE)
{
$this->load->view('formsuccess');
}else
{
$this->create();
}

Answer 2

when you using HMVC
dont forget to use MX_controller.
This is the full solution of my problem :
Looks like your using HMVC Please show the full template.php file not if controller file should be upper case for first letter of class name and file name example Template.php and class Template extends MX_Controller{}