Database Forge Class does not create the table

Hi,

you must add a key (I put fields in model, i think it's better).
Your model:

PHP Code:

<?php
defined('BASEPATH') OR exit('No direct script access allowed');
class Table_model extends CI_Model {

    public function __construct()
    {
        $this->load->database();
        $this->load->dbforge();
    }
    public function create_table()
    {
        $fields = array(
        'blog_id' => array(
                'type' => 'INT',
                'constraint' => 5,
                'unsigned' => TRUE,
                'auto_increment' => TRUE
        ),
        'blog_title' => array(
                'type' => 'VARCHAR',
                'constraint' => '100',
                'unique' => TRUE,
        ),
        'blog_author' => array(
                'type' =>'VARCHAR',
                'constraint' => '100',
                'default' => 'King of Town',
        ),
        'blog_description' => array(
                'type' => 'TEXT',
                'null' => TRUE,
        ),
        );
        $this->dbforge->add_field($fields);
        $this->dbforge->add_key('blog_id',true);
        return $this->dbforge->create_table('mytable',TRUE);
    }
} 


The controller:

PHP Code:

<?php
defined('BASEPATH') OR exit('No direct script access allowed');

class Welcome extends CI_Controller {

    public function index()
    {
            $this->load->model('Table_model');
            $create = $this->Table_model->create_table();
            if ($create) {
                echo 'Table created';
            } else {
                echo 'Failed to create table';
            }
    }
}