public function index()
{
    $registration = $this->Registration_model->get_all();

    $data = array(
        'registration_data' => $registration
    );

    $this->load->view('registration/registration_list', $data);

}
 public function do_upload()
    {
            $config['upload_path']          = './uploads/pictures/';
            $config['allowed_types']        = 'gif|jpg|png';
            $config['max_size']             = 10000000;
            $config['max_width']            = 10240000;
            $config['max_height']           = 76800000;

            $this->load->library('upload', $config);

            if ( ! $this->upload->do_upload('Image'))
            {
                    $error = array('error' => $this->upload->display_errors());

                    $this->load->view('registration_form', $error);
            }
            else
            {
                    $data = array('upload_data' => $this->upload->data());
                    return $data['upload_data']['file_name'];
            }
    }
public function read($id)
{
    $row = $this->Registration_model->get_by_id($id);
    if ($row) {
        $data = array(
    'id' => $row->id,
    'firstName' => $row->firstName,
    'lastName' => $row->lastName,
    'gender' => $row->gender,
    'address' => $row->address,
    'dob' => $row->dob,
    'Image' => $row->Image,
    );
        $this->load->view('registration/registration_read', $data);
    } else {
        $this->session->set_flashdata('message', 'Record Not Found');
        redirect(site_url('registration'));
    }
}

public function create()
{
    $data = array(
        'button' => 'Create',
        'action' => site_url('registration/create_action'),
    'id' => set_value('id'),
    'firstName' => set_value('firstName'),
    'lastName' => set_value('lastName'),
    'gender' => set_value('gender'),
    'address' => set_value('address'),
    'dob' => set_value('dob'),
    'Image' =>set_value('image'),
);
    $this->load->view('registration/registration_form', $data);
        }

public function create_action()
{
    $this->_rules();

    if ($this->form_validation->run() == FALSE) {
        $this->create();
    } else {
        $data = array(
    'firstName' => $this->input->post('firstName',TRUE),
    'lastName' => $this->input->post('lastName',TRUE),
    'gender' => $this->input->post('gender',TRUE),
    'address' => $this->input->post('address',TRUE),
    'dob' => $this->input->post('dob',TRUE),
    'Image' => $this->input->post('Image',TRUE),
    );

        $this->Registration_model->insert($data);
        $this->session->set_flashdata('message', 'The New Record was Successfuly Added');
        redirect(site_url('registration'));
    }
}

<div class="form-group">
        <label for="varchar">Image <?php echo form_open_multipart('upload/do_upload');?></label>
        <input type="file" class="form-control" name="Image" id="Image" height="50" />
    <br/>
    </div>
    <br/>
    <input type="hidden" name="id" value="<?php echo $id; ?>" />
    <button type="submit" class="btn btn-primary"name="userSubmit"><?php echo $button ?></button>

public $table = 'registration';
public $id = 'id';
public $order = 'DESC';

function __construct()
{
    parent::__construct();
}

// get all
function get_all()
{
    $this->db->order_by($this->id, $this->order);
    return $this->db->get($this->table)->result();
}

// get data by id
function get_by_id($id)
{
    $this->db->where($this->id, $id);
    return $this->db->get($this->table)->row();
}

// get total rows
function total_rows($q = NULL) {
    $this->db->like('id', $q);
$this->db->or_like('firstName', $q);
$this->db->or_like('lastName', $q);
$this->db->or_like('gender', $q);
$this->db->or_like('address', $q);
$this->db->or_like('dob', $q);
$this->db->or_like('Image', $q);
$this->db->from($this->table);
    return $this->db->count_all_results();
}

// get data with limit and search
function get_limit_data($limit, $start = 0, $q = NULL) {
    $this->db->order_by($this->id, $this->order);
    $this->db->like('id', $q);
$this->db->or_like('firstName', $q);
$this->db->or_like('lastName', $q);
$this->db->or_like('gender', $q);
$this->db->or_like('address', $q);
$this->db->or_like('dob', $q);
$this->db->or_like('Image', $q);
$this->db->limit($limit, $start);
    return $this->db->get($this->table)->result();
}

// insert data
function insert($data)
{
    $this->db->insert($this->table, $data);
}

// update data
function update($id, $data)
{
    $this->db->where($this->id, $id);
    $this->db->update($this->table, $data);
}

// delete data
function delete($id)
{
    $this->db->where($this->id, $id);
    $this->db->delete($this->table);
}