image_upload_model.PHP

<?PHP

class Image_upload_model extends CI_Model {

    var $image_path;

    //constructor containing the image path
    function Image_upload_model() {

        $this->image_path = realpath(APPPATH.'../assets/img');
    }

    //uploading the file
    function do_upload() {

        $config = array(
            'allowed_types' => 'jpg|jpeg|gif|png','upload_path' => $this->image_path
        );
        $this->load->library('upload',$config);
        $this->upload->do_upload();
    }
}
?>

homemodel.PHP

<?PHP

class homeModel extends CI_Model {

    //inserting into the table tenants
    function addTenants() {

        $this->load->model('Image_upload_model');

        $data = array(
            'Fname' => $this->input->post('Fname'),'Lname' => $this->input->post('Lname'),'contact' => $this->input->post('contact'),'email' => $this->input->post('email'),'location' => $this->input->post('location'),'img_url' => " "//the filename of the image should go here
        );

        $this->db->insert('tenants',$data);
    }
}
?>

控制器
homecontroller.PHP

<?PHP

class HomeController extends CI_Controller {

    public function index() {

        $this->load->helper('form');
        $this->load->helper('html');
        $this->load->model('homemodel');
        $this->load->model('Image_upload_model');

        if ($this->input->post('submit') == 'Submit') {

            $this->homemodel->addTenants();
            echo 'inserted';
            $this->Image_upload_model->do_upload();
            echo 'image uploaded';
        }
        $this->load->view('index.PHP');
    }
}
?>

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