small blog help needed passing data

[eluser]echo sara[/eluser]
Hi

I am currently trying to make a small testing blog. Iam currently stuck on one line (getting a error) I need assistance figuring thats wrong with that line. I also need assistance on if it was coded right? can someone skim through it and see if it makes sense.
any advise is welcome as well.

my error was on line 16 on the model which is

Code:

if ($data_retrive->num_row()> 0) {

Controller

Code:

function entrytest($data) {
        $this->load->model('Entrymodel');
        $title = $this->input->post('title');
        $comment = $this->input->post('comment');
        $this->Entrymodel->sendentry($title, $comment);
        
        if($data > 0){
        
        echo $data;
        $this->load->view('blogentryview', $data);
        }
        else {
            echo "there was no blogs added";
        
        }
        
    }

Model

Code:

function sendentry($title, $comment) {
        
        $query_str = "INSERT INTO entries (title, body) Value ('{$title}', '{$comment}')";

        $this->db->query($query_str, array($title, $comment));
        
        $data_retrive = $this->db->get('entries');
        if ($data_retrive->num_row()> 0) {
            
            foreach($data_retrive->result() as $row){
                
                $data[] = row;
                echo $row->title;
                
            }
            return $data;
        }
                        
    }

Thank You!!!

Sara