Return a single row in model, pass it to controller and view - Codeigniter

Question

Sorry for posting such a noob question, but I've had hard times when working with returning a single row from database and pass it to model. Here's my method from my model:

public function test($user_id)
{
    $query = $this->db->query("SELECT COUNT(*) AS test FROM test WHERE user_id = '.$user_id.'");

    return $query->first_row('array');
}

Here's an example of my controller with some other returned value from my model:

class MY_Controller extends CI_Controller
{
    public $layout;
    public $id;
    public $data = array();

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

        $this->output->nocache();

        $this->load->model('subject_model');
        $this->load->model('user_model');
        $this->load->model('survey_model');
        $this->id = $this->session->userdata('user_id');

        $this->data['check_if_already_posted_it_survey'] = $this->survey_model->checkIfAlreadyPostedSurvey('it_survey', $this->id);
        $this->data['check_if_already_posted_lvis_survey'] = $this->survey_model->checkIfAlreadyPostedSurvey('lvis_survey', $this->id);
        $this->data['test']= $this->survey_model->test($this->id);


        $this->layout = 'layout/dashboard';
}

I can pass all the values from that data array to my view except "test". I've basically tried everything.

CheckIfAlreadyPostedSurvey method will return number of rows with num_rows and I can easily print the value from them in my view by writing:

<?=$check_if_already_posted_it_survey?>

What should I do to print out that "test" in my view?

Thanks in advance and apologizes...

Answer 1

我可能猜错了问题，但是您是否尝试过

echo $this->survey_model->test($this->id);

Answer 2

Try this:

public function test($user_id)
{
    $query = $this->db->query("SELECT COUNT(*) AS test FROM test WHERE user_id = '".$user_id."'");

    return $query->row()->test;
}

This will return a single row as an object and then the referenced row name, which in this case is test .

The following will also work.

public function test($user_id)
{
    $query = $this->db->query("SELECT * FROM test WHERE user_id = '".$user_id."'");

    return count($query->result());
}

You also messed up the quoting in your SQL statement.