Question

Can we check in a MODEL [CODIGNITER] whether a mysql query returns true or false and based on the request in order to perform if else statement

A sql statement in model to perform whether if the sql statement gives num_rows>0 if it gives i need to perform a function else continue with other lines

Answer 1

Sure, here’s a contrived example.

class Blogmodel extends CI_Model {

    function __construct()
    {
        // Call the Model constructor
        parent::__construct();
    }

    function blog_exists( $id )
    {
        $query = $this->db->query('SELECT * FROM BLOG WHERE BLOG.ID = '. $id);

        if( $query->num_rows() > 0 )
            return true; 
        else 
            return false; 
    }


}