Split login fail condition in 2 conditions to cover “account inactive” case

I have made a Registration and Login application with Codeigniter 3.

When someone fills the *Registration form* and submits it successfully, the "active" column of the "users" table receives the value 0, as visible in the image bellow:



Users will have to activate their accounts before being able to sign in.

The user_login() function inside the Usermodel:

   

PHP Code:

public function user_login($email, $password, $active) {
      $query = $this->db->get_where('users', ['email' => $email, 'password' => md5($password), 'active' => 1]);
      return $query->row();
 } 


In the Signin.php controller I have the signin() method: 

 

PHP Code:

 public function signin()
      {  
      $this->form_validation->set_rules('email', 'Email', 'required|trim|valid_email');
      $this->form_validation->set_rules('password', 'Password', 'required|trim');
      $this->form_validation->set_error_delimiters('<p class="error">', '</p>');
      if ($this->form_validation->run())
      {
        $email = $this->input->post('email');
        $password = $this->input->post('password');
        $this->load->model('Usermodel');
        $current_user = $this->Usermodel->user_login($email, $password);
          // If we find a user
        if ($current_user) {
          // If the user found is active
          if ($current_user->active == 1) {
            $this->session->set_userdata(
             array(
              'user_id' => $current_user->id,
              'user_email' => $current_user->email,
              'user_first_name' => $current_user->fname,
              'user_active' => $current_user->active,
              'is_logged_in' => TRUE
              )
             );
            redirect('home');  
          } else {
            // If the user found is NOT active
            $this->session->set_flashdata("signin_failure", "Your account has not been activated");
            redirect('signin'); 
          }
        } else {
          // If we do NOT find a user
          $this->session->set_flashdata("signin_failure", "Incorrect email or password");
          redirect('signin'); 
        }
      }
      else
      {
       $this->load->view('signin');
     }
 } 


but there is a flaw in it because even when the email and password are correct, but the user is inactive, the message is: "Incorrect email or password" Instead of "Your account has not been activated".