Codeigniter room booking form validation

Question

I'm trying to make a form for booking a room using form_validation to validate whether the room is already booked or not when user input the data into the form. I showed the output into table. Here's my validation:

function add_room()
{
    $this->form_validation->set_rules('start', 'Start Date', 'required|is_unique[calendar.start]');
    $this->form_validation->set_rules('start_t', 'Start Time', 'required|is_unique[calendar.start_t]');
    $this->form_validation->set_rules('end_t', 'End Time', 'required|is_unique[calendar.end_t]');
    $this->form_validation->set_rules('room', 'Room', 'required|is_unique[calendar.room]');
    $this->form_validation->set_rules('title', 'Title', 'required|trim|xss_clean');
    $this->form_validation->set_rules('user', 'NRP', 'required|trim|xss_clean');
    $this->form_validation->set_rules('nama', 'Name', 'required|trim|xss_clean');
    $this->form_validation->set_rules('ext', 'EXT', 'required|trim|xss_clean');
    $this->form_validation->set_rules('topic', 'Topic', 'required|trim|xss_clean');
    $this->form_validation->set_rules('attend', 'Attendees', 'required|trim|xss_clean');

    if ($this->form_validation->run() == FALSE) {
        $this->form_validation->run('start_t');
    }
    elseif ($this->form_validation->run('start_t') == TRUE) {
        $this->form_validation->run('end_t');
    }
    elseif ($this->form_validation->run('end_t') == TRUE) {
        $this->form_validation->run('start');
    }
    elseif ($this->form_validation->run('start') == TRUE) {
        $this->form_validation->run('room');
    }
    elseif ($this->form_validation->run('room') == TRUE) {
        $this->form_validation->run();
    }
    elseif ($this->form_validation->run() == TRUE) {
        $this->calendar->add_room();
    } else {
        validation_errors();
        $this->conf->msg('danger');
    }
    redirect('calendar/meeting');


}

I know my code is awful, I'm still not sure how to make the if structure. I want the validation check whether if the Room at the Start Time , End Time and Start Date is already booked or not. If it's already booked the validation would be false and showing error message . I'm not really good at CI . In fact, I'm new in this programming stuff. So, how can I make a proper booking room in CI ? Thanks for any help.

Answer 1

Put the errors that you want to validate in an array

$config = array( array('field' => 'bk_r_type_id', 'label' => 'bk_r_type_id Name', 'rules' => 'trim|required|max_length[100]') );

    $this->form_validation->set_rules($config);