如何从Codeigniter中的视图获取插入数据库表中的所有值

Question

我在codeigniter中有一个观点。当我在一个或两个字段中输入时，值来自数据库中的2个表。我在此视图中尝试了定价计算逻辑，其中每月，每周，每天的费率均来自台式计算机。定价计算后，它在一个字段中给出总费率。但是，所有每月，每周和每天的费率都需要插入另一个表中。我该怎么做？

我的控制器功能：

public function pricing()
    {
    $hire_mode = $this->input->post('hire_mode');
    $com_sno = $this->input->post('com_sno');
                $diff = $this->input->post('diff');
                $this->load->model('autocomplete_model');
                $result = $this->autocomplete_model->getRates($com_sno);
                $data = array();
                switch($hire_mode) {
                    case 0:
                        $rate = $result->mohr/30;
                        $total = $diff * $rate;
                        $data['rate'] = $result->mohr;
                        $data['total'] = $total;
                        break;
                case 1:
                    $rate = $result->wehr/7;
                    $total = $diff * $rate;
                    $data['rate'] = $result->mohr;
                    $data['total'] = $total;
                    break;
                case 2:
                    $rate = $result->dahr;
                    $total = $diff * $rate;
                    $data['rate'] = $result->mohr;
                    $data['total'] = $total;
                    break;
}
            echo json_encode($data);
}

在我看来json jquery：

    <script>
  $('#diff').change(function () {
    var hireMode = $('input[name=hire_mode]:checked').val();
    var diff = $(this).text();
    var com_sno = $('#com_sno').val();
    console.log(hireMode+'---'+diff+'---'+com_sno)
    $.ajax({ 
           url: "<?php echo base_url();?>autocomplete/pricing", 
           method: "POST", 
           data: {hire_mode:hireMode, com_sno:com_sno, diff:diff}, 
           dataType: 'JSON',
           success: function(res) { 
                $('#rate').val(res.rate);
                $('#total').val(res.total);
                console.log(res);
            } 
    });
  });