Php Codeigniter模型未插入值

这是我在CI中的第二个web应用程序

我试图从表单（提交时）中获取一个值并将其插入数据库

我有一个控制器“urlsubmission”：

---

我做错了什么？

您没有运行SQL查询。这样做

$newDomain = "INSERT INTO ClientDomain(tld) VALUES('".$this->db->escape_str($postedTLD)."')";
$this->db->query($newDomain);

或者可以使用简单的查询（）

---

您声明了INSERT语句，但从未执行过它？

很好，我知道我做错了什么。我真傻。谢谢@Cryptic！

<?php

    class Domaincheckmodel extends CI_Model{

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


        function verifyduplicates(){
            #PREPARE DATA
            $sql = "SELECT tld from ClientDomain WHERE tld = ?";
            $postedTLD = $_POST['urlInput'];    // Get unsanitized data
            $endquery = $this->db->query($sql,array($this->db->escape_str($postedTLD))); // Query db

            #CONDITION
            if($endquery->num_rows() > 0){
                $this->load->view('err/domainexists'); ##domain already used
                ## please login..
            } 

            else{ #number of rows must be 0, insert into db
                $newDomain = "INSERT INTO ClientDomain(tld) VALUES('".$this->db->escape_str($postedTLD)."')";
                $this->load->view('success/domainfree');
                ## please register
            }
        }    
    }

    ?>

<h2>Domain Exists</h2>

<h2>Domain free</h2>

$autoload['libraries'] = array('database');

$newDomain = "INSERT INTO ClientDomain(tld) VALUES('".$this->db->escape_str($postedTLD)."')";
$this->db->query($newDomain);

$newDomain = "INSERT INTO ClientDomain(tld) VALUES('".$this->db->escape_str($postedTLD)."')";
$this->db->simple_query($newDomain);