CI框架下的PHP增删改查总结

controllers下的 cquery.php文件

<?php  
  
class CQuery extends Controller {  
      
    //构造函数  
    function CQuery() {  
        parent::Controller();  
//      $this->load->database();  
          
    }  
      
    function index() {  
        //调用model  其中train为外层文件夹   MQuery为model名称  queryList为重命名  
        $this->load->model('train/MQuery','queryList');  
        //获得返回的结果集   这里确定调用model中的哪个方法  
        $result = $this->queryList->queryList();  
        //将结果集赋给res  
        $this->smarty->assign('res',$result);  
        //跳转到显示页面  
        $this->smarty->view('train/vquery.tpl');     
    }  
      
    //进入新增页面  
    function addPage() {  
        $this->smarty->view('train/addPage.tpl');  
    }  
      
    //新增  
    function add() {  
        //获得前台数据  
        //用户名  
        $memberName = $this->input->post('memberName');  
        //密码  
        $password = $this->input->post('password');  
        //真实姓名  
        $userRealName = $this->input->post('userRealName');  
        //性别  
        $sex = $this->input->post('sex');  
        //出生日期  
        $bornDay = $this->input->post('bornDay');  
        //e_mail  
        $eMail = $this->input->post('eMail');  
        //密码问题  
        $question = $this->input->post('question');  
        //密码答案  
        $answer = $this->input->post('answer');  
        //调用model  
        $this->load->model('train/MQuery','addRecord');  
        //向model中的addRecord传值  
        $result = $this->addRecord->addRecord($memberName,$password,$userRealName,$sex,$bornDay,$eMail,$question,$answer);  
        //判断返回的结果,如果返回true,则调用本页的index方法,不要写 $result == false 因为返回的值未必是false 也有可能是""   
        if ($result) {  
            $this->index();  
        } else {  
            echo "add failed.";  
        }  
    }  
      
    //删除  
    function deletePage() {  
        //获得ID  
        $deleteID = $this->uri->segment(4);  
        //调用model  
        $this->load->model('train/MQuery','delRecord');  
        //将值传入到model的delRecord方法中  
        $result = $this->delRecord->delRecord($deleteID);  
        //判断返回值  
        if ($result) {  
            $this->index();  
        } else {  
            echo "delect failed.";  
        }  
    }  
      
    //修改先查询  
    function changePage() {  
        $changeID = $this->uri->segment(4);  
        $this->load->model('train/MQuery','changeRecord');  
        $result = $this->changeRecord->changeRecord($changeID);  
        //将结果集赋给res  
        $this->smarty->assign('res',$result);  
          
        //跳转到显示页面  
        $this->smarty->view('train/changePage.tpl');  
    }   
      
    //修改  
    function change() {  
        //获得前台数据  
        //ID  
        $ID = $this->input->post('id');  
        //用户名  
        $memberName = $this->input->post('memberName');  
        //密码  
        $password = $this->input->post('password');  
        //真实姓名  
        $userRealName = $this->input->post('userRealName');  
        //性别  
        $sex = $this->input->post('sex');  
        //出生日期  
        $bornDay = $this->input->post('bornDay');  
        //e_mail  
        $eMail = $this->input->post('eMail');  
        //密码问题  
        $question = $this->input->post('question');  
        //密码答案  
        $answer = $this->input->post('answer');  
        //调用model  
        $this->load->model('train/MQuery','change');  
        //向model中的change传值  
        $result = $this->change->change($ID,$memberName,$password,$userRealName,$sex,$bornDay,$eMail,$question,$answer);  
        //判断返回的结果,如果返回true,则调用本页的index方法,不要写 $result == false 因为返回的值未必是false 也有可能是""   
        if ($result) {  
            $this->index();  
        } else {  
            echo "change failed.";  
        }  
    }  
}  

models中的 mquery.php 文件

<?php  
  
class MQuery extends Model {  
    //构造函数  
    function MQuery() {  
        parent::Model();  
        //连接数据库  
        $this->load->database();  
    }  
      
    //查询列表  
    function queryList() {  
        //防止select出的数据存在乱码问题  
        //mysql_query("SET NAMES GBK");  
        //SQL语句  
        $sql = "SELECT ID,member_name,sex,e_mail FROM user_info_t";  
        //执行SQL   
        $rs = $this->db->query($sql);  
        //将查询结果放入到结果集中  
        $result = $rs->result();  
        //关闭数据库  
        $this->db->close();  
        //将结果集返回  
        return $result;  
    }  
      
    //新增  
    function addRecord($memberName,$password,$userRealName,$sex,$bornDay,$eMail,$question,$answer) {  
        //防止select出的数据存在乱码问题  
        //mysql_query("SET NAMES GBK");  
        //SQL语句  
        $sql = "INSERT INTO user_info_t (member_name,password,user_real_name,sex,born_day,e_mail,question,answer) " .  
                "VALUES ('$memberName','$password','$userRealName','$sex','$bornDay','$eMail','$question','$answer')";  
        //执行SQL   
        $result = $this->db->query($sql);  
        //关闭数据库  
        $this->db->close();  
        //返回值  
        return $result;  
    }  
      
    //删除  
    function delRecord($deleteID) {  
        //防止select出的数据存在乱码问题  
        //mysql_query("SET NAMES GBK");  
        $sql = "DELETE FROM user_info_t WHERE ID = $deleteID";  
        $result = $this->db->query($sql);  
        $this->db->close();  
        return $result;  
    }  
      
    //修改前查询  
    function changeRecord($changeID) {  
        //防止select出的数据存在乱码问题  
        //mysql_query("SET NAMES GBK");  
        $sql = "SELECT ID,member_name,password,user_real_name,sex,born_day,e_mail,question,answer FROM user_info_t WHERE ID = $changeID";  
        //执行SQL   
        $rs = $this->db->query($sql);  
        $result = $rs->row();//$result = $rs[0]  
        //关闭数据库  
        $this->db->close();  
        //将结果集返回  
        return $result;  
    }  
      
    //修改  
    function change($ID,$memberName,$password,$userRealName,$sex,$bornDay,$eMail,$question,$answer) {  
        //防止select出的数据存在乱码问题  
        //mysql_query("SET NAMES GBK");  
        //SQL语句  
        $sql = "update user_info_t set member_name = '$memberName',password = '$password', user_real_name = '$userRealName'," .  
                "sex = '$sex',born_day = '$bornDay',e_mail = '$eMail',question = '$question',answer = '$answer'" .  
                "where ID = $ID";  
        //执行SQL   
        $result = $this->db->query($sql);  
        //关闭数据库  
        $this->db->close();  
        //返回值  
        return $result;  
    }  
}  

views 下的 addPage.tpl文件

<html>  
    <head>  
    </head>  
    <body><form action="{{site_url url='train/cquery/add'}}" method="post">  
        <table border='1'>  
              
            <tr>  
                <td>用户名</td>  
                <td><input type="text" class="text" name="memberName" id="memberName"/></td>  
            </tr>  
            <tr>  
                <td>密码</td>  
                <td><input type="text" class="text" name="password" id="password"/></td>  
            </tr>  
            <tr>  
                <td>真实姓名</td>  
                <td><input type="text" class="text" name="userRealName" id="userRealName"/></td>  
            </tr>  
            <tr>  
                <td>性别</td>  
                <td><input type="text" class="text" name="sex" id="sex"/></td>  
            </tr>  
            <tr>  
                <td>出生日期</td>  
                <td><input type="text" class="text" name="bornDay" id="bornDay"/></td>  
            </tr>  
            <tr>  
                <td>e_mail</td>  
                <td><input type="text" class="text" name="eMail" id="eMail"/></td>  
            </tr>  
            <tr>  
                <td>密码问题</td>  
                <td><input type="text" class="text" name="question" id="question"/></td>  
            </tr>  
            <tr>  
                <td>密码答案</td>  
                <td><input type="text" class="text" name="answer" id="answer"/></td>  
            </tr>  
              
        </table>  
        <table>  
            <tr>  
                <td><input type="submit" class="button" name="OK" value="提交" />  
                </td>  
            </tr>  
        </table></form>  
    </body>  
</html>  

changePage.tpl 文件

<html>  
    <head>  
    </head>  
    <body><form action="{{site_url url='train/cquery/change'}}" method="post">  
        <table border='1'><input type="hidden" name="id" value="{{$res->ID}}" />  
            <tr>  
                <td>用户名</td>  
                <td><input type="text" class="text" name="memberName" id="memberName" value="{{$res->member_name}}" /></td>  
            </tr>  
            <tr>  
                <td>密码</td>  
                <td><input type="text" class="text" name="password" id="password"  value="{{$res->password}}" /></td>  
            </tr>  
            <tr>  
                <td>真实姓名</td>  
                <td><input type="text" class="text" name="userRealName" id="userRealName" value="{{$res->user_real_name}}"/></td>  
            </tr>  
            <tr>  
                <td>性别</td>  
                <td><input type="text" class="text" name="sex" id="sex" value="{{$res->sex}}"/></td>  
            </tr>  
            <tr>  
                <td>出生日期</td>  
                <td><input type="text" class="text" name="bornDay" id="bornDay" value="{{$res->born_day}}"/></td>  
            </tr>  
            <tr>  
                <td>e_mail</td>  
                <td><input type="text" class="text" name="eMail" id="eMail" value="{{$res->e_mail}}"/></td>  
            </tr>  
            <tr>  
                <td>密码问题</td>  
                <td><input type="text" class="text" name="question" id="question" value="{{$res->question}}"/></td>  
            </tr>  
            <tr>  
                <td>密码答案</td>  
                <td><input type="text" class="text" name="answer" id="answer" value="{{$res->answer}}"/></td>  
            </tr>  
              
        </table>  
        <table>  
            <tr>  
                <td><input type="submit" class="button" name="OK" value="提交" />  
                </td>  
            </tr>  
        </table></form>  
    </body>  
</html>  

vquery.tpl 文件

<html>  
    <head>  
        <title></title>  
    </head>  
      
    <body>  
        <table border='1'>  
            <tr>  
                <td>用户名</td>  
                <td>性别</td>  
                <td>e_mail</td>  
                <td>操作</td>  
            </tr>  
            {{foreach from=$res item=row}}  
            <tr>  
                <input type="hidden" value={{$row->ID}}>  
                <td>{{$row->member_name}}</td>  
                <td>{{$row->sex}}</td>  
                <td>{{$row->e_mail}}</td>  
                <td><a href="{{site_url url='train/cquery/deletePage'}}/{{$row->ID}}">删除</a><a href="{{site_url url='train/cquery/changePage'}}/{{$row->ID}}">修改</a></td>  
            </tr>  
            {{/foreach}}  
        </table>  
        <a href="{{site_url url='train/cquery/addPage'}}" mce_href="{{site_url url='train/cquery/addPage'}}">add</a>  
    </body>  
</html>