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>