CI框架(CodeIgniter)实现的数据库增删改查操作总结
发布时间：2021-05-24 15:12:12 所属栏目：PHP教程 来源：网络整理
导读：副标题#e# 本篇章节讲解CI框架(CodeIgniter)实现的数据库增删改查操作。分享给大家供大家参考，具体如下： controllers下的 cquery.php文件 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
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副标题[/!--empirenews.page--]
本篇章节讲解CI框架(CodeIgniter)实现的数据库增删改查操作。分享给大家供大家参考，具体如下： controllers下的 cquery.php文件 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,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 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,$answer) { //防止select出的数据存在乱码问题 //mysql_query("SET NAMES GBK"); //SQL语句 $sql = "INSERT INTO user_info_t (member_name,password,user_real_name,born_day,e_mail,question,answer) " . "VALUES ('$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,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,$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; } }（编辑：广州站长网） 【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容! |
