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php 在同一个表单中添加和修改数据 二

Jun 13, 2016 am 09:34 AM
data form

好吧,其实我这人不看重访问量的,但是今天一天的访问量比我去年发的一篇还要多.

我还是有点小小的惊讶的.作为一个做技术的屌丝.不,我不认为自己是屌丝,我觉得编程是一件高大山的职业.虽然很累,但是确实能让你每天的生活很充实.

No matter whether you believe it or not,anyhow I believe it.

今天接着上一篇来说,我们只是简单的文章的上传和修改.

如果涉及到附件呢.在修改的时候如果需要更换附件的时候,这真的是一件很头痛的事情.

我不知道大家是怎样实现的.下面我分享一下我的方法吧.

在页面中我是这样实现的.

我在后台进行添加操作.

首先我们再开始接收数据.如title,content的内容.判断内容是否为空,为空直接返回.

如果有我们需要判断一下是否有附件,如果有附件的话,我们先通过程序将其移动到项目的uploads文件夹中,

如果失败的话,我们就直接返回了.

好,上程序.

if(IS_POST){

$title = $_POST['title'];

$content = $_POST['content'];

if($title&&$content){

if($_FILES['file']['name'])

//开始对提交的附件进行处理.

如果成功,则可以得到我们附件的名称和上传的地址等信息,看你需要什么

如果失败的话

返回错误.

}

$arr = array(

'title' => $title,

'content' => $content;

'filename' => ///

'filepath' => ///

);

$flag = 进行插入操作..

if($flag) $str = "成功";

else $str = "失败";

$this->success("添加".$str,//跳到列表路由中.);

}

}//end of post.

//下面是模板内容....



现在我们如果是要修改该内容的话.

我想到了一个方法..

在页面中,如果有附件,我们显示图片的名称.如果需要修改,我们就将file的提交框显示出来..

我只写关键部分了哈..

//这里我们使用jquery来实现.

function show_file(o){

$this = $(o);

$this.hide();

$this.next().show();

}

搞定了...这样在前台还是比较美观的吧...

后台的逻辑有点复杂了..

首先你要判断是否有附件,如果没有,你就不能往数据库里面写入空值,如果数据库里本来有,现在用户没有修改附件,如果统一的往数据库里面写内容.则会覆盖..

我说下我的思路.

首先还是判断title,content是否为空.

如果不为空,判断是否有附件,如果有附件,我们就进行统一的接收操作.

if(IS_POST){

$title = $_POST['title'];

$content = $_POST['content'];

if($title&&$content){

//这里我们先定义一个数组..

$data = array();

if($_FILES['file']['name'])

//开始对提交的附件进行处理.

如果成功,则可以得到我们附件的名称和上传的地址等信息,看你需要什么

如果失败的话

返回错误.

成功

$data['filename'] = //文件名

$data['filepath'] = //文件路径.

}

$arr = array(

'title' => $title,

'content' => $content

);

if(!$_POST['id']){

$flag = 进行插入操作..

$type = "添加";

}else{

$flag = 进行修改操作.

$type = "修改";

}

if($flag) $str = "成功";

else $str = "失败";

$this->success($type.$str,//跳到列表路由中.);

}

}//end of post.

//下面是模板内容....



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