sfw 强悍的附件上传功能 -- 一周从无到有开发一个完整的企业站
后端代码:
<?php
/**
* 附件上传管理
*
*/
class PQAdmin_AttachmentController extends PQAdmin_BaseController {
function actionNew(){
$allowext = $this->_request_->request('allowext',null);
$callback = $this->_request_->request('callback',null);
$label = $this->_request_->request('label',null);
$this->_view['allowext'] = $allowext;
$this->_view['callback'] = $callback;
$this->_view['label'] = $label;
$this->_viewname = 'show';
}
function actionSave(){
$allowext = $this->_request_->request('allowext',App::ini('_uploader/allowext'));
$callback = $this->_request_->request('callback',null);
$label = $this->_request_->request('label',null);
$maxSize = App::ini('_uploader/maxsize');
$uploadDir = App::ini('_uploader/dir');
$uploadBaseurl = App::ini('_uploader/baseurl');
$prefix = date('Y/m/d',CURRENT_TIMESTAMP);
do {
if (is_dir($uploadDir) && is_writable($uploadDir)){
$fileDir = $uploadDir . '/' . $prefix;
if (is_dir($fileDir)){
if (!is_writable($fileDir)){
js_alert("上传文件目录[{$fileDir}]不可写,请检查权限设置",'',$this->_request_->referer());
}
}else {
if (!FileSystemHelper::mkdirs($fileDir)){
js_alert("上传文件目录[{$fileDir}]创建失败,请检查权限设置",'',$this->_request_->referer());
}
}
break;
}
js_alert("上传文件目录[{$uploadDir}]不可写,请检查权限设置",'',$this->_request_->referer());
} while(false);
$uploader = new FileUploaderHelper();
$files = $uploader->getFiles();
$fileInfo = array();
// 这个地方每次只会上传一个文件
foreach ($files as $file) {
if (!$file->check($allowext, $maxSize)) {
// 上传的文件类型不符或者超过了大小限制。
js_alert(App::ini('_uploader/errorstext'),'',$this->_request_->referer());
return false;
}
// 生成唯一的文件名（重复的可能性极小）
$id = md5(time() . $file->getFilename() . $file->getSize() . $file->getTmpName());
$filename = $id . '.' . strtolower($file->getExt());
$file->move($fileDir . '/' . $filename);
$fileInfo['name'] = "/{$prefix}/{$filename}";
$fileInfo['size'] = $file->getSize();
$fileInfo['mime'] = $file->getMimeType();
break;
}
$this->_view['allowext'] = $allowext;
$this->_view['callback'] = $callback;
$this->_view['label'] = $label;
$this->_view['callbackObject'] = json_encode($fileInfo);
$this->_viewname = 'show';
}
/**
* 执行控制器动作之前调用
*/
protected function _beforeExecute($actionName)
{
// 检查用户是否为登录状态
// if (!PQAdmin_UserModel::isLogin()){
// redirect(url('application','logout'));
// }
}
}
要使用的地方 只需如此调用即可:
<script>
function uploadImg(fileInfo){
console.log(fileInfo);//.uploadImage.value
}
</script>
<div>
<iframe src="<?php echo url('attachment','new',null,array('allowext'=>'jpg','callback'=>'window.parent.uploadImg','label'=>h('上传图片:')));?>" style="border:0px;height:30px;width: 100%" frameborder="0" cellspacing="0" allowTransparency="true" scrolling="no" resizable="no"></iframe>
</div>
上传成功会自动执行回调函数:
输出结果:
{ name="/2011/05/22/03c4524eccb3b33226a83e7817883727.jpg", size=39583, mime="image/jpeg"}
贴一个完整的demo:
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<link href="<?php echo $_base_dir;?>static/css/style.css" rel="stylesheet" type="text/css" />
<script type="text/javascript" src="<?php echo $_base_dir;?>static/kindeditor/kindeditor-min.js"></script>
<script type="text/javascript">
function changeSelect(qtype){
document.getElementById('qtype_href').style.display = 'none';
document.getElementById('qtype_text').style.display = 'none';
switch(parseInt(qtype.value)){
case 1:
document.getElementById('qtype_href').style.display = '';
break;
case 2:
document.getElementById('qtype_text').style.display = '';
break;
default:
break;
}
}
function fnOnSubmit(form) {
var qtype = document.getElementById('qtype');
form.ctype.value = qtype.value;
switch(parseInt(qtype.value)){
case 1:
form.ctext.value = document.getElementById('qhref').value;
if (form.ctext.value == ''){
alert('必须输入栏目地址');
document.getElementById('qhref').focus();
return false;
}
break;
case 2:
form.ctext.value = KE.util.getData('qtext');
if (form.ctext.value == ''){
alert('必须输入栏目内容');
document.getElementById('qtext').focus();
return false;
}
break;
default:
form.ctext.value = '';
break;
}
return true;
}
KE.show({
id : 'qtext',
resizeMode : 1,
allowPreviewEmoticons : false,
allowUpload : false,
items : [
'fontname', 'fontsize', '|', 'textcolor', 'bgcolor', 'bold', 'italic', 'underline',
'removeformat', '|', 'justifyleft', 'justifycenter', 'justifyright', 'insertorderedlist',
'insertunorderedlist', '|', 'emoticons', 'image', 'link']
});
function uploadFile(fileInfo){
var attachments = document.getElementById('attachments');
var tpl = '<p><a class="attachment" href="' + fileInfo.baseurl + fileInfo.name + '">'
+ fileInfo.name + ' (Mime: ' + fileInfo.mime + ')</a></p>'
attachments.innerHTML += tpl;
}
</script>
</head>
<body>
<div id="content">
<h3><?php echo h(sprintf('设置栏目 [%s] 的详情数据', $class['name'])); ?></h3>
<p>选择内容类型:
<?php
$this->_control('dropdownlist', 'qtype',
array(
'items' => array('空'=>0,'URL链接'=>1,'文本数据'=>2),
'selected' => $class['ctype'],
'onChange' => 'changeSelect(this)'
)
);
?>
</p>
<p id="qtype_href" style="<?php echo $class['ctype'] != 1 ? 'display: none' : '';?>">输入栏目地址:
<?php $this->_control('textbox', 'qhref', array('value' => $class['ctext'],'size' => 40,)); ?>
</p>
<p id="qtype_text" style="<?php echo $class['ctype'] != 2 ? 'display: none' : '';?>">输入栏目内容:<br/>
<?php $this->_control('memo', 'qtext', array('value' => $class['ctext'],'style'=>"width:650px;height:300px;visibility:hidden;")); ?>
<br/>
<div id="attachments"></div>
<iframe src="<?php echo url('attachment','new',null,array('allowext'=>'jpg|png|gif|bmp|rar|zip|pdf','callback'=>'window.parent.uploadFile','label'=>h('上传新文件:')));?>" style="border:0px;height:30px;width: 100%" frameborder="0" cellspacing="0" allowTransparency="true" scrolling="no" resizable="no"></iframe>
</p>
<form id="form1" name="form1" method="post" action="<?php echo url('zhsysmodule','saveMetadata');?>" onsubmit="return fnOnSubmit(this);">
<p>
<?php $this->_control('hidden', 'id',array('value'=>$class['id'])); ?>
<?php $this->_control('hidden', 'ctype'); ?>
<?php $this->_control('hidden', 'ctext'); ?>
<input name="Save" type="submit" id="Save" value="<?php echo h(' 提 交 '); ?>" />
<input name="Cancel" type="button" id="Cancel" value="<?php echo h(' 取 消 '); ?>" onclick="document.location.href = '<?php echo $backurl; ?>';"/>
</p>
</form>
</div>
</body>
</html>
截图如下:
