Yii CUploadedFile带验证的多文件上传（三）
作者：zccst

注：上传文件是存放在数据库的一张表中。如果是存放在某一个文件路径下，则使用saveAs即可。

一、前端

<div id="upForms"><form id="fileitemdiv1" action="<?php echo $this->createUrl('repairUpload'); ?>" method="post" enctype="multipart/form-data" target="upload_target"><input type="file" name="repair_attached_file1" /> <input type="submit" name="submitBtn" value='立即上传' /><span id="upload_repairinfo_success1" style="color:red;"></span><input type="hidden" name="selectedIndex" value="1" /><!-- 记录上传成功后的id --><input type="hidden" name="upload_save_to_db_id" id="upload_save_to_db_id1" value="0" /></form><iframe id="upload_target" name="upload_target" src="#" style="width:0;height:0;border:0px solid #fff;"></iframe></div><div><input type="button" value="增加附件" onclick="addfile();"><input type="hidden" id="up_success_file_ids" /></div>

var filecount=1;// 新增一个上传文件控件function addfile(){var filediv = document.getElementById("upForms");var fileitemdiv = document.createElement("form");filecount++;var content = "<input type=file name=repair_attached_file"+filecount + ">  <input type=submit name=submitBtn value='立即上传' />  <a href='javascript:removefile("+filecount + ");'>删除</a>  <span id=upload_repairinfo_success"+filecount + " style='color:red;'></span><input type=hidden value="+filecount + " name=selectedIndex /> <input type=hidden name=upload_save_to_db_id id=upload_save_to_db_id"+filecount + " value=0 />";fileitemdiv.id       = "fileitemdiv"+filecount;fileitemdiv.method   = "post";fileitemdiv.enctype  = "multipart/form-data";fileitemdiv.target   = "upload_target";fileitemdiv.action   = "<?php echo $this->createUrl('repairUpload'); ?>";fileitemdiv.innerHTML = content;filediv.appendChild(fileitemdiv);}//删除指定上传文件控件function removefile(fileIndex){var filediv = document.getElementById("upForms");var fileitemdiv = document.getElementById("fileitemdiv"+fileIndex);filediv.removeChild(fileitemdiv);}//回调成功function successUpload(responseText,id,fileIndex){// 1,获取值var ids = document.getElementById("up_success_file_ids").value;if(ids){document.getElementById("up_success_file_ids").value = ids+','+id;}else{document.getElementById("up_success_file_ids").value = id;}// 2,本次上传成功，则覆盖之前上传成功的文件document.getElementById("upload_save_to_db_id"+fileIndex).value = id;// 3,提示上传成功var spanObj = document.getElementById("upload_repairinfo_success"+fileIndex);//spanObj.innerHTML = "上传成功";spanObj.innerHTML = responseText;}//回调失败function stopUpload(responseText,fileIndex){// 提示var spanObj = document.getElementById("upload_repairinfo_success"+fileIndex);spanObj.innerHTML = responseText;}

public function actionRepairUpload(){$index  = $this->request->getParam("selectedIndex");$pre_id = $this->request->getParam("upload_save_to_db_id");$inputFileName = "repair_attached_file".$index;$attach = CUploadedFile::getInstanceByName($inputFileName);$retValue = "";if($attach == null){$retValue = "提示：不能上传空文件。";}else if($attach->size > 2000000){$retValue = "提示：文件大小不能超过2M。";}else {$retValue = '恭喜，上传成功！';if($pre_id == 0){$f = file_get_contents($attach->tempName);$a = new Attachment();$a->ref_type = "failParts";$a->data = $f;$a->file_path = $attach->name;$a->save();$cur_id = $a->id;}else{$trans = Yii::app()->db->beginTransaction();try{$f = file_get_contents($attach->tempName);$a = new Attachment();$a->ref_type = "failParts";$a->data = $f;$a->file_path = $attach->name;$a->save();$cur_id = $a->id;$pre = Attachment::model()->findByPk($pre_id);$pre->delete();$trans->commit();}catch(Exception $e){$retValue = $e->getMessage();$cur_id = 0;$trans->rollback();}}echo "<script type='text/javascript'>window.top.window.successUpload('{$retValue}',$cur_id,$index)</script>";exit();}echo "<script type='text/javascript'>window.top.window.stopUpload('{$retValue}',$index)</script>";}