Yii CUploadedFile带验证的多文件上传

			
			<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>

[html]
			
			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;   
		
			}

控制器

[html]
			
			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>";   
		
			    }

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