yii上传图片、yii上传文件、yii控件activeFileField使用

model

  public function rules()
  {
    // NOTE: you should only define rules for those attributes that
    // will receive user inputs.
    return array(
      array('hits', 'numerical', 'integerOnly'=>true),
      array('title', 'length', 'max'=>80),
      array('linkurl', 'length', 'max'=>255),
      array('imgpath','file','types'=>'jpg,gif,png','on'=>'insert'),
      array('thumb','file','types'=>'jpg,gif,png','on'=>'insert'),
      array('addtime', 'length', 'max'=>10),
      // The following rule is used by search().
      // Please remove those attributes that should not be searched.
      array('aid, title, linkurl, addtime, hits', 'safe', 'on'=>'search'),
    );
  }

Controller  控制器

  public function actionCreate()
  {
    $model=new Slide;

    // Uncomment the following line if AJAX validation is needed
    // $this->performAjaxValidation($model);

    if(isset($_POST['Slide']))
    {
      $model->attributes=$_POST['Slide'];
      $model->imgpath=CUploadedFile::getInstance($model,'imgpath');
      $model->thumb=CUploadedFile::getInstance($model,'thumb');
      if($model->imgpath)
      {
        $newimg = 'imgpath_'.time().'_'.rand(1, 9999).'.'.$model->imgpath->extensionName;
        //根据时间戳重命名文件名,extensionName是获取文件的扩展名
        $model->imgpath->saveAs('assets/uploads/slide/'.$newimg);
        $model->imgpath = 'assets/uploads/slide/'.$newimg;
        //将image属性重新命名
      }
      if($model->thumb)
      {
        $newthumb = 'thumb_'.time().'_'.rand(1, 9999).'.'.$model->thumb->extensionName;
        $model->thumb->saveAs('assets/uploads/slide/'.$newthumb);
        $model->thumb = 'assets/uploads/slide/'.$newthumb;
      }
      $model->addtime = time();
      if($model->save())
        $this->redirect(array('view','id'=>$model->aid));
    }

    $this->render('create',array(
      'model'=>$model,
    ));
  }

  /**
    * 修改
    */
  public function actionUpdate($id)
  {
    $model=$this->loadModel($id);

    // Uncomment the following line if AJAX validation is needed
    // $this->performAjaxValidation($model);

    if(isset($_POST['Slide']))
    {
      $model->attributes=$_POST['Slide'];
      $model->imgpath=CUploadedFile::getInstance($model,'imgpath');
      $model->thumb=CUploadedFile::getInstance($model,'thumb');
      if($model->imgpath)
      {
        $newimg = 'imgpath_'.time().'_'.rand(1, 9999).'.'.$model->imgpath->extensionName;
        //根据时间戳重命名文件名,extensionName是获取文件的扩展名
        $model->imgpath->saveAs('assets/uploads/slide/'.$newimg);
        $model->imgpath = 'assets/uploads/slide/'.$newimg;
        //将image属性重新命名
      } else {
        $model->imgpath = $_POST['imgpath2'];
      }
      if($model->thumb)
      {
        $newthumb = 'thumb_'.time().'_'.rand(1, 9999).'.'.$model->thumb->extensionName;
        $model->thumb->saveAs('assets/uploads/slide/'.$newthumb);
        $model->thumb = 'assets/uploads/slide/'.$newthumb;
      } else {
        $model->thumb = $_POST['thumb2'];
      }
      $model->addtime = time();
      if($model->save()) {
        $this->redirect(array('view','id'=>$model->aid));
      }
    }

    $this->render('update',array(
      'model'=>$model,
    ));
  }

view 视图

<?php $form=$this->beginWidget('CActiveForm', array(
  'id'=>'slide-form',
  'enableAjaxValidation'=>true,
  'htmlOptions'=>array('enctype'=>'multipart/form-data')
)); ?>

<table width="100%" cellspacing="0" class="table_form">
<tbody>
  <tr>
    <th width="100">广告标题：</th>
    <td>
    <?php echo $form->textField($model,'title',array('size'=>50,'maxlength'=>80)); ?>
                <?php echo $form->error($model,'title'); ?>
                </td>
  </tr>
  <tr>
    <th>链接地址：</th>
    <td>
                <?php echo $form->textField($model,'linkurl',array('size'=>50,'maxlength'=>255)); ?>
    <?php echo $form->error($model,'linkurl'); ?>
                </td>
  </tr>
  </tbody>
  </table>
<div style="" id="imagesdiv" class="pad-10">
  <fieldset>
  <legend>幻灯片设置</legend>
  <table width="100%" class="table_form">
  <tbody>
    <tr>
        <thwidth="80">上传图片：</th>
        <tdclass="y-bg"style="width:250px;"><?php echo CHtml::activeFileField($model,'imgpath'); ?></td>
        <td>
  
  <?php echo '<img src="'.$model->imgpath.'"    width="20%"/>'; ?>
        <?php if(!$model->isNewRecord){?>
        <inputtype="hidden"name="imgpath2"id="hiddenField"    value="<?php echo $model->imgpath;?>"/>
        <?php }?>
                </td>
    </tr>
    </tbody>
</table>
</fieldset></div>
<div id="imagesdiv" class="pad-10">
  <fieldset>
  <legend>缩略图设置</legend>
  <table width="100%" class="table_form">
  <tbody>
    <tr>
        <thwidth="80">上传图片：</th>
        <tdclass="y-bg"style="width:250px;"><?php echo CHtml::activeFileField($model,'thumb'); ?></td>
        <td>
  <?php echo '<img src="'.$model->thumb.'" />'; ?>
        <?php if(!$model->isNewRecord){?>
        <inputtype="hidden"name="thumb2"id="hiddenField"    value="<?php echo $model->thumb;?>"/>
        <?php }?>
        </td>
    </tr>
    </tbody>
</table>
</fieldset></div>
<div style="margin-left:10px; line-height:30px;"class="bk15">
<?php echo CHtml::submitButton($model->isNewRecord ? '确定' : '修改',array('class'=>'button')); ?>
<?php $this->endWidget(); ?>

文章来源：http://wuhai.blog.51cto.com/blog/2023916/953300