我在Yii 2中跟踪了文件/图像上传的不同实现。其中一个来自Kartik的小部件，位于：http://demos.krajee.com/widget-details/fileinput
在我的视图中， _form.php ：
<div class="col-sm-8">
<?php
// A block file picker button with custom icon and label
echo FileInput::widget([
'model' => $model,
'attribute' => 'image',
'options' => ['multiple' => true],
'pluginOptions' => [
'showCaption' => false,
'showRemove' => false,
'showUpload' => false,
'browseClass' => 'btn btn-primary btn-block',
'browseIcon' => '<i class="glyphicon glyphicon-camera"></i> ',
'browseLabel' => 'Upload Receipt'
],
'options' => ['accept' => 'image/*']
]);
?>
</div>
我只向您展示了我的观点。该图像上传块附带其他字段，如客户名称，日期从和到，产品名称等，以及提交按钮。
我也已经生成了模型和控制器。
控制器的一部分是：
public function actionCreate()
{
$model = new Invoice();
if ($model->load(Yii::$app->request->post()) && $model->save()) {
return $this->redirect(['view', 'id' => $model->inv_id]);
}
else {
return $this->render('create', [
'model' => $model,
]);
}
}
我还没有在actionCreate中添加任何内容，因为我仍然没有任何想法。在Kartik的文件上传演示中，没有涉及或显示的控制器。
如何保存我选择在数据库中上传的图片的网址/路径，并在本地保存该图片？
修改
关于@ arogachev的答案，这是我的模型中我的afterSave的样子，但图像路径仍未保存在我的数据库中：
public function afterSave($insert, $changedAttributes)
{
if(isset($this->image)){
$this->image = UploadedFile::getInstance($this,'image');
if(is_object($this->image)){
$name = Yii::$app->basePath . 'C:\wamp3\www\basicaccounting\web\uploads'; //set directory path to save image
$this->image->saveAs($name.$this->inv_id."_".$this->image);
$this->image = $this->inv_id."_".$this->image; //appending id to image name
Yii::$app->db->createCommand()
->update('invoice', ['image' => $this->image], 'inv_id = "'.$this->inv_id.'"')
->execute(); //manually update image name to db
}
}
}
答案 0 :(得分：1)
在模型中使用以下后遗症
public function afterSave($insert, $changedAttributes)
{
if(isset($this->logo)){
$this->logo=UploadedFile::getInstance($this,'logo');
if(is_object($this->logo)){
$path=Yii::$app->basePath . '/images/'; //set directory path to save image
$this->logo->saveAs($path.$this->id."_".$this->logo); //saving img in folder
$this->logo = $this->id."_".$this->logo; //appending id to image name
\Yii::$app->db->createCommand()
->update('organization', ['logo' => $this->logo], 'id = "'.$this->id.'"')
->execute(); //manually update image name to db
}
}
}
用您自己的属性替换上述徽标。即。图像
答案 1 :(得分：0)
尝试以下 -
在您的控制器
中if($model->image = UploadedFile::getInstance($model, 'image'))
{
if ($model->upload())
{
// file is uploaded successfully
}
}
在您的模型中
public function upload()
{
$path = \Yii::$app->params['basepath'];
if (!is_dir($path)) {
$image_path = BaseFileHelper::createDirectory($path,0777,true);
}
$this->image->saveAs($path . date('Y').'/'.date('m').'/'.date('d').'/'.$this->image->baseName . '.' . $this->image->extension);
$this->image = date('Y').'/'.date('m').'/'.date('d').'/'.$this->image->baseName . '.' . $this->image->extension; // Assign image path to store in Database column (image).
return true;
}
您的图片将作为＆＃34; $ path保存在服务器上。日期（＆＃39; Y＆＃39;）＆＃39; /＆＃39; .date（＆＃39; M＆＃39）。＆＃39; /＆＃39; .date（＆＃39; d＆＃39;）。＆＃39; /＆＃39;。$ this-＆gt; image-＆gt; baseName。 ＆＃39;＆＃39; 。 $这 - ＆GT;图像 - ＆GT;延伸＆＃34 ;. 在数据库中，它将保存为＆＃34;日期（＆＃39; Y＆＃39;）。＆＃39; /＆＃39;。日期（＆＃39; m＆＃39;）。＆＃39 ; /＆＃39;。日期（＆＃39; d＆＃39;）。＆＃39; /＆＃39;。$ this-＆gt; image-＆gt; baseName。 ＆＃39;＆＃39; 。 $这 - ＆GT;图像 - ＆GT;延伸＆＃34;
答案 2 :(得分：0)
表格
<?= $form->field($model, 'images[]')->widget(FileInput::classname(), [
'options' => ['accept' => 'image/*', 'multiple' => true],
'pluginOptions' => [
'previewFileType' => 'image',
'allowedFileExtensions' => ['jpg', 'gif', 'png', 'bmp','jpeg'],
'showUpload' => true,
'overwriteInitial' => true,
],
]);
?>
在模型中
public $images;
public function rules()
{
return [
[['name', 'price'], 'required'],
[['price'], 'integer'],
[['images'],'file', 'maxFiles' => 4],
[['name'], 'string', 'max' => 100],
];
}
在控制器
中public function actionCreate()
{
$model = new Product();
if ($model->load(Yii::$app->request->post())) {
$model->save();
$file = UploadedFile::getInstances($model, 'images');
foreach ($file as $file) {
$path =Yii::getAlias('@frontend').'/uploads/'.$file->name;
$file->saveAs($path);
}
return $this->redirect(['view', 'id' => $model->id]);
}
return $this->render('create', [
'model' => $model,
]);
}
答案 3 :(得分：0)
尝试一下
MediaHelper::saveMultipleFiles($_FILES['EmpDocumentForm'],'emp_document/');
public static function saveMultipleFiles($img_obj,$path){
$upload_path = Yii::getAlias('@backend')."/web/uploads/$path/";
if(!file_exists($upload_path)) {
FileHelper::createDirectory($upload_path, $mode = 0777, $recursive = true);
}
$arr_size = sizeof($img_obj['name']['input_img']);
if(!empty($img_obj['name']['input_img'][0])){
for($i=0; $i<$arr_size; $i++){
$ex = pathinfo($img_obj['name']['input_img'][$i]);
$extension = $ex['extension'];
$new_name = str_replace(' ', '_', $ex['filename']). '_' . time() . '.' . $extension;
$new_path = Yii::getAlias('@backend') . "/web/uploads/" . $path;
$file_name = $img_obj['name']['input_img'][$i];
$tmp_name = $img_obj['tmp_name']['input_img'][$i];
if(move_uploaded_file($tmp_name,$new_path.$new_name)) {
$media_id = self::saveFile($new_name,$new_path,$path,$file_name);
if($media_id){
return $media_id;
} else {
return false;
}
}else{
return false;
}
}
} else {
return false;
}
}
public static function saveFile($new_name,$new_path,$path,$file_name){
$media = new Media();
$media->file_name = $new_name;
$media->file_path = $new_path . $media->file_name;
$media->original_name = $file_name;
$media->file_url = Yii::$app->urlManager->createAbsoluteUrl("/web/uploads/".$path.$media->file_name);
if($media->save()){
return $media->id;
} else {
return false;
}
}