Yii2：结合Kartik的FileInput& Kartik的DetailView [英] Yii2: Combining Kartik's FileInput & Kartik's DetailView

问题描述

当通过标准的创建表单进行操作时，情况会变得很好，如下所示返回非null ：

  $ filedata = UploadedFile :: getInstance（$ model，'filedata'）; 
  

然而，在编辑模式下进入Kartik的DetailView时总会返回 null 试图更新文件。

在 view.php 我有：

  [
'attribute'=> 'filedata'，
'visible'=> Yii :: $ app-> user-> can（'doIt'），
'type'=> DetailView :: INPUT_FILEINPUT，
'rowOptions'=> ['class'=> 'kv-view-hidden']，
'widgetOptions'=> ['options'=> ['accept'=> 'application / pdf']，
'pluginOptions'=> [
'showUpload'=>假，
'allowedFileExtensions'=> ['pdf']，
'initialCaption'=> $ model->文件名，
]，
'pluginEvents'=> [
'filecleared'=> < whatever>，
'fileloaded'=> 
]，
]，
  

< _form.php （可以工作）：

  <？php $ form = ActiveForm :: begin（['options'=> ['enctype'=>'multipart / form-data']]）; ？> 
 
 $ $ form->字段（$ model，'filedata'） - >小部件（FileInput :: classname（），[
'options'=> [ '接受'=>'application / pdf']，
'pluginOptions'=> [
'showUpload'=> false，
'allowedFileExtensions'=& ]，
'initialCaption'=> $ model-> getOldAttribute（'filename'），
]，
'pluginEvents'=> [
'filecleared'=> ;< whatever>，
'fileloaded'=>< whatever> ;, 
]，
]）
？> 
  

有什么想法？ （顺便说一句，不知道在 view.php 中是否需要'multipart / form-data'是 _form.php ，所以任何人确认这一点，并给予一些细节应该是受欢迎的）。

解决方案当然，在 _form.php 和 view.php

 'formOptions'=> ['options'=> ['enctype'=> 'multipart / form-data']]，
'attributes'=> [
 ... 
 [
'属性'=> 'filedata'，
'visible'=> Yii :: $ app-> user-> can（'doIt'），
'type'=> DetailView :: INPUT_FILEINPUT，
'rowOptions'=> ['class'=> 'kv-view-hidden']，
'widgetOptions'=> ['options'=> ['accept'=> 'application / pdf']，
'pluginOptions'=> [
'showUpload'=>假，
'allowedFileExtensions'=> ['pdf']，
'initialCaption'=> $ model->文件名，
]，
'pluginEvents'=> [
'filecleared'=> < whatever>，
'fileloaded'=> < what>，
]，
]，
]，
 .... 
] 
  

I'm trying single-file uploads using Kartik's FileInput.

Things go fine when doing this through standard create form as the following returns non-null:

$filedata = UploadedFile::getInstance($model, 'filedata'); 

However it always returns null when going into Kartik's DetailView in edit mode and trying to update the file.

In view.php I have:

[
    'attribute' => 'filedata',
    'visible' => Yii::$app->user->can('doIt'),
    'type' => DetailView::INPUT_FILEINPUT,
    'rowOptions' => ['class' => 'kv-view-hidden'],
    'widgetOptions' => ['options' => ['accept' => 'application/pdf'],
    'pluginOptions' => [
        'showUpload' => false,
        'allowedFileExtensions' => ['pdf'],
        'initialCaption' => $model->filename,
    ],
    'pluginEvents' => [
        'filecleared' => <whatever>,
        'fileloaded'  => <whatever>,
    ],
  ],
],   

while in _form.php (which does work):

<?php $form = ActiveForm::begin(['options' => ['enctype' => 'multipart/form-data']]); ?>

    <?= $form->field($model, 'filedata')->widget(FileInput::classname(), [
        'options' => ['accept' => 'application/pdf'],
        'pluginOptions' => [
            'showUpload' => false,
            'allowedFileExtensions' => ['pdf'],
            'initialCaption' => $model->getOldAttribute('filename'),
        ],
        'pluginEvents' => [
            'filecleared' => <whatever>,
            'fileloaded'  => <whatever>,
        ],
    ]) 
?>

Any ideas? (BTW, don't know whether 'multipart/form-data' is needed somehow in view.php as it is in _form.php, so anyone confirming this and giving some details should be welcome).

解决方案

Of course, multipart/form-data is needed both in _form.php and view.php as well, as follows:

'formOptions' => ['options' => ['enctype' => 'multipart/form-data']],
'attributes' => [
...
[
    'attribute' => 'filedata',
    'visible' => Yii::$app->user->can('doIt'),
    'type' => DetailView::INPUT_FILEINPUT,
    'rowOptions' => ['class' => 'kv-view-hidden'],
    'widgetOptions' => ['options' => ['accept' => 'application/pdf'],
    'pluginOptions' => [
        'showUpload' => false,
        'allowedFileExtensions' => ['pdf'],
        'initialCaption' => $model->filename,
    ],
    'pluginEvents' => [
        'filecleared' => <whatever>,
        'fileloaded'  => <whatever>,
    ],
  ],
],
....
]   

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