我有一個 Yii2 ActiveForm，它有兩個接受文件輸入的表單域。<?= $form->field($model, 'mainImage')->fileInput() ?><?= $form->field($model, 'productImage[]')->fileInput() ?>在控制器中，我有： public function actionCreate(){ $model = new Product(); $model->supplier_id = Yii::$app->user->identity->id; $imageArray = ['mainImage','productImage']; $mainImageIndex = 1; if ($model->load(Yii::$app->request->post())) { $model->mainImage = UploadedFile::getInstance($model, 'mainImage'); $model->images = $model->singleImageUpload(); //UploadedFile::reset(); // var_dump($model->mainImage); // exit(); $model->productImage = UploadedFile::getInstances($model, 'productImage'); $images = $model->multipleImageUpload(); $imageCount = count($images); if ($model->validate() && $model->save(false)) { for ($i=0; $i < $imageCount; $i++) { $imageModel = new ProductImage(); $imageModel->product_id = $model->id; $imageModel->image = $images[$i]; $imageModel->save(); } return $this->redirect(['view', 'id' => $model->id]); } } return $this->render('create', [ 'model' => $model, ]);}在 Model 類中，我有這些驗證規則：[['mainImage','productImage'], 'safe'],[['mainImage','productImage'], 'file','skipOnEmpty' => true, 'extensions' => 'jpeg, jpg, png','checkExtensionByMimeType'=>false, 'maxFiles'=>10],每次我提交表單時，我都會收到一個mainImage字段錯誤，說明Please upload a file. 沒有錯誤productImage 可能有什么解決方法？編輯圖像mainImage并productImage成功上傳，但驗證錯誤仍然存在mainImage
2 回答
慕蓋茨4494581
TA貢獻1850條經驗 獲得超11個贊
問題是模型類中的驗證。我已經將它們標記為safe
[['mainImage','productImage'], 'safe'],
我注釋掉了這個驗證并且它起作用了
慕田峪7331174
TA貢獻1828條經驗 獲得超13個贊
如果要上傳多個文件，則需要更改視圖
<?= $form->field($model, 'mainImage')->fileInput() ?>
<?= $form->field($model, 'productImage[]')->fileInput(['multiple' => true, 'accept' => 'image/*']) ?>
并且您的ruleinmodel說您一直在嘗試上傳多個圖像的屬性productImage[]和mainImage. 但是視圖表示該屬性mainImage用于單個文件，因此更改規則。
[['mainImage'], 'file', 'skipOnEmpty' => true, 'extensions' => 'jpeg, jpg, png'],
[['productImage'], 'file','skipOnEmpty' => true, 'extensions' => 'jpeg, jpg, png','checkExtensionByMimeType'=>false, 'maxFiles'=>10],
在控制器中，
$model->productImage = UploadedFile::getInstances($model, 'productImage');
$model->mainImage = UploadedFile::getInstance($model, 'mainImage');
if ($model->multipleImageUpload()) {
// file is uploaded successfully
return;
}
在你的模型中，
public function multipleImageUpload()
{
if ($this->validate()) {
foreach ($this->imageFiles as $file) {
$file->saveAs('uploads/' . $file->baseName . '.' . $file->extension);
}
return true;
} else {
return false;
}
}
如需更多參考，請訪問此鏈接：https : //www.yiiframework.com/doc/guide/2.0/en/input-file-upload
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