如何在laravel中以单一形式上传两个不同文件上传字段中的多个图像？

Question

我怎样才能从我的表单中的两个单独的文件上传选项传递多个图像文件，然后存储到数据库中？这是我的模式和控制器代码。

Schema::create('images', function (Blueprint $table) { 
     $table->increments('image_id'); 
     $table->increments('book_id')->unsigned(); 
     $table->string('coverPageImage'); 
     $table->string('previewPageImage'); 
     $table->timestamps(); 

    }); 

表单域：的BookID，文件上传coverPageImage，文件上传的 previewPageImage。 coverPageImage和previewPageImage都传递多个图像。

我能够将图像上传到文件夹并保存到数据库以进行单个文件上传。

$product_images = $request->file('coverPageImage'); 
foreach($product_images as $product_image){ 
    $coverImage_name = $product_image->getClientOriginalName(); 
    $upload = $product_image->move('images', $coverImage_name); 
    Image::create([ 
    'book_id' => $book_id, 
    'cover_images' => $coverImage_name 
     ]); 
} 

$preview_pages = $request->file('previewPageImage') 
foreach($preview_pages as $preview_image){ 
    $previewImage_name = $preview_image->getClientOriginalName(); 
    $upload = $preview_image->move('images', $previewImage_name); 
     Image::create([ 
     'book_id' => $book_id, 
     'preview_images' => $previewImage_name 
     ]); 
    } 

我想用以下方式：

Image::create([ 
    'book_id' => $book_id, 
    'cover_images' => $coverImage_name, 
    'preview_images' => $previewImage_name 
]); 

但我同时使用foreach循环的两个不同的文件上传卡住。任何建议或提示。

Answer 1

如果您确定$coverImage_name和$previewImage_name之间始终存在1：1的关系，那么您可以将它们推入数组，循环阵列并从内部创建图像。

$images = []; 
$product_images = $request->file('coverPageImage'); 
foreach ($product_images as $idx => $product_image){ 
    $coverImage_name = $product_image->getClientOriginalName(); 
    $upload = $product_image->move('images', $coverImage_name); 
    $images[$idx]['cover_image'] = $coverImage_name; 
} 

$preview_pages = $request->file('previewPageImage') 
foreach($preview_pages as $idx => $preview_image){ 
    $previewImage_name = $preview_image->getClientOriginalName(); 
    $upload = $preview_image->move('images', $previewImage_name); 
    $images[$idx]['preview_image'] = $previewImage_name; 
} 

foreach($images as $idx => $arr) { 
    Image::create([ 
     'book_id' => $book_id, 
     'cover_images' => isset($arr['cover_image']) ? $arr['cover_image'] : null, 
     'preview_image' => isset($arr['preview_image']) ? $arr['preview_image'] : null 
    ]); 
}