我需要使用Laravel保存多张图片。图片分别存储在磁盘上,指向这些位置的链接存储在数据库中的JSON文件中。因此,每个用户在数据库中都有一个列,其中包含:
{"images": ["/user/57/house-11-1.png", "/use/57/house-12-2.png"]}
因此,当用户上传文件并单击“保存”时,将发生以下代码:
$path = $this->processImage($request, $user->id, $house->id);
/* uploads the image to the server and pass path of the image*/
if ($path) {
$jsonstring = $house->images;
dd($jsonstring);
$arr = json_decode($jsonstring);
$arr['images'] = [$path];
$json = json_encode($arr);
dd($json);
$house->images = $json;
$house->save();
}
使用的laravel模型称为userHouse,并将图像另存为:
class userHouse extends Model implements Changeable
{
protected $casts = [
'images' => 'array',
];
...
}
processImage函数:
private function processImage($request, $userID, $houseId)
{
$path = null;
$number = rand(1, 99);
if ($request->hasFile('image')) {
$image = Image::make($request->file('image'))
->resize(750, null, function ($constraint) {
$constraint->aspectRatio();
})
->encode('png');
$path = "/vendors/{$userID}/horse-{$houseId}-{$number}.png";
Storage::disk('fileadmin')->put($path, $image->encoded);
}
return $path;
}
我得到的错误是:
[2019-05-27 08:01:15] local.ERROR: Serialization of 'Illuminate\Http\UploadedFile' is not allowed {"userId":57,"email":"info@test.com","exception":"[object] (Exception(code: 0): Serialization of 'Illuminate\\Http\\UploadedFile' is not allowed at /Users/dsfsdf/ah-website/user/laravel/framework/src/Illuminate/Session/Store.php:128)
[stacktrace]
如何将URL添加到数据库中的JSON字符串?上传单个图像即可。
答案 0 :(得分:0)
我能想到的是processImage
方法无法处理请求中的多个上载文件。
此外,IMO,此方法实际上应接收UploadedFile对象,而不是整个请求。
因此,代码类似于:
$images = $house->images;
foreach ($request->images as $uploadedFile) {
$images[] = $this->processImage($uploadedFile, $user->id, $house->id);
}
$house->images = $images;
$house->save();
此外,如果您在模型中将images属性定义为数组,则无需进行解码/编码,因为laravel已经这样做了。