过去我曾经用AJAX JQUERY
上传文件,但现在我正尝试使用symfony FileType
进行同样的上传。
问题在于,在正常的工作流程中,我们需要添加contentType: false, processData: false,
,但这似乎会导致以下symfony错误:Cannot check if an unsubmitted form is valid. Call Form::isSubmitted() before Form::isValid().
所以isSubmitted()
总是错误的,我猜是因为processData: false
我完全不知道如何解决此问题,因为如果不执行contentType: false
,则AJAX请求会崩溃。 symfony文档对此不满意。
JAVASCRIPT:
const form_data = $('#newBrandForm').serializeArray();
const json = serializeAsObject(form_data)
const files = document.getElementById('new_brand_group_logo_logoFile').files;
if (files.length > 0) {
let formData = new FormData();
for (let x = 0; x < files.length; x++) {
formData.append("attachements", files[x]);
}
json['new_brand[group_logo][logoFile]'] = formData
}
$.ajax({
url: `/new-brand-form-handle`,
type: 'POST',
cache: false,
contentType: false,
processData: false,
data: json
})
控制器
function brandFormHandle(Request $request) {
$em = $this->getDoctrine()->getManager();
$brandEntity = new Brand();
// create form
$form = $this->createForm(NewBrandType::class, $brandEntity);
// handle
$form->handleRequest($request); // CRASH HERE
if ($form->isSubmitted() && $form->isValid()) {
$brand = $form->getData();
// move file
$someNewFilename = 'newBrand'.'-logo';
$file = $form['attachment']->getData();
$file->move($this->directory, $someNewFilename);
try {
$em->persist($brand);
$em->flush();
$status = 'Brand added';
} catch (Exception $ex) {
return $this->json([2, 'insertion error'.$ex]);
}
return $this->json([1, $status]);
}
//....
}
$request
DUMP所以我可以看到其中的文件,但看起来表单只是一个对象,所以我不确定是否可能是问题所在?
Request {#51 ▼
+attributes: ParameterBag {#71 ▶}
+request: ParameterBag {#87 ▼
#parameters: array:1 [▼
"form" => "[object Object]"
]
}
+query: ParameterBag {#70 ▶}
+server: ServerBag {#35 ▶}
+files: FileBag {#73 ▶}
+cookies: ParameterBag {#72 ▶}
+headers: HeaderBag {#82 ▶}
#content: null
#languages: null
#charsets: null
#encodings: null
#acceptableContentTypes: null
#pathInfo: "/new-brand-form-handle"
#requestUri: "/new-brand-form-handle"
#baseUrl: ""
#basePath: null
#method: "POST"
#format: null
#session: Closure {#111 ▶}
#locale: null
#defaultLocale: "en"
-isHostValid: true
-isForwardedValid: true
basePath: ""
format: "html"
}
//这是console.log(json)的转储,请注意没有文件;我不确定这是否正常
Object
new_brand[group_description][description]: "description"
new_brand[group_identification][city]: ""
new_brand[group_identification][country]: "AU"
new_brand[group_identification][name]: "name"
new_brand[group_identification][postcode]: ""
new_brand[group_identification][streetAdd]: ""
new_brand[group_identification][street]: "street"
new_brand[group_identification][website]: "website"
new_brand[group_logo][logoURL]: "web"
答案 0 :(得分:1)
我不知道您为什么混合使用不同的方法(将serializeArray与FormData一起使用),而不仅仅是坚持使用FormData。
似乎您将错误格式的json对象作为ajax请求中的数据传递,因为字段json ['new_brand [group_logo] [logoFile]']包含formData,因此它不是有效的json对象。
实际上,如果您正在使用树枝渲染表单(我想您是这样做的),那么您要做的就是:
var form = $('#newBrandForm')[0]; // You need to use standard javascript object here
var formData = new FormData(form);
$.ajax({
url: `/new-brand-form-handle`,
type: 'POST',
cache: false,
contentType: false,
processData: false,
data: formData
});
现在您应该在控制器中正确提交表单。