从编辑表单 Laravel 更新图像
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Update image from edit form Laravel
提问by universal
I want to edit the the blog form in Laravel. All other text information like Title, Bodyare successfully edited. But Imagecould not be updated. New image is not uploaded and image path is set as C:\xampp\tmp\php2030.tmp.
我想在 Laravel 中编辑博客表单。所有其他文本信息如Title, Body已成功编辑。但是Image无法更新。新图片未上传，图片路径设置为C:\xampp\tmp\php2030.tmp.
My Controller for edit.
我的控制器进行编辑。
public function update(Request $request, $id)
{
$requestData = $request->all();
$post = Post::findOrFail($id);
$post->update($requestData);
if ($request->hasFile('image'))
{
$file = $request->file('image');
$fileNameExt = $request->file('image')->getClientOriginalName();
$fileNameForm = str_replace(' ', '_', $fileNameExt);
$fileName = pathinfo($fileNameForm, PATHINFO_FILENAME);
$fileExt = $request->file('image')->getClientOriginalExtension();
$fileNameToStore = $fileName.'_'.time().'.'.$fileExt;
$pathToStore = public_path('media');
Image::make($file)->resize(600, 531)->save($pathToStore . DIRECTORY_SEPARATOR. $fileNameToStore);
$image = '/images/'.$fileNameToStore;
$post->save();
}
session()->flash('message', 'Successfully updated the post');
return redirect('/');
}
What is wrong with it?
它有什么问题？
回答by Tudor
When PHP receives a file upload, by default it writes it to a temporary directory like you're getting, and automatically deletes the file after the request has been handled.
当 PHP 收到文件上传时，默认情况下它会像您一样将其写入临时目录，并在处理请求后自动删除该文件。
What you need to do is move the uploaded file to a safe location. Laravel 5.5 has a store methodfor file uploads that might be of interest.
您需要做的是将上传的文件移动到安全位置。Laravel 5.5 有一个用于上传文件的store 方法，您可能会感兴趣。
public function update(Request $request, $id)
{
$requestData = $request->all();
$post = Post::findOrFail($id);
if ($request->hasFile('image')) {
$file = $request->file('image');
$fileNameExt = $request->file('image')->getClientOriginalName();
$fileNameForm = str_replace(' ', '_', $fileNameExt);
$fileName = pathinfo($fileNameForm, PATHINFO_FILENAME);
$fileExt = $request->file('image')->getClientOriginalExtension();
$fileNameToStore = $fileName.'_'.time().'.'.$fileExt;
$pathToStore = public_path('media');
Image::make($file)->resize(600, 531)->save($pathToStore . DIRECTORY_SEPARATOR. $fileNameToStore);
// UPDATE TEMPORARY IMAGE PATH WITH ACTUAL PATH
$requestData['image'] = "/media/{$fileNameToStore}";
}
$post->update($requestData);
session()->flash('message', 'Successfully updated the post');
return redirect('/');
}
回答by Javid Aliyev
Please, use the code below:
请使用以下代码：
public function update(Request $request, $id)
{
$requestData = $request->all();
$post = Post::findOrFail($id);
$pathToStore = public_path('media');
if ($request->hasFile('image'))
{
$file = $request->file('image');
$rules = array('file' => 'required|mimes:png,gif,jpeg'); // 'required|mimes:png,gif,jpeg,txt,pdf,doc'
$validator = \Illuminate\Support\Facades\Validator::make(array('file'=> $file), $rules);
if($validator->passes())
{
$filename = $file->getClientOriginalName();
$extension = $file -> getClientOriginalExtension();
$picture = sha1($filename . time()) . '.' . $extension;
$upload_success = $file->move($pathToStore, $picture);
if($upload_success)
{
//if success, create thumb
$image = Image::make(sprintf($pathToStore.'/%s', $picture))->resize(600, 531)->save($pathToStore.'/thumb/'.$picture);
}
}
$requestData['image'] = "$pathToStore/{$picture}";
}
$post->update($requestData);
session()->flash('message', 'Successfully updated the post');
return redirect('/');
}
