laravel 我想在更新新图像的同时删除存储的图像
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I want to delete the stored image while update new image
提问by Krunal
I want to delete the stored image while update new image
我想在更新新图像的同时删除存储的图像
public function update($id)
{
$users = AdminLogin::find($id);
if(Input::hasFile('image_file'))
{
$file = Input::file('image_file');
$name = time() . '-' . $file->getClientOriginalName();
$file = $file->move(('uploads/images'), $name);
$users->image_file= $name;
}
$users->save();
return response()->json($users);
}
回答by Jahid Mahmud
You can write this. This will solve your problem
你可以写这个。这将解决您的问题
public function update($id)
{
$users = AdminLogin::find($id);
if(Input::hasFile('image_file'))
{
$usersImage = public_path("uploads/images/{$users->image_file}"); // get previous image from folder
if (File::exists($usersImage)) { // unlink or remove previous image from folder
unlink($usersImage);
}
$file = Input::file('image_file');
$name = time() . '-' . $file->getClientOriginalName();
$file = $file->move(('uploads/images'), $name);
$users->image_file= $name;
}
$users->save();
return response()->json($users);
}
This will delete the previous image and update the new image
这将删除以前的图像并更新新图像
回答by Mohsin Khan
Well, the answer is technically incorrect. What if the save operation fails, since you have deleted that image the current record will not have an image anymore. So to overcome this problem you can adjust your code like:
好吧，答案在技术上是不正确的。如果保存操作失败怎么办，因为您已删除该图像，当前记录将不再有图像。所以为了克服这个问题，你可以调整你的代码，如：
if(Input::hasFile('image_file'))
{
$file = Input::file('image_file');
$name = time() . '-' . $file->getClientOriginalName();
$file = $file->move(('uploads/images'), $name);
$users->image_file= $name;
}
$users->save();
if(Input::hasFile('image_file'))
{
$usersImage = public_path("uploads/images/{$users->image_file}"); // get previous image from folder
if (File::exists($usersImage)) { // unlink or remove previous image from folder
unlink($usersImage);
}
}
