Hello
I’m using paperclip gem to upload photo with some other information. Lets call model “Post”. When validation fails, for example, because title can’t be empty, I want to keep uploaded file, so user don’t need to upload it again.
What is the best way to do this? I think it’s possible to store image data into hidden fields. Or, perhaps there are more elegant solution than this?
Thanks.
I believe the best approach is to simply not redirect when the validation fails. You can use ajax for remote validations. A more passive solution would be to use something like SimpleForm which will provide some default validations for common things such as missing required fields. A guess another workaround might be to somehow store the file temporarily on the server and keep a reference to it in your session data, but honestly it sounds like a lot of setup to me for very little gain. JavaScript would be the much lower hanging fruit.
I remember reading somewhere that the main reason file uploads are removed when you do a redirect :back for instance is a security precaution.
Thanks, Nozpheratu.
It makes sense, perhaps client-side validation can fix it.
thank you.