form field is broken when using flysytem and liip_imagine

[bruno-ds]

hello, using vich_uploader in conjunction with liip_imagine and flysystem (s3), I'm having trouble to use uri_prefix :

• if I write a full URL (http://...), then the form works correctly, but liip_imagine is broken (il include the http:// in the cache path and it broke)
• if I write an url relative to the flysystem mounted fs, liip_imagine works correclty, but the form element VichImageType::class is broken (the preview is relative to the web root instead of pointing to s3)

so basically, we can have either the form field working or liip_magine, not both.

[Koc]

@bruno-ds have you idea how it could be solved? Maybe open PR. Interesting issue, I think that many people can got it.

[bruno-ds]

I propose this kind of change :

• Add an uri_prefix_alt (the name is purposely ugly because I can't find out a great one)
• add a third optional parameter to the helpers (ie for twig helper vich_uploader_asset). This parameter activing the use of the alt prefix.

Going this way is not the smartest, but I think that it's the laziest since it creates the less risk.

Alternative implementation would need also two parameter but instead of swapping, it would concatenate them accordingly to new parameters.

[Koc]

Does your liipimagine data loaders configuration are in sync with vichuploader storage configuration? Have you tryed http://symfony.com/doc/master/bundles/LiipImagineBundle/data-loader/flysystem.html or http://symfony.com/doc/master/bundles/LiipImagineBundle/data-loader/stream.html ? Or https://symfony.com/doc/current/bundles/LiipImagineBundle/cache-resolver/aws_s3.html

[bruno-ds]

Hello, I use the first one : http://symfony.com/doc/master/bundles/LiipImagineBundle/data-loader/flysystem.html but unless it still have to be given the path to the file, in order to work, unless I misunderstood something (it is strongly possible ^^), this path must be "absolute", without the protocol and the host.