Processor [:vips] not reading base64

[jessebarnes]

Have a Posts.rb with has_attached_file:

 has_attached_file :gif, 
    styles: {
        original: {},
        large: '512x512>', format: 'gif',
        square: '256x256>',  format: 'gif',
        thumbnail: '70x70>', animated: false, format: 'gif' 
      },
      :convert_options => {
        :cmyk_original => lambda { |file| [{
            cmd: "copy",
            args: ["n: -1"]
        }].to_json }
    },
    processors: [:vips]

    validates_attachment :gif, content_type: { content_type: 'image/gif' }, if: Proc.new { |a| a.gif? }
    validates_with AttachmentSizeValidator, attributes: :gif,
    less_than: 9.megabytes,
    message: 'Gif exceeds 9mb upload size limit'

Postman API Body:

"content": "Hi Mom",
"gif": "data:image/gif;base64,R0lGODlhAALXAPcAAAECBAsEAwAGC.."

With Processor [:vips] we received :

{
    "error": true,
    "message": "Gif Paperclip::Errors::NotIdentifiedByImageMagickError, Gif has contents that are not what they are reported to be"
}

When the processor is taken out, we do not have any issues. Not sure what is happening... any suggestions? Is my model correct? Thanks ~

[jcupitt]

Hi @jessebarnes, this looks like a ImageProcessing (I think?) error. I'd open an issue there.

[jessebarnes]

trying to pass in Post model w/convert_options on has_attached_file :gif in ruby on rails

when I pass in "copy" in cmd and "n:-1" as args, I get this error:
"unable to call copy: you supplied 2 arguments, but operation needs 1"

current code:

   convert_options: {
                          :large => lambda { |file| [{
                            cmd: "copy",
                            args: "[n: -1]"
                          }].to_json }
                   },

error: unable to call copy: you supplied 2 arguments, but operation needs 1

Thanks so much @jcupitt, am I passing this in incorrectly?

[jcupitt]

Sorry, no idea, you are not using ruby-vips, you are using the ImageProcessing gem (I think). You'd need to ask there.

[jessebarnes]

No, I am using Ruby-Vips. I am using your gem with Image Magick and kt-paper-clip. The above usage is from your documentation.

How would you incorporate your gem with this argument in a model like the example usage shows in your readme?

Please, help~

Gemfile:
ruby-vips (2.0.17)
ffi (~> 1.9)
...
paperclip-vips!
remote: https://github.com/tsu-social/paperclip-vips.git
...
here is the github link -> https://github.com/realhub/paperclip-vips

Is this the wrong usage? thank you so much

[jcupitt]

Yes, but you are not using ruby-vips directly, you're using it via some other API I don't know, perhaps the ImageProcessing gem, or maybe paperclip.

You need to ask the people who made the gem you are using.

[jcupitt]

Looks like you need to ask paperclip-vips, that's the gem you are using.

Though I don't know if it's the best solution -- in rails6, ActiveRecord uses ImageProcessing for image handling, and that has a vips backend. I think I would go that route instead.

Have a look at eg.:

https://bloggie.io/@kinopyo/upgrade-guide-active-storage-in-rails-6