background processing

[Jonathan Sleeuw]

i have an original image being uploaded to S3 via a carrierwave uploader that is part of a rails web app. what i would then like to do is kick off some additional processing on the same image using a carrierwave uploader that is run as an iron.io ironworker.

how would i go about initializing the ironworker uploader to get a handle on the previously uploaded image? would "retrieve_from_store!" do the trick? if so what kind of identifier would i need to pass? url?

[Daniel Doubrovkine]

If you're using ImageMagick, the following will retrieve the image from S3 and give you a handle on it:

manipulate! do |image|

end

If you don't want to open the image, or aren't using ImageMagick, you can do this

cache_stored_file! if !cached?

# file now in current_path, so you can do

File.open(current_path, "rb") do ...

On Wed, May 2, 2012 at 1:45 AM, Jonathan Sleeuw <jsl...@gmail.com> wrote:

i have an original image being uploaded to S3 via a carrierwave uploader that is part of a rails web app. what i would then like to do is kick off some additional processing on the same image using a carrierwave uploader that is run as an iron.io ironworker.

how would i go about initializing the ironworker uploader to get a handle on the previously uploaded image? would "retrieve_from_store!" do the trick? if so what kind of identifier would i need to pass? url?

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[Jonathan Sleeuw]

Thanks Daniel, just looked through the docs for both of those methods and it looks as though either should work for me. As long as I pass the url in as a parameter / implement necessary methods (current_path, for example) to get at the remote file, i should be good to go!

On Wednesday, May 2, 2012 11:23:12 PM UTC+9, Daniel Doubrovkine wrote:

If you're using ImageMagick, the following will retrieve the image from S3 and give you a handle on it:

manipulate! do |image|

end

If you don't want to open the image, or aren't using ImageMagick, you can do this

cache_stored_file! if !cached?

# file now in current_path, so you can do

File.open(current_path, "rb") do ...

On Wed, May 2, 2012 at 1:45 AM, Jonathan Sleeuw <jsl...@gmail.com> wrote:

i have an original image being uploaded to S3 via a carrierwave uploader that is part of a rails web app. what i would then like to do is kick off some additional processing on the same image using a carrierwave uploader that is run as an iron.io ironworker.

how would i go about initializing the ironworker uploader to get a handle on the previously uploaded image? would "retrieve_from_store!" do the trick? if so what kind of identifier would i need to pass? url?

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For more options, visit this group at http://groups.google.com/group/carrierwave?hl=en.