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How to: Customize your version file names
chrisbloom7 edited this page Jun 9, 2011
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In the current version of CarrierWave if you have an uploader defined like this:
class LogoUploader < CarrierWave::Uploader::Base
# ...
def filename
"original.#{model.logo.file.extension}" if original_filename
end
version :small do
process :resize_to_fit => [190, 190]
process :convert => 'png'
end
version :icon do
process :resize_to_fill => [50, 50]
process :convert => 'png'
end
# ...
end
and attach a file name somefile.jpg
, you will end up with files named original.jpg
, original_small.png
and original_icon.png
respectively.
If you want to set a specific file name for each version, you cannot simply nest another filename
method inside the version. Instead, you will need to override the full_filename
method that is originally defined in the CarrierWave::Uploader::Versions
module. An example would look like this:
ruby
def filename
"original.#{model.logo.file.extension}" if original_filename
end
version :small do
process :resize_to_limit => [190,190]
process :convert => 'png'
def full_filename (for_file = model.logo.file)
"small.png"
end
end
version :icon do
process :resize_to_fill => [50,50]
process :convert => 'png'
def full_filename (for_file = model.logo.file)
"icon.png"
end
end
Given the original example, the result of this code will be a file named original.jpg
, plus the version files small.png
and icon.png