Having trouble getting multiple carrierwave processes to run - carrierwave

Question

I am attempting to optimize images when resizing them with Carrierwave but haven't had any luck getting this to work. Carrierwave is generating the different sized versions, but my custom optimize and the convert processes aren't running. I've tried calling the different processes in different places, but nothing seems to work.
Any ideas on what I might be doing wrong? Could it be the same issue here: CarrierWave RMagick - How do I cause manipulate! to be called?
class FooUploader < CarrierWave::Uploader::Base
include CarrierWave::MiniMagick
# Attempt #1
process :convert => 'jpg'
process :optimize
version :meow do
process :resize_to_fill => [700, 400]
end
# Attempt #2
version :meow do
process :convert => 'jpg', :optimize => nil, :resize_to_fill => [700, 400]
end
# Attempt #3
version :meow do
process :resize_to_limit => [700, 400]
process :optimize
process :convert => 'jpg'
end
# Attempt #4
# Tried switching order around since they are being resized but not converted
version :meow do
process :convert => 'jpg'
process :optimize
process :resize_to_limit => [700, 400]
end
# Optimize method used by all versions
def optimize
manipulate! do |img|
img.strip
img.combine_options do |c|
c.quality "96"
c.depth "24"
c.interlace "plane"
#c.interlace "Plane" # Tried both cases, seen examples of both
end
img
end
end
end

Answer 1

Well that not entirely possible they way you want if you are using carrierwave mini-magick or rmagick helper method
Solution 1)
if you get rid of carrierwave helper then perhaps it can work
do something like this
process :custom_processing
def custom_processing
// You have to write you own code for and not CarrierWave helper method to achieve this
// write your own code to convert to jpg
// write your code to optimize
// write your code to resize from the converted n optimize image
end
this way you do all your processing in one shot ,having said but you have to dig in mini_magick/rmagick documentation to know how what method to call for each as you cant rely on carrierwave helper (since they are registered/called via process method and one cannot call call/invoke process inside process )
so something like this you can't achieve
def custom_processing
process :convert => 'jpg'
process :optimize
process :resize_to_fit => [700, 400]
end
Solution 2)
With Carrierwave Helper but through multiple versions you can eventually achieve this
version :jpg do
process :convert => 'jpg'
end
version :optimize_jpg ,:from => :jpg do
process :optimize
end
version :meow,:from => :optimize_jpg do
process :resize_to_limit => [700, 400]
end
More reference of this can be found here
Now this approach take care of headache of Approach 1 digging to documentation(since we are using Carrierwave helper methods), but as you can see you have to create multiple versions to achieve this
Question : Why Multiple version ?
Well that how it Carrierwave work it create a uploader for each version and if from options isnt applied it consider the original images (uploaded images) as the source file(parent file) create the desired version