Hello all,
I am using Rails 2.0.2 and Ruby 1.8.7 and I need to make use of rack middleware for integrating an ajax file upload plugin(https:// github.com/valums/file-uploader) with paperclip in Rails( As given in this tutorial:- Paperclip, valums’s file-uploader and middleware continued | Randomly learning Rails).
I have referred to the rack-middleware Railscast by Ryan Bates(http:// railscasts.com/episodes/151-rack-middleware). I accordingly tried out a `rake middleware` command in my config env. to check out the middleware available wrt my rails app.
I go the following message/details:-
mohnish@mohnish-desktop:~/pocs_tried_for_use/postimage_poc3$ rake middleware --trace (in /home/mohnish/UP/pocs_tried_for_use/postimage_poc3) rake aborted! Don't know how to build task 'middleware' /home/mohnish/.rvm/gems/ruby-1.8.7-p334/gems/rake-0.8.7/lib/ rake.rb:1728:in `' /home/mohnish/.rvm/gems/ruby-1.8.7-p334/gems/rake-0.8.7/lib/ rake.rb:2050:in `invoke_task' /home/mohnish/.rvm/gems/ruby-1.8.7-p334/gems/rake-0.8.7/lib/ rake.rb:2029:in `top_level' /home/mohnish/.rvm/gems/ruby-1.8.7-p334/gems/rake-0.8.7/lib/ rake.rb:2029:in `each' /home/mohnish/.rvm/gems/ruby-1.8.7-p334/gems/rake-0.8.7/lib/ rake.rb:2029:in `top_level' /home/mohnish/.rvm/gems/ruby-1.8.7-p334/gems/rake-0.8.7/lib/ rake.rb:2068:in `standard_exception_handling' /home/mohnish/.rvm/gems/ruby-1.8.7-p334/gems/rake-0.8.7/lib/ rake.rb:2023:in `top_level' /home/mohnish/.rvm/gems/ruby-1.8.7-p334/gems/rake-0.8.7/lib/ rake.rb:2001:in `run' /home/mohnish/.rvm/gems/ruby-1.8.7-p334/gems/rake-0.8.7/lib/ rake.rb:2068:in `standard_exception_handling' /home/mohnish/.rvm/gems/ruby-1.8.7-p334/gems/rake-0.8.7/lib/ rake.rb:1998:in `run' /home/mohnish/.rvm/gems/ruby-1.8.7-p334/gems/rake-0.8.7/bin/rake: 31 /home/mohnish/.rvm/gems/ruby-1.8.7-p334/bin/rake:19:in `load' /home/mohnish/.rvm/gems/ruby-1.8.7-p334/bin/rake:19 mohnish@mohnish-desktop:~/UP/pocs_tried_for_use/postimage_poc3$
From this, in a way it looks like the Rails version I am using didn't have support for rack middleware. I am not really sure where can I exactly verify the same.
Also, if the same is true is there an alternative to it that I can use ?. I have seen params of env(environment related) being passed as part of metal.rb.. Can I use Rails Metal in my case.
It would be great if some one can guide me how exactly to use Rails Metal if applicable to my case as an alternative wrt the blog tutorial or even in general for that matter.
Thank you very much..