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PORails3 phonegap jsonp method override PUT,POST
 

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    <p>I am trying to create a phone gap app using the rails 3 rest api. Because of the cross domain i have to use JSONP which only allows GET. But is rails you can put _method=POST in the form action to override the method</p> <p>I also need to override the rack middleware MehtodOVerride with my own custom middleware to allow it.</p> <p>So I created a lib/restful_jsonp_middleware.rb with following code </p> <pre><code>module Rack class RestfulJsonpMiddleware HTTP_METHODS = %w(GET HEAD PUT POST DELETE OPTIONS) METHOD_OVERRIDE_PARAM_KEY = "_method".freeze HTTP_METHOD_OVERRIDE_HEADER = "HTTP_X_HTTP_METHOD_OVERRIDE".freeze attr_accessor :method_parameter_name def initialize(app) @app = app @method_parameter_name = METHOD_OVERRIDE_PARAM_KEY end # We check if the method parameter is in the request # and set up the request to allow the execution of the # overwritten HTTP method def call(env) req = Request.new(env) method = req.params[@method_parameter_name] method = method.to_s.upcase if HTTP_METHODS.include?(method) env["rack.methodoverride.original_method"] = env["REQUEST_METHOD"] env["REQUEST_METHOD"] = method env[HTTP_METHOD_OVERRIDE_HEADER] = method end @app.call(env) end end end </code></pre> <p>Also I added these lines to my application.rb file</p> <pre><code>require 'lib/restful_jsonp_middleware.rb' config.middleware.swap Rack::MethodOverride,Rack::RestfulJsonpMiddleware </code></pre> <p>Now if i do rack middleware i am getting this error</p> <pre><code>rake aborted! </code></pre> <p>cannot load such file -- lib/restful_jsonp_middleware.rb /home/sunny/workspace/ruby_projects/jquery_bootstrap/config/application.rb:4:in <code>require' /home/sunny/workspace/ruby_projects/jquery_bootstrap/config/application.rb:4:in</code>' /home/sunny/workspace/ruby_projects/jquery_bootstrap/Rakefile:5:in <code>require' /home/sunny/workspace/ruby_projects/jquery_bootstrap/Rakefile:5:in</code>' /home/sunny/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/lib/rake/rake_module.rb:25:in <code>load' /home/sunny/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/lib/rake/rake_module.rb:25:in</code>load_rakefile' /home/sunny/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/lib/rake/application.rb:501:in <code>raw_load_rakefile' /home/sunny/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/lib/rake/application.rb:82:in</code>block in load_rakefile' /home/sunny/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/lib/rake/application.rb:133:in <code>standard_exception_handling' /home/sunny/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/lib/rake/application.rb:81:in</code>load_rakefile' /home/sunny/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/lib/rake/application.rb:65:in <code>block in run' /home/sunny/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/lib/rake/application.rb:133:in</code>standard_exception_handling' /home/sunny/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/lib/rake/application.rb:63:in <code>run' /home/sunny/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/bin/rake:33:in</code>' /home/sunny/.rvm/gems/ruby-1.9.3-p194@global/bin/rake:19:in <code>load' /home/sunny/.rvm/gems/ruby-1.9.3-p194@global/bin/rake:19:in</code>' /home/sunny/.rvm/gems/ruby-1.9.3-p194/bin/ruby_noexec_wrapper:14:in <code>eval' /home/sunny/.rvm/gems/ruby-1.9.3-p194/bin/ruby_noexec_wrapper:14:in</code>'</p> <p>What am I doing wrong.</p> <p>Can anyone please help me</p>
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    1. COI would use CORS for this instead of JSONP. Here's a really good resource: http://www.tsheffler.com/blog/?p=428
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      1. USjocey
 

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