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Contents
require 'cgi'
require 'uri'
module RTurk
class Question
attr_accessor :url, :url_params, :frame_height
def initialize(url, opts = {})
@url = url
self.frame_height = opts.delete(:frame_height) || 400
self.url_params = opts
end
def querystring
@url_params.collect { |key, value| [CGI.escape(key.to_s), CGI.escape(value.to_s)].join('=') }.join('&')
end
def url
unless querystring.empty?
# slam the params onto url, if url already has params, add 'em with a &
u = @url.index('?') ? "#{@url}&#{querystring}" : "#{@url}?#{querystring}"
else
u = @url
end
CGI.escapeHTML(u) #URL should be XML/HTML escaped
end
def params
@url_params
end
def params=(param_set)
@url_params = param_set
end
def to_params
raise RTurk::MissingParameters, "needs a url to build an external question" unless @url
# TODO: update the xmlns schema... maybe
xml = <<-XML
<ExternalQuestion xmlns="http://mechanicalturk.amazonaws.com/AWSMechanicalTurkDataSchemas/2006-07-14/ExternalQuestion.xsd">
<ExternalURL>#{url}</ExternalURL>
<FrameHeight>#{frame_height}</FrameHeight>
</ExternalQuestion>
XML
xml
end
end
end
Version data entries
23 entries across 23 versions & 1 rubygems