convert ruby hash to URL query string … without those square brackets

Question

In Python, I can do this:

>>> import urlparse, urllib
>>> q = urlparse.parse_qsl(\"a=b&a=c&d=e\")
>>> urllib.urlencode(q)
\'a=         


        

Answer 1

As a simple plain Ruby solution (or RubyMotion, in my case), just use this:

class Hash
  def to_param
    self.to_a.map { |x| "#{x[0]}=#{x[1]}" }.join("&")
  end
end

{ fruit: "Apple", vegetable: "Carrot" }.to_param # => "fruit=Apple&vegetable=Carrot"

It only handles simple hashes, though.