Rails - Feb 2007 - how to convert a Hash to a URL parameter string??? (i.e. ready for incorporating in a URI to be post'ed)

Hi,

I''ve been trying to find out if there is already a Rails or Ruby method
to
convert a Hash to a URL parameter string?  Does one exist?

e.g.
from      { "controller"=>"donate",
"amt"=>"400.00" }
to          controller=donate&amt=400.00

i.e. ready to be appended to the end of a URI for a HTTP POST request

Thanks
Greg

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Just add them into the options for the url_for and you should be in
business. No need to do the conversion first. However, looking at your
example. It seems like donate should be a method of a controller and not the
controller itself. You''d probably be better off with a Contributions
controller [which could provide an index of people who have donated
previously as well as other methods] and just using a CRUDdy new/create kind
of methodology. At any rate, adding :amt => "400.00" to the options
parameter in url_for will place amt as a parameter in the url.

RSL

On 2/10/07, Greg Hauptmann
<greg.hauptmann.ruby-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
>
> Hi,
>
> I''ve been trying to find out if there is already a Rails or Ruby
method to
> convert a Hash to a URL parameter string?  Does one exist?
>
> e.g.
> from      { "controller"=>"donate",
"amt"=>" 400.00" }
> to          controller=donate&amt=400.00
>
> i.e. ready to be appended to the end of a URI for a HTTP POST request
>
> Thanks
> Greg
>
> >
>
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My scenario was actually a manual HTTP request (see below).  I was
interested in whether there is an existing ruby or rails method to convert
the hash to a string (in the form of a URL parameter string)?  I know I can
do this manually in ruby quite readily, but just very curious to know
whether there is a method already there to do it in one hit?


    postData = {"cc"=>"USD",
"st"=>"Completed" }   #<=== Doesn''t seem to
work, needs to be a string
    responseString = ""
    Net::HTTP.start(uri.host, uri.port) do |request|
        responseString = request.post(uri.path, postData).body
    end

Greg


On 2/11/07, Russell Norris
<sconds-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
>
> Just add them into the options for the url_for and you should be in
> business. No need to do the conversion first. However, looking at your
> example. It seems like donate should be a method of a controller and not
the
> controller itself. You''d probably be better off with a
Contributions
> controller [which could provide an index of people who have donated
> previously as well as other methods] and just using a CRUDdy new/create
kind
> of methodology. At any rate, adding :amt => " 400.00" to the
options
> parameter in url_for will place amt as a parameter in the url.
>
> RSL
>
> On 2/10/07, Greg Hauptmann <
greg.hauptmann.ruby-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> >
> > Hi,
> >
> > I''ve been trying to find out if there is already a Rails or
Ruby method
> > to convert a Hash to a URL parameter string?  Does one exist?
> >
> > e.g.
> > from      { "controller"=>"donate",
"amt"=>" 400.00" }
> > to          controller=donate&amt=400.00
> >
> > i.e. ready to be appended to the end of a URI for a HTTP POST request
> >
> > Thanks
> > Greg
> >
> >
> >
>
> >
>
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