Rails - May 2006 - Google Map

Used a great howto @

http://iamrice.org/articles/2005/12/09/using-google-maps-in-the-uk-with-rails

for using google maps on uk sites.  Just having one issue I can''t seem 
to work out how to draw the postcode from my table I keep getting hit by 
method errors.

The controller is

require ''postcode_2_latlong''
postcode = Postcode.new("TN22 2LG")
# I want this to be a postcode from my database not TN22...
latlong = postcode.to_latlong

Then postcode.rb in /lib reads...

require ''uri''
require ''open-uri''

class Postcode
  def initialize(postcode)
    @postcode = postcode
  end

  def to_latlong
    #postcode = URI.escape(@postcode)
    postcode = @postcode.gsub(/ /, "+")
    postcode2 = @postcode.gsub(/ /, "")

    #open("http://maps.google.com/maps?q=#{postcode}") do |f|
   
open("http://multimap.com/map/browse.cgi?client=public&search_result=&db=pc&cidr_client=none&lang=&keepicon=true&pc=#{postcode2}&advanced=&client=public&addr2=&quicksearch=#{postcode}")
do |f|
      #coords = f.read.match(/lat=\"(-?\d+\.\d+)\" 
lng=\"(-?\d+\.\d+)\"/)
      ret_html = f.read
      coord_lat = ret_html.match(/<dd
class=\"latitude\">\d+:\d+:\d+\w
\((-?\d+\.\d+)\)/)
      coord_lon = ret_html.match(/<dd
class=\"longitude\">\d+:\d+:\d+\w
\((-?\d+\.\d+)\)/)
      unless coord_lat.nil? and coord_lon.nil?
        return { :lat => coord_lat.to_a[1], :long => coord_lon.to_a[1] }
      else
        return nil
      end
    end
  end
end

-- 
Posted via http://www.ruby-forum.com/.

Rob Balfour wrote:
> require ''postcode_2_latlong''
Uh huh.
> Then postcode.rb in /lib reads...
Ahh.

Change require to ''postcode'', and it''ll look for the
correct file.

It looks like an awesomely useful piece of code - I''m sure
I''ll use it
for my next project!

Good luck,

Tom

I''m using a very similar piece of code that I wrote myself, except
I''m
getting it here:

http://www.samknows.com/toys/coords.php?output=xml&pc=se270nb

It''ll be much faster loading that little bit of code than the massive
amounts that multimap like to send. And, you can get more than one
postcode like so:

http://www.samknows.com/toys/coords.php?output=xml&pc=se270nb,sw47ln,so416et,w126aa

Valid outputs are xml, csv and php.

-Nathan

On 18/05/06, Tom Taylor <tom@tomtaylor.co.uk>
wrote:
> Rob Balfour wrote:
> > require ''postcode_2_latlong''
>
> Uh huh.
>
> > Then postcode.rb in /lib reads...
>
> Ahh.
>
> Change require to ''postcode'', and it''ll look for
the correct file.
>
> It looks like an awesomely useful piece of code - I''m sure
I''ll use it
> for my next project!
>
> Good luck,
>
> Tom
>
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>

njmacinnes@gmail.com wrote:
> I''m using a very similar piece of code that I wrote myself, except
I''m
> getting it here:
> 
> http://www.samknows.com/toys/coords.php?output=xml&pc=se270nb
Looks awesome. Can you make it available somewhere? Saves reinventing 
the wheel!

Thanks a lot,

Tom