app/controllers/geocoder_controller.rb

   1 class GeocoderController < ApplicationController
   2
   3   require 'net/http'
   4   require 'rexml/document'
   5
   6   def search
   7     @res_hash = {}
   8     @postcode_arr = []
   9
  10
  11     if params[:query][:place_name] != nil or ""
  12       place_name = params[:query][:place_name]
  13       Net::HTTP.start('ws.geonames.org') do |http|
  14         res = http.get("/search?q=#{place_name}&maxRows=10")
  15         xml = REXML::Document.new(res.body)
  16         xml.elements.each("/geonames/geoname") do |ele|
  17           ele.elements.each("name"){ |n| @res_hash['name'] = n.text }
  18           ele.elements.each("countryCode"){ |n| @res_hash['country'] = n.text }
  19           ele.elements.each("lat"){ |n| @res_hash['lat'] = n.text }
  20           ele.elements.each("lng"){ |n| @res_hash['lon']= n.text }
  21         end
  22       end
  23     end
  24
  25     if params[:query][:postcode]
  26       postcode = params[:query][:postcode]
  27       Net::HTTP.start('www.freethepostcode.org') do |http|
  28         unless resp.code ~ /^2*/
  29         resp = http.get("/geocode?postcode=#{postcode}")
  30         lat = resp.body.scan(/[4-6][0-9]\.?[0-9]+/)
  31         lon = resp.body.scan(/[-+][0-9]\.?[0-9]+/)
  32         @postcode_array = [lat, lon]
  33       else
  34       end
  35       redirect_to "/index.html?lat=#{@postcode_array[0]}&lon=#{@postcode_array[1]}&zoom=14"
  36     end
  37   end
  38 end