app/controllers/geocoder_controller.rb

   1 class GeocoderController < ApplicationController
   2   layout 'site'
   3
   4   require 'net/http'
   5   require 'rexml/document'
   6
   7   before_filter :authorize_web
   8   before_filter :require_user
   9
  10   def search
  11     res_hash = {}
  12     @postcode_arr = []
  13     @res_ary = []
  14
  15     if params[:query][:postcode] != ""
  16       postcode = params[:query][:postcode]
  17       if postcode.match(/(^\d{5}$)|(^\d{5}-\d{4}$)/)
  18         #its a zip code - do something
  19       else
  20         Net::HTTP.start('www.freethepostcode.org') do |http|
  21           resp = http.get("/geocode?postcode=#{postcode}")
  22           lat = resp.body.scan(/[4-6][0-9]\.?[0-9]+/)
  23           lon = resp.body.scan(/[-+][0-9]\.?[0-9]+/)
  24           @postcode_array = [lat, lon]
  25           redirect_to "/index.html?lat=#{@postcode_array[0]}&lon=#{@postcode_array[1]}&zoom=14"
  26         end
  27       end
  28     else
  29       if params[:query][:place_name] != nil or ""
  30         place_name = params[:query][:place_name]
  31         Net::HTTP.start('ws.geonames.org') do |http|
  32           res = http.get("/search?q=#{place_name}&maxRows=10")
  33           xml = REXML::Document.new(res.body)
  34           xml.elements.each("geonames/geoname") do |ele|
  35             res_hash = {}
  36             ele.elements.each("name"){ |n| res_hash['name'] = n.text }
  37             ele.elements.each("countryCode"){ |n| res_hash['country_code'] = n.text }
  38             ele.elements.each("countryNode"){ |n| res_hash['country_name'] = n.text }
  39             ele.elements.each("lat"){ |n| res_hash['lat'] = n.text }
  40             ele.elements.each("lng"){ |n| res_hash['lon']= n.text }
  41             @res_ary << res_hash
  42           end
  43         end
  44       end
  45       redirect_to :controller => 'geocoder', :action => 'results'
  46     end
  47   end
  48
  49   def result
  50
  51   end
  52 end