app/controllers/geocoder_controller.rb

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