From 3b4ee4cb0f3b04a48abd69ff10c3b1779b2bd736 Mon Sep 17 00:00:00 2001
From: Nick Black <nickb@svn.openstreetmap.org>
Date: Tue, 24 Apr 2007 11:18:01 +0000
Subject: [PATCH] more geocoder stuff

---
 app/controllers/geocoder_controller.rb | 81 +++++++++++++++++---------
 1 file changed, 55 insertions(+), 26 deletions(-)

diff --git a/app/controllers/geocoder_controller.rb b/app/controllers/geocoder_controller.rb
index 8ef43ec6d..c12c0525b 100644
--- a/app/controllers/geocoder_controller.rb
+++ b/app/controllers/geocoder_controller.rb
@@ -5,9 +5,7 @@ class GeocoderController < ApplicationController
   require 'rexml/document'
 
   def search
-    res_hash = {}
     @postcode_arr = []
-    @res_ary = []
 
     if params[:query][:postcode] 
       postcode = params[:query][:postcode].upcase
@@ -19,13 +17,14 @@ class GeocoderController < ApplicationController
         Net::HTTP.start('rpc.geocoder.us') do |http|
           resp = http.get("/service/csv?zip=#{postcode}")
           if resp.body.match(/couldn't find this zip/)
-              redirect_to "/index.html?error=invalid_zip_code"
-              return
+            redirect_to "/index.html?error=invalid_zip_code"
+            return
           end
           data = resp.body.split(/, /) # lat,long,town,state,zip
           lat = data[0] 
           lon = data[1]
           redirect_to "/index.html?lat=#{lat}&lon=#{lon}&zoom=14"
+          return
         end
       elsif postcode.match(/^([A-Z]{1,2}\d+[A-Z]?\s*\d[A-Z]{2})/)
         # It matched our naive UK postcode regexp
@@ -37,6 +36,7 @@ class GeocoderController < ApplicationController
           lat = data[3] 
           lon = data[4]
           redirect_to "/index.html?lat=#{lat}&lon=#{lon}&zoom=14"
+          return
         end
       elsif postcode.match(/^[A-Z]\d[A-Z]\s*\d[A-Z]\d/)
         # It's a canadian postcode
@@ -49,7 +49,25 @@ class GeocoderController < ApplicationController
           lat = data_lat.split(/[<>]/)[1]
           lon = data_lon.split(/[<>]/)[1]
           redirect_to "/index.html?lat=#{lat}&lon=#{lon}&zoom=14"
+          return
+        end
+      elsif postcode.match(/(GIR 0AA|[A-PR-UWYZ]([0-9]{1,2}|([A-HK-Y][0-9]|[A-HK-Y][0-9]([0-9]|[ABEHMNPRV-Y]))|[0-9][A-HJKS-UW]) [0-9][ABD-HJLNP-UW-Z]{2})
+        /)
+        #its a UK postcode
+        begin
+          Net::HTTP.start('www.freethepostcode.org') do |http|
+            resp = http.get("/geocode?postcode=#{postcode}")
+            lat = resp.body.scan(/[4-6][0-9]\.?[0-9]+/)
+            lon = resp.body.scan(/[-+][0-9]\.?[0-9]+/)
+            redirect_to "/index.html?lat=#{lat}&lon=#{lon}&zoom=14"
+            return
+          end
+        rescue
+          redirect_to "/index.html"
+          #redirect to somewhere else
         end
+        redirect_to "/index.html?lat=#{lat}&lon=#{lon}&zoom=14"
+        #redirect_to "/index.html?error=unknown_postcode_or_zip"
       else
         # Some other postcode / zip code
         # Throw it at geonames, and see if they have any luck with it
@@ -57,9 +75,9 @@ class GeocoderController < ApplicationController
           resp = http.get("/postalCodeSearch?postalcode=#{escaped_postcode}&maxRows=1")
           hits = resp.body.slice(/totalResultsCount>.*?</).split(/[<>]/)[1]
           if hits == "0"
-             # Geonames doesn't know, it's probably wrong
-             redirect_to "/index.html?error=unknown_postcode_or_zip"
-             return
+            # Geonames doesn't know, it's probably wrong
+            redirect_to "/index.html?error=unknown_postcode_or_zip"
+            return
           end
           data_lat = resp.body.slice(/lat>.*?</)
           data_lon = resp.body.slice(/lng>.*?</)
@@ -69,27 +87,38 @@ class GeocoderController < ApplicationController
         end
       end
     else
-      if params[:query][:place_name] != nil or "" 
-        place_name = params[:query][:place_name]
-        Net::HTTP.start('ws.geonames.org') do |http|
-          res = http.get("/search?q=#{place_name}&maxRows=10")
-          xml = REXML::Document.new(res.body)
-          xml.elements.each("geonames/geoname") do |ele|
-            res_hash = {}
-            ele.elements.each("name"){ |n| res_hash['name'] = n.text }
-            ele.elements.each("countryCode"){ |n| res_hash['country_code'] = n.text }
-            ele.elements.each("countryNode"){ |n| res_hash['country_name'] = n.text }
-            ele.elements.each("lat"){ |n| res_hash['lat'] = n.text }
-            ele.elements.each("lng"){ |n| res_hash['lon']= n.text }
-            @res_ary << res_hash
-          end 
-        end
-      end
-      redirect_to :controller => 'geocoder', :action => 'results', :params => @res_ary
+      # Some other postcode / zip file
+      redirect_to "/index.html?error=unknown_postcode_or_zip"
+      return
     end
+
+    if params[:query][:place_name]  
+      @place_name = params[:query][:place_name]
+      redirect_to :controller => 'geocoder', :action => 'results', :params => {:place_name => @place_name}
+    end 
   end
 
-  def result
-    @res = :params[@res_ary]
+  def results
+    @place_name = params[:place_name]
+    res_hash = {}
+    @res_ary = []
+    begin
+      Net::HTTP.start('ws.geonames.org') do |http|
+        res = http.get("/search?q=#{@place_name}&maxRows=10")
+        xml = REXML::Document.new(res.body)
+        xml.elements.each("geonames/geoname") do |ele|
+          res_hash = {}
+          ele.elements.each("name"){ |n| res_hash['name'] = n.text }
+          ele.elements.each("countryCode"){ |n| res_hash['countrycode'] = n.text }
+          ele.elements.each("countryName"){ |n| res_hash['countryname'] = n.text }
+          ele.elements.each("lat"){ |n| res_hash['lat'] = n.text }
+          ele.elements.each("lng"){ |n| res_hash['lon']= n.text }
+          @res_ary << res_hash
+        end 
+      end
+    rescue
+      #Flash a notice to say that geonames is broken
+      redirect_to "/index.html"
+    end
   end
 end
-- 
2.39.5