Use a more rails like way for the new coordinates link, which also localizes the...

[rails.git] / app / controllers / geocoder_controller.rb

diff --git a/app/controllers/geocoder_controller.rb b/app/controllers/geocoder_controller.rb
index f4093c75ac8ef13bc000e4098fe7a32154191d17..f286ab9d3401046e51828e1e8e430e8f58338e22 100644 (file)
--- a/app/controllers/geocoder_controller.rb
+++ b/app/controllers/geocoder_controller.rb
@@ -3,18 +3,21 @@ class GeocoderController < ApplicationController
   require 'net/http'
   require 'rexml/document'
 
   require 'net/http'
   require 'rexml/document'
 

-  POSTCODE_ZOOM = 15
-  GEONAMES_ZOOM = 12
-

   def search
     query = params[:query]
     results = Array.new
 
   def search
     query = params[:query]
     results = Array.new
 

-    if query.match(/^\d{5}(-\d{4})?$/)
+    query.sub(/^\s+/, "")
+    query.sub(/\s+$/, "")
+
+    if query.match(/^[+-]?\d+(\.\d*)?\s*[\s,]\s*[+-]?\d+(\.\d*)?$/)
+      results.push search_latlon(query)
+    elsif query.match(/^\d{5}(-\d{4})?$/)

       results.push search_us_postcode(query)
       results.push search_us_postcode(query)

-    elsif query.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])\s*[0-9][ABD-HJLNP-UW-Z]{2})/i)
+    elsif query.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])\s*[0-9][ABD-HJLNP-UW-Z]{2})$/i)

       results.push search_uk_postcode(query)
       results.push search_uk_postcode(query)

-    elsif query.match(/[A-Z]\d[A-Z]\s*\d[A-Z]\d/i)
+      results.push search_osm_namefinder(query)
+    elsif query.match(/^[A-Z]\d[A-Z]\s*\d[A-Z]\d$/i)

       results.push search_ca_postcode(query)
     else
       results.push search_osm_namefinder(query)
       results.push search_ca_postcode(query)
     else
       results.push search_osm_namefinder(query)


@@ -28,7 +31,7 @@ class GeocoderController < ApplicationController
 
       if results_count == 1
         position = results.collect { |s| s[:results] }.compact.flatten[0]
 
       if results_count == 1
         position = results.collect { |s| s[:results] }.compact.flatten[0]

-        page.call "setPosition", position[:lat], position[:lon], position[:zoom]
+        page.call "setPosition", position[:lat].to_f, position[:lon].to_f, position[:zoom].to_i

       else
         page.call "openSidebar"
       end
       else
         page.call "openSidebar"
       end


@@ -54,6 +57,29 @@ class GeocoderController < ApplicationController
 
 private
 
 
 private
 

+  def search_latlon(query)
+    results = Array.new
+
+    # decode the location
+    if m = query.match(/^([+-]?\d+(\.\d*)?)\s*[\s,]\s*([+-]?\d+(\.\d*)?)$/)
+      lat = m[1].to_f
+      lon = m[3].to_f
+    end
+
+    # generate results
+    if lat < -90 or lat > 90
+      return { :source => "Internal", :url => "http://openstreetmap.org/", :error => "Latitude #{lat} out of range" }
+    elsif lon < -180 or lon > 180
+      return { :source => "Internal", :url => "http://openstreetmap.org/", :error => "Longitude #{lon} out of range" }
+    else
+      results.push({:lat => lat, :lon => lon,
+                    :zoom => APP_CONFIG['postcode_zoom'],
+                    :name => "#{lat}, #{lon}"})
+
+      return { :source => "Internal", :url => "http://openstreetmap.org/", :results => results }
+    end
+  end
+

   def search_us_postcode(query)
     results = Array.new
 
   def search_us_postcode(query)
     results = Array.new
 


@@ -63,7 +89,8 @@ private
     # parse the response
     unless response.match(/couldn't find this zip/)
       data = response.split(/\s*,\s+/) # lat,long,town,state,zip
     # parse the response
     unless response.match(/couldn't find this zip/)
       data = response.split(/\s*,\s+/) # lat,long,town,state,zip

-      results.push({:lat => data[0], :lon => data[1], :zoom => POSTCODE_ZOOM,
+      results.push({:lat => data[0], :lon => data[1],
+                    :zoom => APP_CONFIG['postcode_zoom'],

                     :prefix => "#{data[2]}, #{data[3]}, ",
                     :name => data[4]})
     end
                     :prefix => "#{data[2]}, #{data[3]}, ",
                     :name => data[4]})
     end


@@ -83,8 +110,10 @@ private
     unless response.match(/Error/)
       dataline = response.split(/\n/)[1]
       data = dataline.split(/,/) # easting,northing,postcode,lat,long
     unless response.match(/Error/)
       dataline = response.split(/\n/)[1]
       data = dataline.split(/,/) # easting,northing,postcode,lat,long

-      results.push({:lat => data[3], :lon => data[4], :zoom => POSTCODE_ZOOM,
-                    :name => data[2].gsub(/'/, "")})
+      postcode = data[2].gsub(/'/, "")
+      zoom = APP_CONFIG['postcode_zoom'] - postcode.count("#")
+      results.push({:lat => data[3], :lon => data[4], :zoom => zoom,
+                    :name => postcode})

     end
 
     return { :source => "NPEMap / FreeThePostcode", :url => "http://www.npemap.org.uk/", :results => results }
     end
 
     return { :source => "NPEMap / FreeThePostcode", :url => "http://www.npemap.org.uk/", :results => results }


@@ -99,10 +128,10 @@ private
     response = fetch_xml("http://geocoder.ca/?geoit=XML&postal=#{escape_query(query)}")
 
     # parse the response
     response = fetch_xml("http://geocoder.ca/?geoit=XML&postal=#{escape_query(query)}")
 
     # parse the response

-    unless response.get_elements("geodata/error")
+    if response.get_elements("geodata/error").empty?

       results.push({:lat => response.get_text("geodata/latt").to_s,
                     :lon => response.get_text("geodata/longt").to_s,
       results.push({:lat => response.get_text("geodata/latt").to_s,
                     :lon => response.get_text("geodata/longt").to_s,

-                    :zoom => POSTCODE_ZOOM,
+                    :zoom => APP_CONFIG['postcode_zoom'],

                     :name => query.upcase})
     end
 
                     :name => query.upcase})
     end
 


@@ -115,7 +144,7 @@ private
     results = Array.new
 
     # ask OSM namefinder
     results = Array.new
 
     # ask OSM namefinder

-    response = fetch_xml("http://www.frankieandshadow.com/osm/search.xml?find=#{escape_query(query)}")
+    response = fetch_xml("http://gazetteer.openstreetmap.org/namefinder/search.xml?find=#{escape_query(query)}")

 
     # parse the response
     response.elements.each("searchresults/named") do |named|
 
     # parse the response
     response.elements.each("searchresults/named") do |named|


@@ -126,28 +155,62 @@ private
       type = named.attributes["info"].to_s.capitalize
       name = named.attributes["name"].to_s
       description = named.elements["description"].to_s
       type = named.attributes["info"].to_s.capitalize
       name = named.attributes["name"].to_s
       description = named.elements["description"].to_s

+

       if name.empty?
         prefix = ""
         name = type
       else
         prefix = "#{type} "
       end
       if name.empty?
         prefix = ""
         name = type
       else
         prefix = "#{type} "
       end

+

       if place
         distance = format_distance(place.attributes["approxdistance"].to_i)
         direction = format_direction(place.attributes["direction"].to_i)
       if place
         distance = format_distance(place.attributes["approxdistance"].to_i)
         direction = format_direction(place.attributes["direction"].to_i)

-        placename = place.attributes["name"].to_s
+        placename = format_name(place.attributes["name"].to_s)

         suffix = ", #{distance} #{direction} of #{placename}"
         suffix = ", #{distance} #{direction} of #{placename}"

+
+        if place.attributes["rank"].to_i <= 30
+          parent = nil
+          parentrank = 0
+          parentscore = 0
+
+          place.elements.each("nearestplaces/named") do |nearest|
+            nearestrank = nearest.attributes["rank"].to_i
+            nearestscore = nearestrank / nearest.attributes["distance"].to_f
+
+            if nearestrank > 30 and
+               ( nearestscore > parentscore or
+                 ( nearestscore == parentscore and nearestrank > parentrank ) )
+              parent = nearest
+              parentrank = nearestrank
+              parentscore = nearestscore
+            end
+          end
+
+          if parent
+            parentname = format_name(parent.attributes["name"].to_s)
+
+            if  place.attributes["info"].to_s == "suburb"
+              suffix = "#{suffix}, #{parentname}"
+            else
+              parentdistance = format_distance(parent.attributes["approxdistance"].to_i)
+              parentdirection = format_direction(parent.attributes["direction"].to_i)
+              suffix = "#{suffix} (#{parentdistance} #{parentdirection} of #{parentname})"
+            end
+          end
+        end

       else
         suffix = ""
       end
       else
         suffix = ""
       end

+

       results.push({:lat => lat, :lon => lon, :zoom => zoom,
                     :prefix => prefix, :name => name, :suffix => suffix,
                     :description => description})
     end
 
       results.push({:lat => lat, :lon => lon, :zoom => zoom,
                     :prefix => prefix, :name => name, :suffix => suffix,
                     :description => description})
     end
 

-    return { :source => "OpenStreetMap Namefinder", :url => "http://www.frankieandshadow.com/osm/", :results => results }
+    return { :source => "OpenStreetMap Namefinder", :url => "http://gazetteer.openstreetmap.org/namefinder/", :results => results }

   rescue Exception => ex
   rescue Exception => ex

-    return { :source => "OpenStreetMap Namefinder", :url => "http://www.frankieandshadow.com/osm/", :error => "Error contacting www.frankieandshadow.com: #{ex.to_s}" }
+    return { :source => "OpenStreetMap Namefinder", :url => "http://gazetteer.openstreetmap.org/namefinder/", :error => "Error contacting gazetteer.openstreetmap.org: #{ex.to_s}" }

   end
 
   def search_geonames(query)
   end
 
   def search_geonames(query)


@@ -162,7 +225,8 @@ private
       lon = geoname.get_text("lng").to_s
       name = geoname.get_text("name").to_s
       country = geoname.get_text("countryName").to_s
       lon = geoname.get_text("lng").to_s
       name = geoname.get_text("name").to_s
       country = geoname.get_text("countryName").to_s

-      results.push({:lat => lat, :lon => lon, :zoom => GEONAMES_ZOOM,
+      results.push({:lat => lat, :lon => lon,
+                    :zoom => APP_CONFIG['geonames_zoom'],

                     :name => name,
                     :suffix => ", #{country}"})
     end
                     :name => name,
                     :suffix => ", #{country}"})
     end


@@ -176,7 +240,7 @@ private
     results = Array.new
 
     # ask OSM namefinder
     results = Array.new
 
     # ask OSM namefinder

-    response = fetch_xml("http://www.frankieandshadow.com/osm/search.xml?find=#{types}+near+#{lat},#{lon}&max=#{max}")
+    response = fetch_xml("http://gazetteer.openstreetmap.org/namefinder/search.xml?find=#{types}+near+#{lat},#{lon}&max=#{max}")

 
     # parse the response
     response.elements.each("searchresults/named") do |named|
 
     # parse the response
     response.elements.each("searchresults/named") do |named|


@@ -195,9 +259,9 @@ private
                     :description => description})
     end
 
                     :description => description})
     end
 

-    return { :type => types.capitalize, :source => "OpenStreetMap Namefinder", :url => "http://www.frankieandshadow.com/osm/", :results => results }
+    return { :type => types.capitalize, :source => "OpenStreetMap Namefinder", :url => "http://gazetteer.openstreetmap.org/namefinder/", :results => results }

   rescue Exception => ex
   rescue Exception => ex

-    return { :type => types.capitalize, :source => "OpenStreetMap Namefinder", :url => "http://www.frankieandshadow.com/osm/", :error => "Error contacting www.frankieandshadow.com: #{ex.to_s}" }
+    return { :type => types.capitalize, :source => "OpenStreetMap Namefinder", :url => "http://gazetteer.openstreetmap.org/namefinder/", :error => "Error contacting gazetteer.openstreetmap.org: #{ex.to_s}" }

   end
 
   def description_geonames(lat, lon)
   end
 
   def description_geonames(lat, lon)


@@ -215,7 +279,7 @@ private
 
     return { :type => "Location", :source => "GeoNames", :url => "http://www.geonames.org/", :results => results }
   rescue Exception => ex
 
     return { :type => "Location", :source => "GeoNames", :url => "http://www.geonames.org/", :results => results }
   rescue Exception => ex

-    return { :type => types.capitalize, :source => "OpenStreetMap Namefinder", :url => "http://www.frankieandshadow.com/osm/", :error => "Error contacting www.frankieandshadow.com: #{ex.to_s}" }
+    return { :type => "Location", :source => "GeoNames", :url => "http://www.geonames.org/", :error => "Error contacting ws.geonames.org: #{ex.to_s}" }

   end
 
   def fetch_text(url)
   end
 
   def fetch_text(url)


@@ -242,6 +306,10 @@ private
     return "west"
   end
 
     return "west"
   end
 

+  def format_name(name)
+    return name.gsub(/( *\[[^\]]*\])*$/, "")
+  end
+

   def count_results(results)
     count = 0
 
   def count_results(results)
     count = 0