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more geocoder stuff

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This commit is contained in:
Nick Black 2007-04-24 11:18:01 +00:00
parent 738cf50d08
commit 3b4ee4cb0f
1 changed files with 55 additions and 26 deletions
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81
app/controllers/geocoder_controller.rb
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@ -5,9 +5,7 @@ class GeocoderController < ApplicationController
require 'rexml/document' require 'rexml/document'
def search def search
res_hash = {}
@postcode_arr = [] @postcode_arr = []
@res_ary = []
if params[:query][:postcode] if params[:query][:postcode]
postcode = params[:query][:postcode].upcase postcode = params[:query][:postcode].upcase
@ -19,13 +17,14 @@ class GeocoderController < ApplicationController
Net::HTTP.start('rpc.geocoder.us') do |http| Net::HTTP.start('rpc.geocoder.us') do |http|
resp = http.get("/service/csv?zip=#{postcode}") resp = http.get("/service/csv?zip=#{postcode}")
if resp.body.match(/couldn't find this zip/) if resp.body.match(/couldn't find this zip/)
redirect_to "/index.html?error=invalid_zip_code" redirect_to "/index.html?error=invalid_zip_code"
return return
end end
data = resp.body.split(/, /) # lat,long,town,state,zip data = resp.body.split(/, /) # lat,long,town,state,zip
lat = data[0] lat = data[0]
lon = data[1] lon = data[1]
redirect_to "/index.html?lat=#{lat}&lon=#{lon}&zoom=14" redirect_to "/index.html?lat=#{lat}&lon=#{lon}&zoom=14"
return
end end
elsif postcode.match(/^([A-Z]{1,2}\d+[A-Z]?\s*\d[A-Z]{2})/) elsif postcode.match(/^([A-Z]{1,2}\d+[A-Z]?\s*\d[A-Z]{2})/)
# It matched our naive UK postcode regexp # It matched our naive UK postcode regexp
@ -37,6 +36,7 @@ class GeocoderController < ApplicationController
lat = data[3] lat = data[3]
lon = data[4] lon = data[4]
redirect_to "/index.html?lat=#{lat}&lon=#{lon}&zoom=14" redirect_to "/index.html?lat=#{lat}&lon=#{lon}&zoom=14"
return
end end
elsif postcode.match(/^[A-Z]\d[A-Z]\s*\d[A-Z]\d/) elsif postcode.match(/^[A-Z]\d[A-Z]\s*\d[A-Z]\d/)
# It's a canadian postcode # It's a canadian postcode
@ -49,7 +49,25 @@ class GeocoderController < ApplicationController
lat = data_lat.split(/[<>]/)[1] lat = data_lat.split(/[<>]/)[1]
lon = data_lon.split(/[<>]/)[1] lon = data_lon.split(/[<>]/)[1]
redirect_to "/index.html?lat=#{lat}&lon=#{lon}&zoom=14" redirect_to "/index.html?lat=#{lat}&lon=#{lon}&zoom=14"
return
end 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 else
# Some other postcode / zip code # Some other postcode / zip code
# Throw it at geonames, and see if they have any luck with it # 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") resp = http.get("/postalCodeSearch?postalcode=#{escaped_postcode}&maxRows=1")
hits = resp.body.slice(/totalResultsCount>.*?</).split(/[<>]/)[1] hits = resp.body.slice(/totalResultsCount>.*?</).split(/[<>]/)[1]
if hits == "0" if hits == "0"
# Geonames doesn't know, it's probably wrong # Geonames doesn't know, it's probably wrong
redirect_to "/index.html?error=unknown_postcode_or_zip" redirect_to "/index.html?error=unknown_postcode_or_zip"
return return
end end
data_lat = resp.body.slice(/lat>.*?</) data_lat = resp.body.slice(/lat>.*?</)
data_lon = resp.body.slice(/lng>.*?</) data_lon = resp.body.slice(/lng>.*?</)
@ -69,27 +87,38 @@ class GeocoderController < ApplicationController
end end
end end
else else
if params[:query][:place_name] != nil or "" # Some other postcode / zip file
place_name = params[:query][:place_name] redirect_to "/index.html?error=unknown_postcode_or_zip"
Net::HTTP.start('ws.geonames.org') do |http| return
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
end 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 end
def result def results
@res = :params[@res_ary] @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
end end