Screencast: Geocoder

Downloads in verschiedenen Formaten:

source code mp4 m4v webm ogv

Resourcen:

• Geocoder
• Google Maps API
• Google Maps For Rails

bash

[bash] rails g nifty:scaffold location address:string latitude:float longitude:float rake db:migrate bundle [/bash]

Gemfile

[ruby] gem ‘geocoder’ [/ruby]

models/location.rb

[ruby] geocoded_by :address after_validation :geocode, :if => :address_changed? [/ruby]

locations_controller.rb

[ruby] def index if params[:search].present? @locations = Location.near(params[:search], 50, :order => :distance) else @locations = Location.all end end [/ruby]

locations/show.html.erb

[html] <%= image_tag “http://maps.google.com/maps/api/staticmap?size=450x300&sensor=false&zoom=16&markers=#{@location.latitude}%2C#{@location.longitude}” %>

Nearby locations

<% for location in @location.nearbys(10) %>
• <%= link\_to location.address, location %> (<%= location.distance.round(2) %> miles)
<% end %>

\[/html\]

locations/index.html.erb

[html] <%= form_tag locations_path, :method => :get do %>

<%= text_field_tag :search, params[:search] %> <%= submit_tag “Search Near”, :name => nil %>

<% end %> [/html]