Geocoding in Omeka

add_item_snippet.rb

add_item_page.form_with(:method => 'POST') do |item_form|
    item_form['public'] = 1
    item_form['Elements[50][0][text]'] = line[:address]
    # This should really be KML, but it will recognize WKT too.
    item_form['Elements[38][0][geo]'] = line[:point]
    item_form['Elements[38][0][zoom]'] = 10
    item_form['Elements[38][0][mapon]'] = 1
    item_form['Elements[38][0][center_lon]'] = line[:lon]
    item_form['Elements[38][0][center_lat]'] = line[:lat]
 
    item_form['Elements[38][0][text]'] = "POINT(#{line[:address]})" + '////osm
'
end.submit

geocoded.csv

geocoder.rb

require 'csv'
require 'geocoder'

LOCATIONS = './locations.csv'

def degrees_to_meters(lon, lat)
    half_circumference = 20037508.34
    x = lon * half_circumference / 180
    y = Math.log(Math.tan((90 + lat) * Math::PI / 360)) / (Math::PI / 180)

    y = y * half_circumference / 180

    return [x, y]
end

puts 'address,city,state,point,lat,lon'
CSV.foreach(LOCATIONS, :headers => true, :header_converters => :symbol) do |line|
    address_string = "#{line[:address]}, #{line[:city]}, #{line[:state]}"
    result = Geocoder.search(address_string).first

    lat = result.latitude
    lon = result.longitude

    #point = "POINT(#{lon} #{lat})"
    projected = degrees_to_meters(lon, lat)
    point = "POINT(#{projected[0]} #{projected[1]})"

    puts "#{address_string}, #{point}, #{projected[1]}, #{projected[0]}"
end

locations.csv

Address,City,State
"1600 Pennsylvania Ave",Washington,DC
"931 Thomas Jefferson Parkway",Charlottesville,VA
"Eiffel Tower"

populate.rb

require 'rubygems'
require 'mechanize'
require 'csv'

agent = Mechanize.new {|a|
  a.user_agent_alias = 'Mac Safari'
}

agent.get('http://localhost:8888/omeka/admin/') do |page|
  omeka_page = page.form_with(:action => '/omeka/admin/users/login') do |form|
    form.username = 'username'
    form.password = 'password'
  end.submit


  CSV.foreach('./geocoded.csv', :headers => true, :header_converters => :symbol) do |line|
 
    # add logic to fill out form
    # click on items
    item_page = agent.click(omeka_page.link_with(:text => %r/Items/))
    # click on add items
    add_item_page = agent.click(item_page.link_with(:text => %r/Add an Item/))

    puts "Adding #{line[:address]}..."
    puts line[:point]
    puts line[:lon]
    puts line[:lat]

 
    # Add the item to the form
    add_item_page.form_with(:method => 'POST') do |item_form|
        item_form['public'] = 1
        item_form['Elements[50][0][text]'] = line[:address]
        item_form['Elements[38][0][wkt]'] = line[:point]
        item_form['Elements[38][0][zoom]'] = 10
        item_form['Elements[38][0][mapon]'] = 1
        item_form['Elements[38][0][center_lon]'] = line[:lon]
        item_form['Elements[38][0][center_lat]'] = line[:lat]
 
        item_form['Elements[38][0][text]'] = "#{line[:address]}" + '////osm
 
        '
    end.submit
  end
end