Code example for `paperclip-location`

20140110012324_create_places.rb

require 'paperclip' #exclude this line in Rails apps

class CreatePlaces < ActiveRecord::Migration
  include Paperclip::Schema #exclude this line in Rails apps

  def self.change
    create_table :places do |t|
      t.boolean :location_locked, default: false, null: false

      t.decimal :lat, precision: 10, scale: 15
      t.decimal :lng, precision: 10, scale: 15
    end

    add_attachment :places, :photo
  end
end

database.yml

development:
  adapter: sqlite3
  database: development.sqlite3
  pool: 5
  timeout: 5000

development.sqlite3

Gemfile

source 'https://rubygems.org'

ruby '2.0.0'

gem 'paperclip-location'

gem 'activerecord'
gem 'sqlite3'

Gemfile.lock

GEM
  remote: https://rubygems.org/
  specs:
    activemodel (4.0.2)
      activesupport (= 4.0.2)
      builder (~> 3.1.0)
    activerecord (4.0.2)
      activemodel (= 4.0.2)
      activerecord-deprecated_finders (~> 1.0.2)
      activesupport (= 4.0.2)
      arel (~> 4.0.0)
    activerecord-deprecated_finders (1.0.3)
    activesupport (4.0.2)
      i18n (~> 0.6, >= 0.6.4)
      minitest (~> 4.2)
      multi_json (~> 1.3)
      thread_safe (~> 0.1)
      tzinfo (~> 0.3.37)
    arel (4.0.1)
    atomic (1.1.14)
    builder (3.1.4)
    climate_control (0.0.3)
      activesupport (>= 3.0)
    cocaine (0.5.3)
      climate_control (>= 0.0.3, < 1.0)
    exifr (1.1.3)
    i18n (0.6.9)
    mime-types (2.0)
    minitest (4.7.5)
    multi_json (1.8.2)
    paperclip (3.5.2)
      activemodel (>= 3.0.0)
      activesupport (>= 3.0.0)
      cocaine (~> 0.5.3)
      mime-types
    paperclip-location (0.0.5)
      exifr (~> 1.1)
      paperclip (~> 3.5)
    sqlite3 (1.3.8)
    thread_safe (0.1.3)
      atomic
    tzinfo (0.3.38)

PLATFORMS
  ruby

DEPENDENCIES
  activerecord
  paperclip-location
  sqlite3

location

#!/usr/bin/env ruby
#
# Scrape the location from a JPG file
#
# Example:
#
#     $ ./location photo_with_gps_metadata.jpg
#     $ Processing love.jpg.....
#     $ Processed file.
#     $ ------- latitude: 39.95116666666667
#     $ ------- longitude: -75.19433333333333
#

require "./setup"

unless file_name = ARGV.pop
  raise ArgumentError, "Don't forget to pass in the path to the image"
end

puts "Processing #{file_name}....."
puts
puts "-------"
puts

image_file = File.open(file_name)

place = Place.new(photo: image_file)

puts
puts "-------"
puts
puts "Processed file."
puts "------- latitude: #{place.lat}"
puts "------- longitude: #{place.lng}"

Rakefile

require 'bundler/setup'

require 'active_record'

include ActiveRecord::Tasks

DatabaseTasks.env = 'development'
DatabaseTasks.db_dir = '.'
DatabaseTasks.database_configuration = YAML.load(File.read('database.yml'))
DatabaseTasks.migrations_paths = 'migrate'

task :environment do
  ActiveRecord::Base.configurations = DatabaseTasks.database_configuration
  ActiveRecord::Base.establish_connection DatabaseTasks.env
end

load 'active_record/railties/databases.rake'

photo_with_gps_metadata.jpg

place.rb

schema.rb

setup.rb