Added Bundler and Datamapper

Gemfile

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+source "http://rubygems.org"
+
+gem 'sinatra'
+gem 'sinatra-reloader'
+#gem 'activerecord'
+#gem 'sinatra-activerecord'
+gem 'datamapper'
+gem 'dm-sqlite-adapter'
+gem 'sqlite3'
+gem 'json'

Gemfile.lock

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+GEM
+  remote: http://rubygems.org/
+  specs:
+    addressable (2.2.7)
+    backports (2.5.1)
+    bcrypt-ruby (3.0.1)
+    data_objects (0.10.8)
+      addressable (~> 2.1)
+    datamapper (1.2.0)
+      dm-aggregates (~> 1.2.0)
+      dm-constraints (~> 1.2.0)
+      dm-core (~> 1.2.0)
+      dm-migrations (~> 1.2.0)
+      dm-serializer (~> 1.2.0)
+      dm-timestamps (~> 1.2.0)
+      dm-transactions (~> 1.2.0)
+      dm-types (~> 1.2.0)
+      dm-validations (~> 1.2.0)
+    dm-aggregates (1.2.0)
+      dm-core (~> 1.2.0)
+    dm-constraints (1.2.0)
+      dm-core (~> 1.2.0)
+    dm-core (1.2.0)
+      addressable (~> 2.2.6)
+    dm-do-adapter (1.2.0)
+      data_objects (~> 0.10.6)
+      dm-core (~> 1.2.0)
+    dm-migrations (1.2.0)
+      dm-core (~> 1.2.0)
+    dm-serializer (1.2.1)
+      dm-core (~> 1.2.0)
+      fastercsv (~> 1.5.4)
+      json (~> 1.6.1)
+      json_pure (~> 1.6.1)
+      multi_json (~> 1.0.3)
+    dm-sqlite-adapter (1.2.0)
+      dm-do-adapter (~> 1.2.0)
+      do_sqlite3 (~> 0.10.6)
+    dm-timestamps (1.2.0)
+      dm-core (~> 1.2.0)
+    dm-transactions (1.2.0)
+      dm-core (~> 1.2.0)
+    dm-types (1.2.1)
+      bcrypt-ruby (~> 3.0.0)
+      dm-core (~> 1.2.0)
+      fastercsv (~> 1.5.4)
+      json (~> 1.6.1)
+      multi_json (~> 1.0.3)
+      stringex (~> 1.3.0)
+      uuidtools (~> 2.1.2)
+    dm-validations (1.2.0)
+      dm-core (~> 1.2.0)
+    do_sqlite3 (0.10.8)
+      data_objects (= 0.10.8)
+    eventmachine (0.12.10)
+    fastercsv (1.5.4)
+    json (1.6.6)
+    json_pure (1.6.6)
+    multi_json (1.0.4)
+    rack (1.4.1)
+    rack-protection (1.2.0)
+      rack
+    rack-test (0.6.1)
+      rack (>= 1.0)
+    sinatra (1.3.2)
+      rack (~> 1.3, >= 1.3.6)
+      rack-protection (~> 1.2)
+      tilt (~> 1.3, >= 1.3.3)
+    sinatra-contrib (1.3.1)
+      backports (>= 2.0)
+      eventmachine
+      rack-protection
+      rack-test
+      sinatra (~> 1.3.0)
+      tilt (~> 1.3)
+    sinatra-reloader (1.0)
+      sinatra-contrib
+    sqlite3 (1.3.5)
+    stringex (1.3.2)
+    tilt (1.3.3)
+    uuidtools (2.1.2)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  datamapper
+  dm-sqlite-adapter
+  json
+  sinatra
+  sinatra-reloader
+  sqlite3

Rakefile

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+#require 'app'
+require 'sinatra/activerecord/rake'

app.rb

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+require 'rubygems'
+require 'sinatra'
+require 'data_mapper'
+require 'json'
+
+DataMapper.setup(:default, "sqlite3::memory:")
+
+
+class Province
+  include DataMapper::Resource
+  property :id, Serial
+  property :name, String
+
+  attr_accessor :name
+
+  def initialize(name)
+    @name = name
+  end
+
+  def to_json(*)
+    {name: @name}.to_json
+  end
+end
+
+get '/provinces' do
+  provinces = Province.all
+  content_type :json
+  provinces.to_json
+end
+
+class IncidentType
+  include DataMapper::Resource
+  property :id, Serial
+  property :name, String
+
+  attr_accessor :name
+
+  def initialize(name)
+    @name = name
+  end
+
+  def to_json(*)
+    {name: @name}.to_json
+  end
+end
+
+get '/incident_types' do
+  incident_types = IncidentType.all
+  content_type :json
+  incident_types.to_json
+end
+
+DataMapper.auto_upgrade!