Merge branch 'master' into staging

3 files changed, 220 insertions, 3 deletions

diff --git a/Gemfile.lock b/Gemfile.lock
index fef3270a3..1d05e0540 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -305,7 +305,7 @@ GEM
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0521)
     mimemagic (0.3.2)
-    mini_portile2 (2.2.0)
+    mini_portile2 (2.3.0)
     minitest (5.10.3)
     multi_json (1.12.1)
     multi_test (0.1.2)
@@ -319,8 +319,8 @@ GEM
     net-ssh-gateway (2.0.0)
       net-ssh (>= 4.0.0)
     newrelic_rpm (4.0.0.332)
-    nokogiri (1.8.0)
-      mini_portile2 (~> 2.2.0)
+    nokogiri (1.8.1)
+      mini_portile2 (~> 2.3.0)
     open4 (1.3.4)
     orm_adapter (0.5.0)
     parser (2.4.0.0)
diff --git a/lib/model_attribute.rb b/lib/model_attribute.rb
new file mode 100644
index 000000000..60580e306
--- /dev/null
+++ b/lib/model_attribute.rb
@@ -0,0 +1,100 @@
+class ModelAttribute
+  attr_reader :klass, :name, :data_type
+
+  def self.all
+    @__all__ ||= []
+  end
+
+  def self.define(klass, name, data_type)
+    all << new(klass, name, data_type)
+  end
+
+  def self.classes
+    all
+      .map(&:klass)
+      .map(&:to_s)
+      .map(&:camelize)
+      .uniq
+  end
+
+  def self.group_by_class
+    all.group_by(&:klass)
+  end
+
+  def self.from_code(code)
+    klass, name = code.split('#').map(&:to_sym)
+
+    methods_by_class(klass).select do |model_attr|
+      model_attr.name == name
+    end.first
+  end
+
+  def self.methods_by_class(klass)
+    all.select do |model_attr|
+      model_attr.klass == klass
+    end
+  end
+
+  def self.methods_by_class_and_type(klass, type)
+    methods_by_class(klass).select do |model_attr|
+      model_attr.data_type == type
+    end
+  end
+
+  def initialize(klass, name, data_type)
+    @klass = klass
+    @name = name
+    @data_type = data_type
+  end
+
+  # Chouette::Route
+  define :route, :name, :string
+  define :route, :published_name, :string
+  define :route, :comment, :string
+  define :route, :number, :string
+  define :route, :direction, :string
+  define :route, :wayback, :string
+
+  # Chouette::JourneyPattern
+  define :journey_pattern, :name, :string
+  define :journey_pattern, :published_name, :string
+  define :journey_pattern, :comment, :string
+  define :journey_pattern, :registration_number, :string
+  define :journey_pattern, :section_status, :integer
+
+  # Chouette::VehicleJourney
+  define :vehicle_journey, :comment, :string
+  define :vehicle_journey, :status_value, :string
+  define :vehicle_journey, :transport_mode, :string
+  define :vehicle_journey, :facility, :string
+  define :vehicle_journey, :published_journey_name, :string
+  define :vehicle_journey, :published_journey_identifier, :string
+  define :vehicle_journey, :vehicle_type_identifier, :string
+  define :vehicle_journey, :number, :integer
+  define :vehicle_journey, :mobility_restricted_suitability, :boolean
+  define :vehicle_journey, :flexible_service, :boolean
+
+  # Chouette::Footnote
+  define :footnote, :code, :string
+  define :footnote, :label, :string
+
+  # Chouette::TimeTable
+  define :time_table, :version, :string
+  define :time_table, :comment, :string
+  define :time_table, :start_date, :date
+  define :time_table, :end_date, :date
+  define :time_table, :color, :string
+
+  # Chouette::RoutingConstraintZone
+  define :routing_constraint_zone, :name, :string
+
+  def code
+    "#{@klass}##{@name}"
+  end
+
+  def ==(other)
+    klass == other.klass &&
+      name == other.name &&
+      data_type == other.data_type
+  end
+end
diff --git a/spec/lib/model_attribute_spec.rb b/spec/lib/model_attribute_spec.rb
new file mode 100644
index 000000000..427e01490
--- /dev/null
+++ b/spec/lib/model_attribute_spec.rb
@@ -0,0 +1,117 @@
+RSpec.describe ModelAttribute do
+  describe ".define" do
+    it "adds a new instance of ModelAttribute to .all" do
+      expect do
+        ModelAttribute.define(:route, :name, :string)
+      end.to change { ModelAttribute.all.length }.by(1)
+
+      model_attr = ModelAttribute.all.last
+
+      expect(model_attr).to be_an_instance_of(ModelAttribute)
+      expect(model_attr.klass).to eq(:route)
+      expect(model_attr.name).to eq(:name)
+      expect(model_attr.data_type).to eq(:string)
+    end
+  end
+
+  describe ".classes" do
+    it "returns the list of classes of ModelAttributes in .all" do
+      ModelAttribute.instance_variable_set(:@__all__, [
+        ModelAttribute.new(:route, :name, :string),
+        ModelAttribute.new(:journey_pattern, :name, :string),
+        ModelAttribute.new(:time_table, :start_date, :date)
+      ])
+
+      expect(ModelAttribute.classes).to match_array([
+        'Route',
+        'JourneyPattern',
+        'TimeTable'
+      ])
+    end
+  end
+
+  describe ".from_code" do
+    it "returns a ModelAttribute from a given code" do
+      ModelAttribute.instance_variable_set(:@__all__, [
+        ModelAttribute.new(:journey_pattern, :name, :string)
+      ])
+
+      expect(ModelAttribute.from_code('journey_pattern#name')).to eq(
+        ModelAttribute.new(:journey_pattern, :name, :string)
+      )
+    end
+  end
+
+  describe ".group_by_class" do
+    it "returns all ModelAttributes grouped by klass" do
+      ModelAttribute.instance_variable_set(:@__all__, [
+        ModelAttribute.new(:route, :name, :string),
+        ModelAttribute.new(:route, :published_name, :string),
+        ModelAttribute.new(:journey_pattern, :name, :string),
+        ModelAttribute.new(:vehicle_journey, :number, :integer)
+      ])
+
+      expect(ModelAttribute.group_by_class).to eq({
+        route: [
+          ModelAttribute.new(:route, :name, :string),
+          ModelAttribute.new(:route, :published_name, :string),
+        ],
+        journey_pattern: [
+          ModelAttribute.new(:journey_pattern, :name, :string),
+        ],
+        vehicle_journey: [
+          ModelAttribute.new(:vehicle_journey, :number, :integer)
+        ]
+      })
+    end
+  end
+
+  describe ".methods_by_class" do
+    it "returns all ModelAttributes for a given class" do
+      ModelAttribute.instance_variable_set(:@__all__, [
+        ModelAttribute.new(:route, :name, :string),
+        ModelAttribute.new(:route, :published_name, :string),
+        ModelAttribute.new(:route, :direction, :string),
+        ModelAttribute.new(:journey_pattern, :name, :string)
+      ])
+
+      expect(ModelAttribute.methods_by_class(:route)).to match_array([
+        ModelAttribute.new(:route, :name, :string),
+        ModelAttribute.new(:route, :published_name, :string),
+        ModelAttribute.new(:route, :direction, :string)
+      ])
+    end
+  end
+
+  describe ".methods_by_class_and_type" do
+    it "returns ModelAttributes of a certain class and type" do
+      ModelAttribute.instance_variable_set(:@__all__, [
+        ModelAttribute.new(:route, :name, :string),
+        ModelAttribute.new(:route, :checked_at, :date),
+        ModelAttribute.new(:journey_pattern, :name, :string),
+        ModelAttribute.new(:journey_pattern, :section_status, :integer)
+      ])
+
+      expect(ModelAttribute.methods_by_class_and_type(:route, :string)).to match_array([
+        ModelAttribute.new(:route, :name, :string)
+      ])
+    end
+  end
+
+  describe "#code" do
+    it "returns a string representation of the attribute" do
+      model_attr = ModelAttribute.new(:route, :name, :string)
+
+      expect(model_attr.code).to eq('route#name')
+    end
+  end
+
+  describe "#==" do
+    it "returns true when :klass, :name, and :data_type attributes match" do
+      route_name = ModelAttribute.new(:route, :name, :string)
+      other_route_name = ModelAttribute.new(:route, :name, :string)
+
+      expect(route_name == other_route_name).to be true
+    end
+  end
+end