README.md in dir_model-0.1.0 vs README.md in dir_model-0.2.0

@@ -19,32 +19,54 @@
     $ gem install dir_model
 
 ## Usage
 
 ### Export
+
 ```ruby
-class ImageDir < DirModel::Export
-  file :zone_image
+class ImageDir
+  include DirModel
 
-  def zone_image_source
-    File.new("spec/fixtures/image.png")
+  file :image, path: -> { "#{dir}/#{sub_dir}" }, name: -> { "#{image_name}.png" }
+end
+
+class ImageExportDir < ImageDir
+  include DirModel::Export
+
+  def dir
+    'Sectors'
   end
-  def zone_image_name
-    "testing.png"
+
+  def sub_dir
+    source_model.sector_name
   end
 
-  def _generate
-    mk_chdir "level1" do
-      mk_chdir "level2" do
-        copy_file :zone_image
-      end
-    end
+  def image_name
+    source_model.zone_name
   end
+
+  def image
+    source_model.zone
+  end
 end
 
-image_dir = ImageDir.new
-image_dir.path # => path representing the above: "#{image_dir.path}/level1/level2/testing.png"
+fixture_models = [
+  OpenStruct.new({
+    id: 42,
+    sector_name: 'sector_name',
+    zone_name: 'zone_name',
+    zone: File.new('spec/fixtures/image.png'),
+  })
+]
+
+exporter = DirModel::Export::AggregateDir.new(ImageExportDir)
+
+exporter.generate do |dir|
+  models.each { |model| dir << model }
+end
+
+exporter.dir_path # => path of generated dir .../Sectors
 ```
 
 ## zip_dir
 Use [`zip_dir`](https://github.com/FinalCAD/zip_dir) to zip DirModel::Export instances:
 ```ruby
@@ -53,58 +75,6 @@
 zip_file = zipper.generate do |z|
   z.add_and_cleanup_dir __dir_model_export__
 end
 ```
 
-**Ensure that `require zip_dir` occurs before `dir_model`**
-
-## Future
-Define a schema for the directory.
-```ruby
-class ImageDir
-  include DirModel
-  
-  file :zone_image, path: "{{root}}/{{branch}}", name: "{{zone_name}}" 
-end
-```
-
-To export, define your export model like [`ActiveModel::Serializer`](https://github.com/rails-api/active_model_serializers)
-and generate the directory requirements:
-
-```ruby
-class ImageExportDir < ImageDir
-  include DirModel::Export
-  
-  # below are method overrides with default implementation
-  #
-  # overriding is recommended
-  #
-  def root; source_model.root end
-  def branch; source_model.branch end
-  def zone_name; source_model.zone_name end
-  
-  # define your image source
-  #
-  # override with something like: File.new("path/to/image.png")
-  #
-  def zone_image
-    source_model.zone_image
-  end
-end
-```
-
-To import, define your import model, which works like [`ActiveRecord`](http://guides.rubyonrails.org/active_record_querying.html)
-wrapping over a directory:
-
-```ruby
-class ImageImportDir < ImageDir
-  include DirModel::Import
-  
-  #
-  # below are method overrides with default implementation
-  #
-  def root; "level1" end
-  def branch; "level2" end
-  def zone_name; "testing" end
-  def zone_image; File.new("....") end
-end
-```
\ No newline at end of file
+**Ensure that `require zip_dir` occurs before `dir_model` (for now)**