Merge pull request PositiveControl#3 from pjdavis/rails-5-generator

Add a generator for creating deserializers in the rails project.

Gemfile.lock

@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    params_deserializers (2.0.0)
+    params_deserializers (2.1.0)
       activesupport (>= 5.0)
 
 GEM
@@ -53,6 +53,9 @@ GEM
     erubi (1.6.1)
     ffi (1.9.18)
     formatador (0.2.5)
+    generator_spec (0.9.4)
+      activesupport (>= 3.0.0)
+      railties (>= 3.0.0)
     globalid (0.4.0)
       activesupport (>= 4.2.0)
     guard (2.14.1)
@@ -169,11 +172,12 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
+  generator_spec
   guard-rspec
   params_deserializers!
   rails (>= 5.0)
   rspec-rails
   sqlite3
 
 BUNDLED WITH
-   1.16.0.pre.2
+   1.16.1

lib/generators/rails/USAGE

@@ -0,0 +1,5 @@
+Description:
+    Generates a deserializer for the given resource.
+
+Example:
+    `rails generate params_deserializer User first_name last_name birthday`

lib/generators/rails/params_deserializer_generator.rb

@@ -0,0 +1,24 @@
+module Rails
+  module Generators
+    class ParamsDeserializerGenerator < NamedBase
+      source_root File.expand_path('../templates', __FILE__)
+      check_class_collision suffix: 'ParamsDeserializer'
+
+      argument :attributes, type: :array, default: [], banner: 'field field'
+
+      def create_serializer_file
+        template 'deserializer.rb.erb', File.join('app/deserializers', class_path, "#{file_name}_params_deserializer.rb")
+      end
+
+      private
+
+      def attributes_names
+        attributes.map! { |a| a.name.to_sym }
+      end
+
+      def parent_class_name
+        'ParamsDeserializer'
+      end
+    end
+  end
+end

lib/generators/rails/resource_override.rb

@@ -0,0 +1,10 @@
+require 'rails/generators'
+require 'rails/generators/rails/resource/resource_generator'
+
+module Rails
+  module Generators
+    class ResourceGenerator
+      hook_for :params_deserializer, default: true, type: :boolean
+    end
+  end
+end

lib/generators/rails/templates/deserializer.rb.erb

@@ -0,0 +1,5 @@
+<% module_namespacing do -%>
+class <%= class_name %>ParamsDeserializer < <%= parent_class_name %>
+  attributes <%= attributes_names.map(&:inspect).join(", ") %>
+end
+<% end -%>

lib/params_deserializers/version.rb

@@ -28,5 +28,5 @@
 # POSSIBILITY OF SUCH DAMAGE.
 
 module ParamsDeserializers
-  VERSION = "2.0.0"
+  VERSION = "2.1.0"
 end

params_deserializers.gemspec

@@ -48,4 +48,5 @@ Gem::Specification.new do |s|
   s.add_development_dependency 'sqlite3'
   s.add_development_dependency 'rails', '>= 5.0'
   s.add_development_dependency 'rspec-rails'
+  s.add_development_dependency 'generator_spec'
 end

spec/generators/rails/params_deserailizer_generator_spec.rb

@@ -0,0 +1,28 @@
+require "generator_spec"
+require_relative '../../../lib/generators/rails/params_deserializer_generator'
+describe "Rails::Generators::ParamsDeserializerGenerator", type: :generator do
+  tests Rails::Generators::ParamsDeserializerGenerator
+  destination File.expand_path("../../tmp", __FILE__)
+  arguments %w(User birthday)
+
+  before(:each) do
+    prepare_destination
+    run_generator
+  end
+
+  after(:each) do
+    remove_entry_secure(destination_root)
+  end
+
+  it "creates a user deserializer" do
+    expect(destination_root).to have_structure {
+      directory "app" do
+        directory "deserializers" do
+          file "user_params_deserializer.rb" do
+            contains "UserParamsDeserializer < ParamsDeserializer"
+          end
+        end
+      end
+    }
+  end
+end