Adds generator

lib/generators/outboxable/install_generator.rb

@@ -0,0 +1,36 @@
+module Outboxable
+  class InstallGenerator < Rails::Generators::Base
+    include Rails::Generators::Migration
+
+    source_root File.expand_path('../../../templates', __FILE__)
+
+    # Copy initializer into user app
+    def copy_initializer
+      copy_file('initializer.rb', 'config/initializers/outboxable.rb')
+    end
+
+    # Copy user information (model & Migrations) into user app
+    def create_user_model
+      target_path = "app/models/outbox.rb"
+      unless File.exist?(File.join(Rails.root, target_path))
+        template("outbox.rb", target_path)
+      else
+        say_status('skipped', "Model outbox already exists")
+      end
+    end
+
+    # Copy migrations
+    def copy_migrations
+      if self.class.migration_exists?('db/migrate', "create_outboxable_outboxes")
+        say_status('skipped', "Migration create_outboxable_outboxes already exists")
+      else
+        migration_template('create_outboxable_outboxes.rb', "db/migrate/create_outboxable_outboxes.rb")
+      end
+    end
+
+    # Use to assign migration time otherwise generator will error
+    def self.next_migration_number(dir)
+      Time.now.utc.strftime("%Y%m%d%H%M%S")
+    end
+  end
+end