split Attribute class to separate file

lib/simple_form_object.rb

@@ -1,4 +1,5 @@
-require "simple_form_object/version"
+require_relative "simple_form_object/attribute"
+require_relative "simple_form_object/version"
 require "active_model"
 require "active_support"
 
@@ -45,35 +46,4 @@ def attributes
     end
     attribs
   end
-
-  class Attribute
-    def initialize(name, type = nil, options)
-      @name = name
-      @type = type || :string
-      @options = options
-
-      extract_options
-    end
-
-    attr_accessor :name, :type, :options
-
-    def fake_column
-      self
-    end
-
-    def apply_default_to(form)
-      if form.send(@name).nil?
-        form.send("#{@name}=", @default) if @apply_default
-      end
-    end
-
-    private
-
-    def extract_options
-      @apply_default = true
-      @default = options.fetch(:default) { @apply_default = false; nil }
-      @skip_validations = options.fetch(:skip_validations, false)
-    end
-  end
-
 end

lib/simple_form_object/attribute.rb

@@ -0,0 +1,31 @@
+module SimpleFormObject
+  class Attribute
+    def initialize(name, type = nil, options)
+      @name = name
+      @type = type || :string
+      @options = options
+
+      extract_options
+    end
+
+    attr_accessor :name, :type, :options
+
+    def fake_column
+      self
+    end
+
+    def apply_default_to(form)
+      if form.send(@name).nil?
+        form.send("#{@name}=", @default) if @apply_default
+      end
+    end
+
+    private
+
+    def extract_options
+      @apply_default = true
+      @default = options.fetch(:default) { @apply_default = false; nil }
+      @skip_validations = options.fetch(:skip_validations, false)
+    end
+  end
+end