Extract Rails 3 specific legacy code into a separate file

Author: amatsuda

lib/html5_validators.rb

@@ -22,7 +22,11 @@ class Railtie < ::Rails::Railtie #:nodoc:
         require 'html5_validators/active_record/base'
       end
       ActiveSupport.on_load(:action_view) do
-        require 'html5_validators/action_view/form_helpers'
+        if ActionPack::VERSION::STRING >= '4'
+          require 'html5_validators/action_view/form_helpers'
+        else
+          require 'html5_validators/action_view/form_helpers_rails3'
+        end
       end
     end
   end

lib/html5_validators/action_view/form_helpers.rb

@@ -12,7 +12,7 @@ def inject_maxlength_field
       end
     end
   end
-end if ActionPack::VERSION::STRING >= '4'
+end
 
 
 module ActionView
@@ -29,7 +29,6 @@ def form_for_with_auto_html5_validation_option(record, options = {}, &proc)
       alias_method_chain :form_for, :auto_html5_validation_option
     end
 
-    if ActionPack::VERSION::STRING >= '4'
       module Tags
         class Base #:nodoc:
           include Html5Validators::ActionViewExtension
@@ -70,45 +69,5 @@ def render_with_html5_attributes
           end
         end
       end
-    # ActionPack::VERSION::STRING == '3'
-    else
-      class InstanceTag
-        def to_input_field_tag_with_html5_attributes(field_type, options = {})
-          if object.class.ancestors.include?(ActiveModel::Validations) && (object.auto_html5_validation != false) && (object.class.auto_html5_validation != false)
-            options["required"] ||= object.class.attribute_required?(method_name)
-            options["maxlength"] ||= object.class.attribute_maxlength(method_name)
-            options["max"] ||= object.class.attribute_max(method_name)
-            options["min"] ||= object.class.attribute_min(method_name)
-          end
-          to_input_field_tag_without_html5_attributes field_type, options
-        end
-        alias_method_chain :to_input_field_tag, :html5_attributes
-
-        def to_text_area_tag_with_html5_attributes(options = {})
-          if object.class.ancestors.include?(ActiveModel::Validations) && (object.auto_html5_validation != false) && (object.class.auto_html5_validation != false)
-            options["required"] ||= object.class.attribute_required?(method_name)
-            options["maxlength"] ||= object.class.attribute_maxlength(method_name)
-          end
-          to_text_area_tag_without_html5_attributes options
-        end
-        alias_method_chain :to_text_area_tag, :html5_attributes
-
-        def to_radio_button_tag_with_html5_attributes(tag_value, options = {})
-          if object.class.ancestors.include?(ActiveModel::Validations) && (object.auto_html5_validation != false) && (object.class.auto_html5_validation != false)
-            options["required"] ||= object.class.attribute_required?(method_name)
-          end
-          to_radio_button_tag_without_html5_attributes tag_value, options
-        end
-        alias_method_chain :to_radio_button_tag, :html5_attributes
-
-        def to_check_box_tag_with_html5_attributes(options = {}, checked_value = "1", unchecked_value = "0")
-          if object.class.ancestors.include?(ActiveModel::Validations) && (object.auto_html5_validation != false) && (object.class.auto_html5_validation != false)
-            options["required"] ||= object.class.attribute_required?(method_name)
-          end
-          to_check_box_tag_without_html5_attributes options, checked_value, unchecked_value
-        end
-        alias_method_chain :to_check_box_tag, :html5_attributes
-      end
-    end
   end
 end

lib/html5_validators/action_view/form_helpers_rails3.rb

@@ -0,0 +1,53 @@
+module ActionView
+  module Helpers
+    module FormHelper
+      def form_for_with_auto_html5_validation_option(record, options = {}, &proc)
+        if record.respond_to?(:auto_html5_validation=)
+          if !Html5Validators.enabled || (options[:auto_html5_validation] == false)
+            record.auto_html5_validation = false
+          end
+        end
+        form_for_without_auto_html5_validation_option record, options, &proc
+      end
+      alias_method_chain :form_for, :auto_html5_validation_option
+    end
+
+      class InstanceTag
+        def to_input_field_tag_with_html5_attributes(field_type, options = {})
+          if object.class.ancestors.include?(ActiveModel::Validations) && (object.auto_html5_validation != false) && (object.class.auto_html5_validation != false)
+            options["required"] ||= object.class.attribute_required?(method_name)
+            options["maxlength"] ||= object.class.attribute_maxlength(method_name)
+            options["max"] ||= object.class.attribute_max(method_name)
+            options["min"] ||= object.class.attribute_min(method_name)
+          end
+          to_input_field_tag_without_html5_attributes field_type, options
+        end
+        alias_method_chain :to_input_field_tag, :html5_attributes
+
+        def to_text_area_tag_with_html5_attributes(options = {})
+          if object.class.ancestors.include?(ActiveModel::Validations) && (object.auto_html5_validation != false) && (object.class.auto_html5_validation != false)
+            options["required"] ||= object.class.attribute_required?(method_name)
+            options["maxlength"] ||= object.class.attribute_maxlength(method_name)
+          end
+          to_text_area_tag_without_html5_attributes options
+        end
+        alias_method_chain :to_text_area_tag, :html5_attributes
+
+        def to_radio_button_tag_with_html5_attributes(tag_value, options = {})
+          if object.class.ancestors.include?(ActiveModel::Validations) && (object.auto_html5_validation != false) && (object.class.auto_html5_validation != false)
+            options["required"] ||= object.class.attribute_required?(method_name)
+          end
+          to_radio_button_tag_without_html5_attributes tag_value, options
+        end
+        alias_method_chain :to_radio_button_tag, :html5_attributes
+
+        def to_check_box_tag_with_html5_attributes(options = {}, checked_value = "1", unchecked_value = "0")
+          if object.class.ancestors.include?(ActiveModel::Validations) && (object.auto_html5_validation != false) && (object.class.auto_html5_validation != false)
+            options["required"] ||= object.class.attribute_required?(method_name)
+          end
+          to_check_box_tag_without_html5_attributes options, checked_value, unchecked_value
+        end
+        alias_method_chain :to_check_box_tag, :html5_attributes
+      end
+  end
+end