diff --git a/lib/formtastic-separate_html5_date_and_time.rb b/lib/formtastic-separate_html5_date_and_time.rb
index 797b6f6..ef5c258 100644
--- a/lib/formtastic-separate_html5_date_and_time.rb
+++ b/lib/formtastic-separate_html5_date_and_time.rb
@@ -7,6 +7,10 @@ module Formtastic
         require 'formtastic'
         require 'formtastic-separate_html5_date_and_time/formtastic'
 
+        if defined?(ActiveRecord::Base)
+          require 'formtastic-separate_html5_date_and_time/active_record'
+        end
+
         if defined?(Mongoid::Document)
           require 'formtastic-separate_html5_date_and_time/mongoid'
         end
diff --git a/lib/formtastic-separate_html5_date_and_time/active_record.rb b/lib/formtastic-separate_html5_date_and_time/active_record.rb
new file mode 100644
index 0000000..443a10e
--- /dev/null
+++ b/lib/formtastic-separate_html5_date_and_time/active_record.rb
@@ -0,0 +1,15 @@
+require 'formtastic-separate_html5_date_and_time/processor'
+
+module ActiveRecord
+  module ProcessSeparateDateAndTimePickerInputs
+    def assign_multiparameter_attributes(attrs)
+      Formtastic::SeparateDateAndTimePickerInput::Processor.process(attrs).each do |attribute, value|
+        public_send("#{attribute}=", value)
+      end
+    end
+
+    def update_attributes(attrs = nil)
+      super Formtastic::SeparateDateAndTimePickerInput::Processor.process(attrs)
+    end
+  end
+end
diff --git a/lib/formtastic-separate_html5_date_and_time/mongoid.rb b/lib/formtastic-separate_html5_date_and_time/mongoid.rb
index 1033271..08aa556 100644
--- a/lib/formtastic-separate_html5_date_and_time/mongoid.rb
+++ b/lib/formtastic-separate_html5_date_and_time/mongoid.rb
@@ -1,27 +1,10 @@
 require 'mongoid'
+require 'formtastic-separate_html5_date_and_time/processor'
 
 module Mongoid
   module ProcessSeparateDateAndTimePickerInputs
     def process_attributes(attrs = nil, role = :default, guard_protected_attributes = true)
-      if attrs
-        datetime_attrs = {}
-
-        attrs.each do |key, value|
-          if attr = key[/\A(.*)\((date|time)\)\Z/, 1]
-            datetime_attrs[attr] ||= {}
-            datetime_attrs[attr][key] = value
-          end
-        end
-
-        datetime_attrs.each do |attr, values|
-          attrs[attr] = values["#{attr}(date)"] + ' ' + values["#{attr}(time)"]
-
-          attrs.delete("#{attr}(date)")
-          attrs.delete("#{attr}(time)")
-        end
-      end
-
-      super(attrs, role, guard_protected_attributes)
+      super Formtastic::SeparateDateAndTimePickerInput::Processor.process(attrs), role, guard_protected_attributes
     end
   end
 end
diff --git a/lib/formtastic-separate_html5_date_and_time/processor.rb b/lib/formtastic-separate_html5_date_and_time/processor.rb
new file mode 100644
index 0000000..1a39680
--- /dev/null
+++ b/lib/formtastic-separate_html5_date_and_time/processor.rb
@@ -0,0 +1,29 @@
+module Formtastic
+  module SeparateDateAndTimePickerInput
+    class Processor
+      def self.process(attrs)
+        if attrs
+          attrs = Hash[attrs.dup]
+
+          datetime_attrs = {}
+
+          attrs.each do |key, value|
+            if attr = key[/\A(.*)\((date|time)\)\Z/, 1]
+              datetime_attrs[attr] ||= {}
+              datetime_attrs[attr][key] = value
+            end
+          end
+
+          datetime_attrs.each do |attr, values|
+            attrs[attr] = values["#{attr}(date)"] + ' ' + values["#{attr}(time)"]
+
+            attrs.delete("#{attr}(date)")
+            attrs.delete("#{attr}(time)")
+          end
+        end
+
+        attrs
+      end
+    end
+  end
+end