README.md in xdan-datetimepicker-rails-2.3.9 vs README.md in xdan-datetimepicker-rails-2.4.1

@@ -31,14 +31,105 @@
 ```
 
 Start using it!
 
 ```coffee
+# /app/assets/javascripts/datetimepicker.js.coffee
+
+#= require jquery.xdan.datetimepicker
+
+@setupDateTimePicker = (container) ->
+  defaults = {
+    formatDate: 'y-m-d',
+    format: 'Y-m-d H:i',
+    allowBlank: true,
+    defaultSelect: false,
+    validateOnBlur: false
+  }
+
+  entries = $(container).find('input.datetimepicker')
+  entries.each (index, entry) ->
+    options = $(entry).data 'datepicker-options'
+    $(entry).datetimepicker $.extend(defaults, options)
+
 $ ->
-  $(".datetimepicker").datetimepicker()
+  setupDateTimePicker $('body')
+
 ```
 
+
 See the [detailed documentation](http://xdsoft.net/jqplugins/datetimepicker/) for more options. When the site is back up I'll try to port some of them into this README or move them to the official repo of [datetimepicker](https://github.com/xdan/datetimepicker).
+
+### SimpleForm Integration
+
+```ruby
+# /app/inputs/datetimepicker_input.rb
+
+class DatetimepickerInput < SimpleForm::Inputs::StringInput
+  def input_html_classes
+    super.push("datetimepicker")
+  end
+
+  def input_type
+    :string
+  end
+
+  def input_html_options
+    super.tap do |opts|
+      opts[:data] ||= {}
+      opts[:data].merge! datepicker_options
+      opts[:value] ||= value
+    end
+  end
+
+  def value
+    val = object.send(attribute_name)
+    return DateTime.new(val.year, val.month, val.day, val.hour, val.min).strftime("%Y-%m-%d %H:%M") if val.is_a?(Time)
+    return val if val.nil?
+    val.to_s
+  end
+
+  private
+    def datepicker_options
+      options = self.options.fetch(:datepicker_options, {})
+      options = Hash[options.map{ |k, v| [k.to_s.camelcase(:lower), v] }]
+      { datepicker_options: options }
+    end
+end
+
+```
+
+### Formtastic Integration
+
+```ruby
+# /app/inputs/datetimepicker_input.rb
+
+class DatetimepickerInput < ::Formtastic::Inputs::StringInput
+  def input_html_options
+    super.tap do |options|
+      options[:class] = [options[:class], "datetimepicker"].compact.join(' ')
+      options[:data] ||= {}
+      options[:data].merge! datepicker_options
+      options[:value] ||= value
+    end
+  end
+
+  def value
+    val = object.send(method)
+    return DateTime.new(val.year, val.month, val.day, val.hour, val.min).strftime("%Y-%m-%d %H:%M") if val.is_a?(Time)
+    return val if val.nil?
+    val.to_s
+  end
+
+  private
+    def datepicker_options
+      options = self.options.fetch(:datepicker_options, {})
+      options = Hash[options.map{ |k, v| [k.to_s.camelcase(:lower), v] }]
+      { datepicker_options: options }
+    end
+end
+
+```
 
 ## Versioning
 
 This gem will attempt to maintain the same version as the `datetimepicker` library.