Added record_for helper

fixed the form_builder to work also on Ruby 1.9

lib/page_record/form_builder.rb

@@ -3,7 +3,7 @@ module PageRecord
   class FormBuilder < ActionView::Helpers::FormBuilder
     include PageRecord::Helpers
 
-    helpers = field_helpers + %w(time_zone_select date_select) - %w(hidden_field fields_for label)
+    helpers = field_helpers + [:time_zone_select, :date_select] - [:hidden_field, :fields_for, :label]
     helpers.each do |helper|
       define_method helper do |field, *args|
         options = args.find { |a| a.is_a?(Hash) } || {}

lib/page_record/helpers.rb

@@ -36,6 +36,35 @@ def form_record_for(type, var = nil)
       Hash["data-#{type}-id", id]
     end
 
+    ##
+    #
+    # returns a string containing the record-type and the id. The id is based on the type. For example when
+    # you specify `:team` as the type, it will search for the `type` instance variable.
+    #
+    # example:
+    #
+    # ```ruby
+    # <tr <%= record_for(:team)%>>
+    # ```
+    # this returns the follwing HTML:
+    #
+    # ```html
+    # <tr data-team-id="2">
+    # ```
+    #
+    # @param type Symbol identifying the type of record and the variable to use
+    # @param var the variable to use. This is optional
+    #
+    # @return   Hash
+    #
+    #
+    def record_for(record, type = nil)
+      unless type
+        type = record.class.to_s.downcase
+      end
+      "data-#{type}-id=#{record.id}"
+    end
+
     ##
     #
     # Returns a hash containing the attribute name. This can be used as html options in rails helpers