Adding Rails-related monkeypatches file, which isn't required by defa…

…ult. Contains fixes for Rails routing and Rails form error compatibility.

lib/couchrest/support/rails.rb

@@ -0,0 +1,35 @@
+# This file contains various hacks for Rails compatibility.
+# To use, just require in environment.rb, like so:
+#
+#   require 'couchrest/support/rails'
+
+class Hash
+  # Hack so that CouchRest::Document, which descends from Hash,
+  # doesn't appear to Rails routing as a Hash of options
+  def self.===(other)
+    return false if other.is_a?(CouchRest::Document)
+    super
+  end
+end
+
+
+CouchRest::Document.class_eval do
+  # Hack so that CouchRest::Document, which descends from Hash,
+  # doesn't appear to Rails routing as a Hash of options
+  def is_a?(o)
+    return false if o == Hash
+    super
+  end
+  alias_method :kind_of?, :is_a?
+end
+
+
+require Pathname.new(File.dirname(__FILE__)).join('..', 'validation', 'validation_errors')
+
+CouchRest::Validation::ValidationErrors.class_eval do
+  # Returns the total number of errors added. Two errors added to the same attribute will be counted as such.
+  # This method is called by error_messages_for
+  def count
+    errors.values.inject(0) { |error_count, errors_for_attribute| error_count + errors_for_attribute.size }
+  end
+end