Highlight erroneous fields by adding a class to them

[rails.git] / config / initializers / field_error.rb

diff --git a/config/initializers/field_error.rb b/config/initializers/field_error.rb
new file mode 100644 (file)
index 0000000..41f2c2d
--- /dev/null
+++ b/config/initializers/field_error.rb
@@ -0,0 +1,9 @@
+ActionView::Base.field_error_proc = Proc.new do |html_tag, instance|
+  class_attr_index = html_tag.index 'class="'
+
+  if class_attr_index
+    html_tag.insert class_attr_index+7, 'field_with_errors '
+  else
+    html_tag.insert html_tag.index(/\/?>/), ' class="field_with_errors"'
+  end
+end