Overloading paginate method

I have run into some problems with the Rails paginate helper. Given a
relatively complex pagination search including joins etc, the
@item_count is set incorrectly. This is because the
paginator_and_collection_for uses model.count with does not accept a
SELECT DISTINCT query.

I have made a small change to paginator_and_collection_for to allow a
custom query for counting. The new version is:

def paginator_and_collection_for(collection_id, options) #:nodoc:
  klass = options[:class_name].constantize
  page  = params[options[:parameter]]
  unless options[:custom_search].nil?
    count = eval(options[:custom_search])
  else
    count = count_collection_for_pagination(klass, options)
  end
  paginator = Paginator.new(self, count, options[:per_page], page)
  collection = find_collection_for_pagination(klass, options,

paginator)

  return paginator, collection
end

I have also changed the DEFAULT_OPTIONS to support the :custom_search
option.

My question is, how to make this change within my app, to overload the
existing rails implementation. I understand that it is very bad form to
modify the rails source on my machine, so am looking for a tidy
alternative.

Does anyone have examples of overloading methods of modules such as
Pagination?

Kim

Hi Kim

Take a lot at activescaffold where pagination is taken of pretty
nicely.

On Oct 18, 10:22 am, Kim C. [email protected]

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