Baffled on forms and controllers!

Hi Chaps,

Having a little issue with my date filter business here, ive got a
date_filter (something i added to my form builder - which works by the
way) in my page, and I want to use it to filter my @articles.

in my page…

<% form_for @date_filter do |f| %>
<%= f.date_field :before %>
<%= f.date_field :after %>
<% end %>

in my ruby class…

class DateFilter
attr_accessor :before, :after

def initialize(attributes)
attributes.each { |k,v| self.send("#{k}=", v) }


and in my controller…

@date_filter =[:date_filter])
@articles = @results.find(:all,
:conditions => [ “created_at >= ? and
created_at <=?”, @filter.before, @filter.after],
:order => ‘created_at desc’, :page =>
{:size => 5, :current => params[:page]})

but I am receiving the following error…

ActionView::TemplateError (Called id for nil, which would mistakenly be
4 – if you really wanted the id of nil, use object_id) on line #24 of

Filter by: Date

22: Between

24: <% form_for @date_filter do |f| %>
25: <%= f.date_field :before %>
26: <%= f.date_field :after %>
27: <% end %>

Perhaps someone could help me to see whats going wrong…

Many thanks in advance

dont worry. fixed. replaced form_for with form_tag