Ferret talk - Jun 2007 - Count_by_content ??

Is there a count_by_content alternative to the find_by_content action?

This is because I''m wanting to do the following in my pagination
method:

def list
    # step 1: set the variables you''ll need
    page = (params[:page] ||= 1).to_i
    items_per_page = 20
    offset = (page - 1) * items_per_page

    # step 2: instead of performing a find, just get a count
    item_count = Item.count_with_some_custom_method()

    # step 3: create a Paginator, the second argument has to be the
number of ALL items on all pages
    @item_pages = Paginator.new(self, item_count, items_per_page, page)

    # step 4: only find the requested subset of @items
    @items = Item.find_with_some_custom_method(items_per_page, offset)
end

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On Wed, Jun 20, 2007 at 06:19:42PM +0200, Richard wrote:
> Is there a count_by_content alternative to the find_by_content action?
there is a method total_hits you can call, but this is not really
necessary. just use find_by_contents with the :limit and :offset
options and call total_hits on the result returned to find out the total
number of results.

Jens
> 
> This is because I''m wanting to do the following in my pagination
method:
> 
> def list
>     # step 1: set the variables you''ll need
>     page = (params[:page] ||= 1).to_i
>     items_per_page = 20
>     offset = (page - 1) * items_per_page
> 
>     # step 2: instead of performing a find, just get a count
>     item_count = Item.count_with_some_custom_method()
> 
>     # step 3: create a Paginator, the second argument has to be the
> number of ALL items on all pages
>     @item_pages = Paginator.new(self, item_count, items_per_page, page)
> 
>     # step 4: only find the requested subset of @items
>     @items = Item.find_with_some_custom_method(items_per_page, offset)
> end
> 
> -- 
> Posted via http://www.ruby-forum.com/.
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Jens Kr?mer
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