Ferret talk - Dec 2005 - How to get the count of matching documents

I''m trying to generate a rails pagination helper for some ferret
search results, and I need to know how many total matches there are to
my search query.  I don''t see an obvious way of finding this.  Any
help would be appreciated.

Thanks,
Carl Youngblood

Hi Carl,

This is easy. If you use the search method (not search_each) a TopDocs
object is returned which has the attribute total hits. Or you can
continue to use the search_each method like this;

total_hits = index.search_each("query") {|doc, score| puts
"doc"}

Hope this helps,
Dave

On 12/2/05, Carl Youngblood <carl at youngbloods.org>
wrote:
> I''m trying to generate a rails pagination helper for some ferret
> search results, and I need to know how many total matches there are to
> my search query.  I don''t see an obvious way of finding this.  Any
> help would be appreciated.
>
> Thanks,
> Carl Youngblood
>
> _______________________________________________
> Ferret-talk mailing list
> Ferret-talk at rubyforge.org
> http://rubyforge.org/mailman/listinfo/ferret-talk
>

No doubt I just needed to scour the documentation more thoroughly, but
thanks for the help.

Carl

On 12/1/05, David Balmain <dbalmain.ml at gmail.com>
wrote:
> Hi Carl,
>
> This is easy. If you use the search method (not search_each) a TopDocs
> object is returned which has the attribute total hits. Or you can
> continue to use the search_each method like this;
>
> total_hits = index.search_each("query") {|doc, score| puts
"doc"}
>
> Hope this helps,
> Dave

What do you mean saying "more thoroughly". This is code from my
application
and it works great.

    page_num = @params[''page''] ?
@params[''page''].to_i : 1

    total_hits = index.search_each(query, :num_docs => PAGE_SIZE, :first_doc
=> PAGE_SIZE*(page_num-1)) do |doc_num, score|
      @documents << index[doc_num]
    end

    @document_pages = Paginator.new self, total_hits, PAGE_SIZE, page_num

Is it makes sense to put it to "HowTos" page??


On 12/2/05, Carl Youngblood <carl at youngbloods.org>
wrote:
>
> No doubt I just needed to scour the documentation more thoroughly, but
> thanks for the help.
>
> Carl
>
> On 12/1/05, David Balmain <dbalmain.ml at gmail.com> wrote:
> > Hi Carl,
> >
> > This is easy. If you use the search method (not search_each) a TopDocs
> > object is returned which has the attribute total hits. Or you can
> > continue to use the search_each method like this;
> >
> > total_hits = index.search_each("query") {|doc, score| puts
"doc"}
> >
> > Hope this helps,
> > Dave
>
> _______________________________________________
> Ferret-talk mailing list
> Ferret-talk at rubyforge.org
> http://rubyforge.org/mailman/listinfo/ferret-talk
>


--
anatol (http://pomozov.info)
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On 12/2/05, Anatol Pomozov <anatol.pomozov at gmail.com>
wrote:
> What do you mean saying "more thoroughly". This is code from my
application
> and it works great.
>
>     page_num = @params[''page''] ?
@params[''page''].to_i : 1
>
>     total_hits = index.search_each(query, :num_docs => PAGE_SIZE,
:first_doc
> => PAGE_SIZE*(page_num-1)) do |doc_num, score|
>       @documents << index[doc_num]
>     end
>
>     @document_pages = Paginator.new self, total_hits, PAGE_SIZE, page_num
>
> Is it makes sense to put it to "HowTos" page??
Very good idea. I''ve had a few people ask me about this. I wish I had
time. I''m leaving the Wiki up to the users at this stage. When I
finish cFerret I''ll have more time.

Dave