Hi,
I''ve been having a problem getting highlighting to work with aaf.
I have a class defined as follows such:
class Link < ActiveRecord::Base
acts_as_ferret :fields => { :description => { :store => :yes } }
end
I get back the correct results when I do Link.find_by_contents, however,
I''d like to highlight them.
If I do something like iterate through the list of results and call
result.highlight("myquery", :field => :description), but this is
returning nil for each result. How is this possible if these results are
correctly returned because "myquery" is a token in their description?
Am
I incorrectly using the api?
Thanks for the help,
Ben
--
Posted via http://www.ruby-forum.com/.
On Fri, Mar 09, 2007 at 05:06:08AM +0100, Ben wrote:> Hi, > > I''ve been having a problem getting highlighting to work with aaf. > > I have a class defined as follows such: > > class Link < ActiveRecord::Base > acts_as_ferret :fields => { :description => { :store => :yes } } > end > > I get back the correct results when I do Link.find_by_contents, however, > I''d like to highlight them. > > If I do something like iterate through the list of results and call > result.highlight("myquery", :field => :description), but this is > returning nil for each result. How is this possible if these results are > correctly returned because "myquery" is a token in their description? Am > I incorrectly using the api?your usage of the api is perfectly right. I''m not sure what''s going on there, and can''t reproduce this here. To help debug this a bit, could you please try this in the console: results = Link.find_by_contents(query) result = results.first result.highlight(query, :field => :description) # returns nil doc_num = result.document_number # if you are on aaf trunk: Link.aaf_index.ferret_index.highlight(query, doc_num, :field => :description) # if on aaf stable: Link.ferret_index.highlight(query, doc_num, :field => :description) this would directly use ferret''s highlight method. Btw, what version of aaf do you use? Jens -- Jens Kr?mer webit! Gesellschaft f?r neue Medien mbH Schnorrstra?e 76 | 01069 Dresden Telefon +49 351 46766-0 | Telefax +49 351 46766-66 kraemer at webit.de | www.webit.de Amtsgericht Dresden | HRB 15422 GF Sven Haubold, Hagen Malessa
Jens Kraemer wrote: ...> results = Link.find_by_contents(query) > result = results.first > result.highlight(query, :field => :description) # returns nil > > doc_num = result.document_number > > # if you are on aaf trunk: > Link.aaf_index.ferret_index.highlight(query, doc_num, :field => > :description) > # if on aaf stable: > Link.ferret_index.highlight(query, doc_num, :field => :description) > > > this would directly use ferret''s highlight method. Btw, what version of > aaf do you use? >... Hi all, same Problem here...using gem version 0.11.3. I tried the above but still ''nil''. How can I find out if :store is set to :yes? Regards Peter -- Posted via http://www.ruby-forum.com/.
On Thu, Mar 29, 2007 at 01:07:00PM +0200, P. Schrammel wrote:> Jens Kraemer wrote: > ... > > results = Link.find_by_contents(query) > > result = results.first > > result.highlight(query, :field => :description) # returns nil > > > > doc_num = result.document_number > > > > # if you are on aaf trunk: > > Link.aaf_index.ferret_index.highlight(query, doc_num, :field => > > :description) > > # if on aaf stable: > > Link.ferret_index.highlight(query, doc_num, :field => :description) > > > > > > this would directly use ferret''s highlight method. Btw, what version of > > aaf do you use? > > > ... > Hi all, > same Problem here...using gem version 0.11.3. I tried the above but > still ''nil''. > How can I find out if :store is set to :yes?retrieve a ferret document from the index and try to access the field in question: doc = index[doc_num] puts doc[:field] if it gives the contents of the field, the field is :store => :yes, if nil, it isn''t. Jens -- Jens Kr?mer webit! Gesellschaft f?r neue Medien mbH Schnorrstra?e 76 | 01069 Dresden Telefon +49 351 46766-0 | Telefax +49 351 46766-66 kraemer at webit.de | www.webit.de Amtsgericht Dresden | HRB 15422 GF Sven Haubold, Hagen Malessa
Now it works...don''t ask why. I''ll try to explain what I did,
perhaps
you''ll find the error:
Created a rails model:
class Article < ActiveRecord::Base
acts_as_ferret :fields => [:normalized_text],
:analyzer => HTMLAnalyzer.new
end
-filled in the data. Found docs that I should use :store
-called Article.delete_all on the rails console
-rewrote article.rb :
class Article < ActiveRecord::Base
acts_as_ferret :fields => { :normalized_text => {:store => :yes }},
:analyzer => HTMLAnalyzer.new
end
-fill in the data (highlight didn''t work)
-did Article.delete_all again
-rm RAILS_ROOT/index/article/*
-fill in the data
-highlight works
Thanks
Peter
--
Posted via http://www.ruby-forum.com/.
On Thu, Mar 29, 2007 at 02:59:04PM +0200, P. Schrammel wrote:> Now it works...don''t ask why. I''ll try to explain what I did, perhaps > you''ll find the error:yeah, delete_all is evil because it only does the sql delete without calling the Rails callback methods for the deleted records - so there''s no way for aaf to remove the old entries from the index. destroy_all would have worked. By deleting the index directory you forced aaf to rebuild the index, which then used the new aaf-options. Long story short: Calling Article.rebuild_index after changing the aaf options would have worked, too :-) Jens> > Created a rails model: > > class Article < ActiveRecord::Base > acts_as_ferret :fields => [:normalized_text], > :analyzer => HTMLAnalyzer.new > end > > -filled in the data. Found docs that I should use :store > -called Article.delete_all on the rails console > -rewrote article.rb : > > class Article < ActiveRecord::Base > acts_as_ferret :fields => { :normalized_text => {:store => :yes }}, > :analyzer => HTMLAnalyzer.new > end > > -fill in the data (highlight didn''t work) > -did Article.delete_all again > -rm RAILS_ROOT/index/article/* > -fill in the data > -highlight works > > Thanks > Peter > > -- > Posted via http://www.ruby-forum.com/. > _______________________________________________ > Ferret-talk mailing list > Ferret-talk at rubyforge.org > http://rubyforge.org/mailman/listinfo/ferret-talk >-- Jens Kr?mer webit! Gesellschaft f?r neue Medien mbH Schnorrstra?e 76 | 01069 Dresden Telefon +49 351 46766-0 | Telefax +49 351 46766-66 kraemer at webit.de | www.webit.de Amtsgericht Dresden | HRB 15422 GF Sven Haubold, Hagen Malessa