Ferret talk - Dec 2006 - Index help on Polymorphic Associations

Hello,

I''m a newbie to aaf and rails and I hope anyone can help me with this.
I have the following Models:

class Project < ActiveRecord::Base
  acts_as_authorizable
  acts_as_audited :except => [:created_by, :updated_by ],
:user_class_name => ''AuthenticatedSystem'', :user_method
=>
''current_user''
  acts_as_ferret :fields => {:name => {:store => :yes},
                             :description => {:store => :yes},
                             :project_notes => {:store => :yes}}

  has_many :notes, :as => :notable
  .....

  def project_notes
    @index = Array.new
    for note in self.notes
      @index << note.details
    end
    @index.join(" ")
  end

  ..........

class Note < ActiveRecord::Base
  acts_as_authorizable
  acts_as_audited :except => [:created_by, :updated_by ],
:user_class_name => ''AuthenticatedSystem'', :user_method
=>
''current_user''
  acts_as_ferret :fields => {:details => {:store => :yes},
                             :notable_id => {},
                             :notable_type => {}}

  belongs_to :notable, :polymorphic => true

  ..........


But when i searched for a project with the note ''test'':

  @results = Project.find_by_contents(''test'')

it returns 0 results. I checked in the logs and it created the index:

Processing NotesController#create (for 127.0.0.1 at 2006-12-11 13:53:53)
[POST]
.......
creating doc for class: Note, id: 17
Adding field notable_id with value ''9'' to index
Adding field details with value ''test project 9'' to index
Adding field notable_type with value ''Project'' to index
.......

I also added this to the NotesController:

def create
  @note = Note.new(params[:note])
  @note.disable_ferret(:index_when_finished) do
    @successful = @note.save
  end

  .....
end

This doesn''t seem to work either, but after I have rebuild the index,
the note ''test'' now appears on the results. Did I miss
something here?


Any help is greatly appreciated.

Thanks much,
Jackie

-- 
Posted via http://www.ruby-forum.com/.

On Mon, Dec 11, 2006 at 07:57:40AM +0100, Jackie wrote:
> Hello,
> 
> I''m a newbie to aaf and rails and I hope anyone can help me with
this.
> I have the following Models:
> 
> class Project < ActiveRecord::Base
[..]
>   acts_as_ferret :fields => {:name => {:store => :yes},
>                              :description => {:store => :yes},
>                              :project_notes => {:store => :yes}}
> 
>   has_many :notes, :as => :notable
[..]
>   def project_notes
>     @index = Array.new
>     for note in self.notes
>       @index << note.details
>     end
>     @index.join(" ")
>   end
[..]
> class Note < ActiveRecord::Base
[..]
>   acts_as_ferret :fields => {:details => {:store => :yes},
>                              :notable_id => {},
>                              :notable_type => {}}
> 
>   belongs_to :notable, :polymorphic => true
> 
[..]
> 
> But when i searched for a project with the note ''test'':
> 
>   @results = Project.find_by_contents(''test'')
> 
> it returns 0 results. I checked in the logs and it created the index:
> 
> Processing NotesController#create (for 127.0.0.1 at 2006-12-11 13:53:53)
> [POST]
> .......
> creating doc for class: Note, id: 17
> Adding field notable_id with value ''9'' to index
> Adding field details with value ''test project 9'' to index
> Adding field notable_type with value ''Project'' to index
> .......
> 
[..]
> 
> This doesn''t seem to work either, but after I have rebuild the
index,
> the note ''test'' now appears on the results. Did I miss
something here?
yeah ;-)

as you can see from the log above, the index is updated correctly when
the note is saved. The problem is *which* index gets updated. It''s the
_notes_ index in this case. The index you are searching when doing 
Project.find_by_contents is the _project_ index.

To solve your problem, you should find the relevant project after
creating the note, and do a ferret_update with it, i.e.:

@note = Note.create params[:note]
@note.project.ferret_update

(this will work only if project_id is contained in params[:note])

if you don''t need to find a single note with ferret (with
Note.find_by_contents), you can skip the acts_as_ferret call in
note.rb.


Jens

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