> Looks as though attributes from many to many relationships are not being
> added to the index when a record is amended.
I have the following relationship between documents and topics:
class Document < ActiveRecord::Base
acts_as_ferret :additional_fields => [:topic_titles]
has_many :document_topics, :dependent => true
has_many :topics, :through => :document_topics
def topic_titles
topics.collect { |topic| topic.title }.join ' '
end
end
class Topic < ActiveRecord::Base
has_many :document_topics, :dependent => true
has_many :documents, :through => :document_topics
end
The update action in documents_controller.rb looks like this:
def update
params[:document][:topic_ids] ||= []
@document = Document.find(params[:id])
@topics = (params[:topics] or []).collect { |item| item.to_i }
@document.attributes = params[:document]
@document.topic_ids = @topics
@document.save
if @document.update_attributes(params[:document])
flash[:notice] = 'Document was successfully updated.'
redirect_to :action => 'show', :id => @document
else
render :action => 'edit'
end
end
I suspect there is something here which means the document has no topics
when acts_as_ferret attempts to add the topic_titles to the index.
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