Just wanted to mention that you may also want to use find_all_by_id instead of find in the first solution. This prevents the problem when one of your records is deleted, but is still in the index. If you just use find it will throw a record not found exception, but if you use find_all_by_id it will return 9 out of the 10 records, even if one of the ids doesn’t exist. Thanks! Brian

thanks for this solution. I’m wondering if it’s possible to support hierarchies of associations too, like so:

:eagerly_load => [ :author, { :comments => { :author => :gravatar } }

That would be a great feature! So far I couldn’t get it to work.

Cheers from Berlin

Location.find(loc_id, :include => [:subcategories], :conditions => ["subcategories.location_id = ?", loc_id])

Thanks again for your help!

Cheri

If you’ve setup your ActiveRecord associations correctly where a Location has many subcategories and subcategories belong to Locations then it should work as you desire.

You might want to check out the has_finder plugin http://pivots.pivotallabs.com/users/nick/blog/articles/284-hasfinder-it-s-now-easier-than-ever-to-create-complex-re-usable-sql-queries You could use that to create more complex filters that are not done for you by ActiveRecord.

Let me know if that helps.

Thank your response! Do you know if there is a way to filter eagerly loaded models before they are loaded from the database? Say I want to find all Locations, but load only subcategories where subcategory.location_id = location.id. Do you know of a way to modify the statement below to do this?

@location = Location.find(loc_id, :include => [:subcategories])

Thanks

search = Ultrasphinx::Search.new(:query => “computer science”)
search.run

@courses = search.results
c1 = @courses.first
puts c1.professors

@course = Ultrasphinx::Search.new(:query => params[:course_id])

@professors = @course.professors?

I am trying to do something similar in my program but haven’t been able to access the associated fields (in your example, professors).

Any feedback would be appreciated!

Thanks!

Cheri

Cheri