Sunspot: boost elements when match a multiple values field - ruby-on-rails

Question

I have an object Foo which has many objects Bee.
class Foo
has_many :bees
I index my object A with Sunspot SOLR like this.
searchable do
text :title, boost: 5
text :content, boost: 2
integer :bee_ids, multiple: true
...
end
to keep track of Bee ids related to my Foo object.
Now I have a User that performs searches on Foos objects. The User has many Bees too.
class User
has_many :bees
...
end
When I search Foos objects I would like to boost objects which have bees that matches User's bees.
Foo.search do
fulltext query
any_of do
...
with(:bee_ids, #user.bees.pluck(:id))
end
end
I want to give priorities to objects that matches user's interests. Any idea?

Answer 1

Well. I found a solution for the problem above.
You need to use bq parameter to do that and give a boost to that condition.
I added
adjust_solr_params do |params|
params[:bq] = " bee_ids_im:(#{#user.bees.pluck(:id).join(' OR ')})^20"
end
and I give a boost to the above condition of 20 times.
Actually that the solution to the more generic problem of giving boost to specific conditions in the query.
Sunspot support boost queries with boost command.
So I changed my query with:
Foo.search do
fulltext query do
boost(20.0) do
with(:bee_ids, #user.bees.pluck(:id))
end
end
any_of do
...
with(:bee_ids, #user.bees.pluck(:id))
end
end
and I obtained the same result.
Hope this can help someone else.