45 lines
860 B
Ruby
45 lines
860 B
Ruby
class UserSimilarityPresenter
|
|
attr_reader :report, :user_ids, :user_ids_with_scores, :not_ready
|
|
|
|
def initialize(report)
|
|
@report = report
|
|
fetch
|
|
end
|
|
|
|
def not_ready?
|
|
not_ready
|
|
end
|
|
|
|
def insufficient_data?
|
|
report.user.favorite_count < 200
|
|
end
|
|
|
|
def fetch
|
|
data = report.fetch_similar_user_ids
|
|
|
|
if data == "not ready"
|
|
@not_ready = true
|
|
else
|
|
@user_ids_with_scores = data.scan(/\S+/).in_groups_of(2)
|
|
end
|
|
end
|
|
|
|
def user_ids
|
|
user_ids_with_scores.map(&:first)
|
|
end
|
|
|
|
def scores
|
|
user_ids_with_scores.map(&:last)
|
|
end
|
|
|
|
def each_user(&block)
|
|
user_ids_with_scores.each do |user_id, score|
|
|
yield(User.find(user_id), 100 * score.to_f)
|
|
end
|
|
end
|
|
|
|
def each_favorite_for(user, &block)
|
|
user.favorites.limit(6).joins(:post).reorder("favorites.id desc").map(&:post).each(&block)
|
|
end
|
|
end
|