From e7a0f77f8b3eba2351df4645dba2ae10e24358d3 Mon Sep 17 00:00:00 2001
From: Mateus Rambo Strey <mars11@inf.ufpr.br>
Date: Tue, 27 Oct 2015 10:09:22 -0200
Subject: [PATCH] add weights to learning objects score
---
.../orient_db/learning_object_repository.rb | 14 ++++++++++++++
app/workers/score_calculator_worker.rb | 9 +++++----
2 files changed, 19 insertions(+), 4 deletions(-)
diff --git a/app/repositories/orient_db/learning_object_repository.rb b/app/repositories/orient_db/learning_object_repository.rb
index a1c40c5a..718302ec 100644
--- a/app/repositories/orient_db/learning_object_repository.rb
+++ b/app/repositories/orient_db/learning_object_repository.rb
@@ -245,6 +245,20 @@ module OrientDb
get_in_edges_count "Views", learning_object.id
end
+ def max_likes
+ Rails.cache.fetch('max_likes', expires_in: 6.hours) do
+ max = connection.command 'SELECT max(in("Likes").size()) FROM LearningObject'
+ max["result"][0]["max"]
+ end
+ end
+
+ def max_views
+ Rails.cache.fetch('max_views', expires_in: 6.hours) do
+ max = connection.command 'SELECT max(in("Views").size()) FROM LearningObject'
+ max["result"][0]["max"]
+ end
+ end
+
private
def accepted_properties
diff --git a/app/workers/score_calculator_worker.rb b/app/workers/score_calculator_worker.rb
index c983bb87..7c12e742 100644
--- a/app/workers/score_calculator_worker.rb
+++ b/app/workers/score_calculator_worker.rb
@@ -4,24 +4,25 @@ class ScoreCalculatorWorker
include RepositoriesProxy
def perform(rid)
+ weights = {"thumbnail": 40, "likes": 20, "views": 10, "description": 30}
object = learning_object_repository.find(rid)
score = 0
# 40 points if it has thumbnail
- score += 40 unless object.thumbnail.empty?
+ score += weights[:thumbnail] unless object.thumbnail.empty?
# 1 point per like
likes = learning_object_repository.count_likes(object)
- score += (likes * 1) unless likes < 1
+ score += (likes / learning_object_repository.max_likes)*weights[:likes] unless likes < 1
# 1 point per view
views = learning_object_repository.count_views(object)
- score += (views * 1) unless views < 1
+ score += (views / learning_object_repository.max_views)*weights[:views] unless views < 1
# 30 points if it has description
- score += 30 unless object.decription.empty?
+ score += weights[:description] unless object.decription.empty?
learning_object_repository.update_property(object, 'score', score)
end
--
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