Refactor related content score methods to make them easier to follow

app/controllers/related_contents_controller.rb

@@ -18,18 +18,18 @@ class RelatedContentsController < ApplicationController
   end
 
   def score_positive
-    score(1)
+    score(:positive)
   end
 
   def score_negative
-    score(-1)
+    score(:negative)
   end
 
   private
 
-  def score(value)
+  def score(action)
     @related = RelatedContent.find_by(id: params[:id])
-    @related.score(value, current_user)
+    @related.send("score_#{action}", current_user)
 
     render template: 'relationable/_refresh_score_actions'
   end

app/models/related_content.rb

@@ -23,31 +23,38 @@ class RelatedContent < ActiveRecord::Base
   scope :not_hidden, -> { where('positive_score - negative_score / LEAST(nullif(positive_score + negative_score, 0), 1) >= ?', RELATED_CONTENT_SCORE_THRESHOLD) }
   scope :not_hidden, -> { where(hidden_at: nil) }
 
-  def score(value, user)
-    score_with_opposite(value, user)
-    hide_with_opposite if (related_content_scores.sum(:value) / self.related_content_scores_count) < RELATED_CONTENT_SCORE_THRESHOLD
+  def score_positive(user)
+    score(RelatedContentScore::SCORES[:POSITIVE], user)
+  end
+
+  def score_negative(user)
+    score(RelatedContentScore::SCORES[:NEGATIVE], user)
   end
 
   def scored_by_user?(user)
-    related_content_scores.where(user: user).count > 0
+    related_content_scores.exists?(user: user)
   end
 
-
   private
 
-  def hide_with_opposite
-    self.hide
-    opposite_related_content.hide
-  end
-
   def create_opposite_related_content
     related_content = RelatedContent.create!(opposite_related_content: self, parent_relationable: child_relationable,
                                              child_relationable: parent_relationable, author: author)
     self.opposite_related_content = related_content
   end
 
+  def score(value, user)
+    score_with_opposite(value, user)
+    hide_with_opposite if (related_content_scores.sum(:value) / related_content_scores_count) < RELATED_CONTENT_SCORE_THRESHOLD
+  end
+
+  def hide_with_opposite
+    hide
+    opposite_related_content.hide
+  end
+
   def create_author_score
-    score(1, author)
+    score_positive(author)
   end
 
   def score_with_opposite(value, user)

app/models/related_content_score.rb

@@ -1,4 +1,9 @@
 class RelatedContentScore < ActiveRecord::Base
+  SCORES = {
+    POSITIVE: 1,
+    NEGATIVE: -1
+  }.freeze
+
   belongs_to :related_content, touch: true, counter_cache: :related_content_scores_count
   belongs_to :user