Create Related Content Scores

app/models/related_content.rb

@@ -1,10 +1,11 @@
 class RelatedContent < ActiveRecord::Base
-  RELATED_CONTENTS_REPORT_THRESHOLD = Setting['related_contents_report_threshold'].to_f
+  RELATED_CONTENT_SCORE_THRESHOLD = Setting['related_content_score_threshold'].to_f
   RELATIONABLE_MODELS = %w{proposals debates}.freeze
 
   belongs_to :parent_relationable, polymorphic: true, touch: true
   belongs_to :child_relationable, polymorphic: true, touch: true
   has_one :opposite_related_content, class_name: 'RelatedContent', foreign_key: :related_content_id
+  has_many :related_content_scores
 
   validates :parent_relationable_id, presence: true
   validates :parent_relationable_type, presence: true
@@ -14,7 +15,7 @@ class RelatedContent < ActiveRecord::Base
 
   after_create :create_opposite_related_content, unless: proc { opposite_related_content.present? }
 
-  scope :not_hidden, -> { where('positive_score - negative_score / LEAST(nullif(positive_score + negative_score, 0), 1) >= ?', RELATED_CONTENTS_REPORT_THRESHOLD) }
+  scope :not_hidden, -> { where('positive_score - negative_score / LEAST(nullif(positive_score + negative_score, 0), 1) >= ?', RELATED_CONTENT_SCORE_THRESHOLD) }
 
   private
 

app/models/related_content_score.rb

@@ -0,0 +1,6 @@
+class RelatedContentScore < ActiveRecord::Base
+  belongs_to :related_content, touch: true, counter_cache: :related_content_scores_count
+
+  validates :user_id, presence: true
+  validates :related_content_id, presence: true
+end

db/dev_seeds.rb

@@ -67,7 +67,7 @@ section "Creating Settings" do
   Setting.create(key: 'map_latitude', value: 51.48)
   Setting.create(key: 'map_longitude', value: 0.0)
   Setting.create(key: 'map_zoom', value: 10)
-  Setting.create(key: 'related_contents_report_threshold', value: -0.3)
+  Setting.create(key: 'related_content_score_threshold', value: -0.3)
 end
 
 section "Creating Geozones" do

db/migrate/20171219184209_create_related_content_scores.rb

@@ -0,0 +1,11 @@
+class CreateRelatedContentScores < ActiveRecord::Migration
+  def change
+    create_table :related_content_scores do |t|
+      t.references :user, index: true, foreign_key: true
+      t.references :related_content, index: true, foreign_key: true
+      t.integer :value
+    end
+
+    add_index :related_content_scores, [:user_id, :related_content_id], name: "unique_user_related_content_scoring", unique: true, using: :btree
+  end
+end

db/migrate/20171220002802_add_related_content_scores_counter_to_related_content.rb

@@ -0,0 +1,5 @@
+class AddRelatedContentScoresCounterToRelatedContent < ActiveRecord::Migration
+  def change
+    add_column :related_contents, :related_content_scores_count, :integer, default: 0
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20171219111046) do
+ActiveRecord::Schema.define(version: 20171220002802) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -854,6 +854,16 @@ ActiveRecord::Schema.define(version: 20171219111046) do
   add_index "proposals", ["title"], name: "index_proposals_on_title", using: :btree
   add_index "proposals", ["tsv"], name: "index_proposals_on_tsv", using: :gin
 
+  create_table "related_content_scores", force: :cascade do |t|
+    t.integer "user_id"
+    t.integer "related_content_id"
+    t.integer "value"
+  end
+
+  add_index "related_content_scores", ["related_content_id"], name: "index_related_content_scores_on_related_content_id", using: :btree
+  add_index "related_content_scores", ["user_id", "related_content_id"], name: "unique_user_related_content_scoring", unique: true, using: :btree
+  add_index "related_content_scores", ["user_id"], name: "index_related_content_scores_on_user_id", using: :btree
+
   create_table "related_contents", force: :cascade do |t|
     t.integer  "parent_relationable_id"
     t.string   "parent_relationable_type"
@@ -862,6 +872,7 @@ ActiveRecord::Schema.define(version: 20171219111046) do
     t.integer  "related_content_id"
     t.datetime "created_at"
     t.datetime "updated_at"
+    t.integer  "related_content_scores_count", default: 0
   end
 
   add_index "related_contents", ["child_relationable_type", "child_relationable_id"], name: "index_related_contents_on_child_relationable", using: :btree
@@ -1188,6 +1199,8 @@ ActiveRecord::Schema.define(version: 20171219111046) do
   add_foreign_key "poll_recounts", "poll_officer_assignments", column: "officer_assignment_id"
   add_foreign_key "poll_voters", "polls"
   add_foreign_key "proposals", "communities"
+  add_foreign_key "related_content_scores", "related_contents"
+  add_foreign_key "related_content_scores", "users"
   add_foreign_key "users", "geozones"
   add_foreign_key "valuators", "users"
 end

db/seeds.rb

@@ -120,4 +120,4 @@ Setting['map_longitude'] = 0.0
 Setting['map_zoom'] = 10
 
 # Related content
-Setting['related_contents_report_threshold'] = -0.3
+Setting['related_content_score_threshold'] = -0.3