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Commit aeeb54f3cff07d475314df53a2d38528d2a4358e

Authored by Victor Costa
1 parent d0472735
Exists in theme-brasil-digital-from-staging and in 9 other branches angular_poc, api-article-archived, backup-7-jan-2016, captcha_serpro_plugin, login-captcha, production, resend_confirmation_email, staging, staging_rails3

Add counter cache for article followers

Showing 2 changed files with 27 additions and 1 deletions   Show diff stats
app/models/article_follower.rb
  Diff comments   View file @aeeb54f
1 class ArticleFollower < ActiveRecord::Base 1 class ArticleFollower < ActiveRecord::Base
  2 +
  3 + extend CacheCounterHelper
  4 +
2 attr_accessible :article_id, :person_id, :since 5 attr_accessible :article_id, :person_id, :since
3 - belongs_to :article 6 + belongs_to :article, :counter_cache => :followers_count
4 belongs_to :person 7 belongs_to :person
  8 +
  9 + after_create do |article_follower|
  10 + ArticleFollower.update_cache_counter(:followers_count, article_follower.article, 1)
  11 + end
  12 +
  13 + after_destroy do |article_follower|
  14 + ArticleFollower.update_cache_counter(:followers_count, article_follower.article, -1)
  15 + end
5 end 16 end
db/migrate/20150909091347_add_followers_count_to_article.rb 0 → 100644
  Diff comments   View file @aeeb54f
@@ -0,0 +1,15 @@ @@ -0,0 +1,15 @@
  1 +class AddFollowersCountToArticle < ActiveRecord::Migration
  2 +
  3 + def self.up
  4 + add_column :articles, :followers_count, :integer, :default => 0
  5 + add_column :article_versions, :followers_count, :integer
  6 +
  7 + execute "update articles set followers_count = (select count(*) from article_followers where article_followers.article_id = articles.id)"
  8 + end
  9 +
  10 + def self.down
  11 + remove_column :article_versions, :followers_count
  12 + remove_column :articles, :followers_count
  13 + end
  14 +
  15 +end