List most likes records with active record in rails

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    @most_likes_posts = Post.joins("LEFT JOIN likes on likes.likeable_id = posts.id and likes.likeable_type = 'Post' and likes.liker_type = 'User'").group('posts.id').select('posts.*','count(likes.likeable_id) as likes_count').select('posts.*','count(likes.likeable_id) as likes_count').sort_by(&:likes_count).last(20)




@lessons = Lesson.joins('INNER JOIN views ON lessons.id = views.viewable_id')
                    .joins('LEFT OUTER JOIN likes ON lessons.id = likes.likeable_id')
                    .select('lessons.*, sum(views.count) AS views_sum, count(likes.likeable_id) AS likes_count')
                    .group('lessons.id')
                    .order('sum(views.count) DESC').paginate(page: params[:page], per_page: 40)


List lessons which has at least 1 post:
@lessons = Lesson.joins('INNER JOIN posts ON lessons.id = posts.lesson_id')
                      .joins('left outer JOIN likes ON lessons.id = likes.likeable_id')
                      .select('lessons.*, count(likes.likeable_id) AS likes_count, count(posts.lesson_id) AS posts_count')
                      .group('lessons.id')
                      .having('count(posts.id) > 0')

                      .order('today_views DESC').paginate(page: params[:page], per_page: 100)
Experienced Ruby on Rails and Web Developer having 11+ years experience in Ruby & Ruby on Rails framework, TTD, Rspec. Expert on Git, SVN , Git Hook, Bitbucket. I use MySQL, MongoDB , PostgreSQL & Sqlite for Database Management. In front-end development I use HTML5 / HAML, CSS3 / SCSS, javascript / coffeescript. I also know about the deploy the applications on VPS Server i.e AWS EC2, Heroku, Ditital Ocean, Hostgator, Site5, BlueHost, AWS Load Balancing, Elastic Beanstalk, AWS S3 e.t.c ☆ Frameworks ☆ Ruby on Rails, Sinatra ☆ Database ☆ - PostgreSQL, MySQL, SQLite, - MongoDB, Amazon DynamoDB,AWS RDS. ☆ Front end Techniques ☆ - ReactJS, Angular js, Node js, Javascript, JQuery, HTML, CSS - Twitter Bootstrap, Coffeescript. Why hire me? * Master degree in Computer Science * 6 years professional experiences and 10+ projects completed * Available all day long, 7 days/24 hours * Good communication skills with fluent English * Self-motivated, fast-learner and "I can do" mind * Quality insurance and fast delivery

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