29 lines
1.3 KiB
Ruby
29 lines
1.3 KiB
Ruby
class ParticipationCounter < ActiveRecord::Migration
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def up
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add_column :participations, :count, :int, null: false, default: 1
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posts_count = Post.select("COUNT(posts.id)")
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.where("posts.id = participations.target_id")
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.where("posts.author_id = participations.author_id")
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.to_sql
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likes_count = Like.select("COUNT(likes.id)")
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.where("likes.target_id = participations.target_id")
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.where("likes.author_id = participations.author_id")
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.to_sql
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comments_count = Comment.select("COUNT(comments.id)")
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.where("comments.commentable_id = participations.target_id")
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.where("comments.author_id = participations.author_id")
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.to_sql
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polls_count = PollParticipation.select("COUNT(*)")
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.where("poll_participations.author_id = participations.author_id")
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.joins(:poll)
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.where("polls.status_message_id = participations.target_id")
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.to_sql
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Participation.update_all("count = (#{posts_count}) + (#{likes_count}) + (#{comments_count}) + (#{polls_count})")
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Participation.where(count: 0).delete_all
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end
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def down
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remove_column :participations, :count
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end
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end
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