32 lines
809 B
Ruby
32 lines
809 B
Ruby
class CategoryFeaturedUser < ActiveRecord::Base
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belongs_to :category
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belongs_to :user
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def self.max_featured_users
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5
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end
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def self.feature_users_in(category)
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# Figure out major posters in the category
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user_counts = exec_sql "
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SELECT p.user_id,
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COUNT(*) AS category_posts
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FROM posts AS p
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INNER JOIN topics AS ft ON ft.id = p.topic_id
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WHERE ft.category_id = :category_id
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GROUP BY p.user_id
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ORDER BY category_posts DESC
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LIMIT :max_featured_users
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", category_id: category.id, max_featured_users: max_featured_users
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transaction do
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CategoryFeaturedUser.delete_all ['category_id = ?', category.id]
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user_counts.each do |uc|
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create(category_id: category.id, user_id: uc['user_id'])
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end
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end
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end
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end
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