37 lines
1.5 KiB
Ruby
37 lines
1.5 KiB
Ruby
# frozen_string_literal: true
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class AccountSuggestions::FriendsOfFriendsSource < AccountSuggestions::Source
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def get(account, limit: 10)
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Account.find_by_sql([<<~SQL.squish, { id: account.id, limit: limit }]).map { |row| [row.id, key] }
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WITH first_degree AS (
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SELECT target_account_id
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FROM follows
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JOIN accounts AS target_accounts ON follows.target_account_id = target_accounts.id
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WHERE account_id = :id
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AND NOT target_accounts.hide_collections
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)
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SELECT accounts.id, COUNT(*) AS frequency
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FROM accounts
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JOIN follows ON follows.target_account_id = accounts.id
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JOIN account_stats ON account_stats.account_id = accounts.id
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LEFT OUTER JOIN follow_recommendation_mutes ON follow_recommendation_mutes.target_account_id = accounts.id AND follow_recommendation_mutes.account_id = :id
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WHERE follows.account_id IN (SELECT * FROM first_degree)
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AND NOT EXISTS (SELECT 1 FROM follows f WHERE f.target_account_id = follows.target_account_id AND f.account_id = :id)
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AND follows.target_account_id <> :id
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AND accounts.discoverable
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AND accounts.suspended_at IS NULL
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AND accounts.silenced_at IS NULL
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AND accounts.moved_to_account_id IS NULL
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AND follow_recommendation_mutes.target_account_id IS NULL
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GROUP BY accounts.id, account_stats.id
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ORDER BY frequency DESC, account_stats.followers_count ASC
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LIMIT :limit
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SQL
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end
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private
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def key
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:friends_of_friends
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end
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end
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