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Refactor Status#ancestors/descendants (#3092)

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alpaca-tc 2017-05-17 22:38:16 +09:00 committed by Eugen Rochko
parent b397f69633
commit 59ceeae8ea
1 changed files with 12 additions and 12 deletions
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24
app/models/status.rb
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@ -122,21 +122,13 @@ class Status < ApplicationRecord
end
def ancestors(account = nil)
ids = Rails.cache.fetch("ancestors:#{id}") { (Status.find_by_sql(['WITH RECURSIVE search_tree(id, in_reply_to_id, path) AS (SELECT id, in_reply_to_id, ARRAY[id] FROM statuses WHERE id = ? UNION ALL SELECT statuses.id, statuses.in_reply_to_id, path || statuses.id FROM search_tree JOIN statuses ON statuses.id = search_tree.in_reply_to_id WHERE NOT statuses.id = ANY(path)) SELECT id FROM search_tree ORDER BY path DESC', id]) - [self]).pluck(:id) }
statuses = Status.where(id: ids).group_by(&:id)
results = ids.map { |id| statuses[id]&.first }.compact
results = results.reject { |status| filter_from_context?(status, account) }
results
ids = Rails.cache.fetch("ancestors:#{id}") { (Status.find_by_sql(['WITH RECURSIVE search_tree(id, in_reply_to_id, path) AS (SELECT id, in_reply_to_id, ARRAY[id] FROM statuses WHERE id = ? UNION ALL SELECT statuses.id, statuses.in_reply_to_id, path || statuses.id FROM search_tree JOIN statuses ON statuses.id = search_tree.in_reply_to_id WHERE NOT statuses.id = ANY(path)) SELECT id FROM search_tree ORDER BY path DESC', id]) - [self]).pluck(:id) }
find_statuses_from_tree_path(ids, account)
end
def descendants(account = nil)
ids = (Status.find_by_sql(['WITH RECURSIVE search_tree(id, path) AS (SELECT id, ARRAY[id] FROM statuses WHERE id = ? UNION ALL SELECT statuses.id, path || statuses.id FROM search_tree JOIN statuses ON statuses.in_reply_to_id = search_tree.id WHERE NOT statuses.id = ANY(path)) SELECT id FROM search_tree ORDER BY path', id]) - [self]).pluck(:id)
statuses = Status.where(id: ids).group_by(&:id)
results = ids.map { |id| statuses[id].first }
results = results.reject { |status| filter_from_context?(status, account) }
results
ids = (Status.find_by_sql(['WITH RECURSIVE search_tree(id, path) AS (SELECT id, ARRAY[id] FROM statuses WHERE id = ? UNION ALL SELECT statuses.id, path || statuses.id FROM search_tree JOIN statuses ON statuses.in_reply_to_id = search_tree.id WHERE NOT statuses.id = ANY(path)) SELECT id FROM search_tree ORDER BY path', id]) - [self]).pluck(:id)
find_statuses_from_tree_path(ids, account)
end
def non_sensitive_with_media?
@ -291,6 +283,14 @@ class Status < ApplicationRecord
end
end
def find_statuses_from_tree_path(ids, account)
statuses = Status.where(id: ids).to_a
statuses.reject! { |status| filter_from_context?(status, account) }
# Order ancestors/descendants by tree path
statuses.sort_by! { |status| ids.index(status.id) }
end
def filter_from_context?(status, account)
account&.blocking?(status.account_id) || account&.muting?(status.account_id) || (status.account.silenced? && !account&.following?(status.account_id)) || !status.permitted?(account)
end