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# frozen_string_literal: true
module AccountMerging
extend ActiveSupport::Concern
def merge_with!(other_account)
# Since it's the same remote resource, the remote resource likely
# already believes we are following/blocking, so it's safe to
# re-attribute the relationships too. However, during the presence
# of the index bug users could have *also* followed the reference
# account already, therefore mass update will not work and we need
# to check for (and skip past) uniqueness errors
owned_classes = [
Status, StatusPin, MediaAttachment, Poll, Report, Tombstone, Favourite,
Follow, FollowRequest, Block, Mute,
AccountModerationNote, AccountPin, AccountStat, ListAccount,
PollVote, Mention, AccountDeletionRequest, AccountNote, FollowRecommendationSuppression,
Appeal
]
owned_classes.each do |klass|
klass.where(account_id: other_account.id).find_each do |record|
record.update_attribute(:account_id, id)
rescue ActiveRecord::RecordNotUnique
next
end
end
target_classes = [
Follow, FollowRequest, Block, Mute, AccountModerationNote, AccountPin,
AccountNote
]
target_classes.each do |klass|
klass.where(target_account_id: other_account.id).find_each do |record|
record.update_attribute(:target_account_id, id)
rescue ActiveRecord::RecordNotUnique
next
end
end
CanonicalEmailBlock.where(reference_account_id: other_account.id).find_each do |record|
record.update_attribute(:reference_account_id, id)
end
Appeal.where(account_warning_id: other_account.id).find_each do |record|
record.update_attribute(:account_warning_id, id)
end
# Some follow relationships have moved, so the cache is stale
Rails.cache.delete_matched("followers_hash:#{id}:*")
Rails.cache.delete_matched("relationships:#{id}:*")
Rails.cache.delete_matched("relationships:*:#{id}")
end
end
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