after_commit_queue.rb 1 KB
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module AfterCommitQueue
  extend ActiveSupport::Concern

  included do
    after_commit :_run_after_commit_queue
    after_rollback :_clear_after_commit_queue
  end

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  def run_after_commit(&block)
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    _after_commit_queue << block if block
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    true
  end

  def run_after_commit_or_now(&block)
    if AfterCommitQueue.inside_transaction?
      run_after_commit(&block)
    else
      instance_eval(&block)
    end

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    true
  end

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  def self.open_transactions_baseline
    if ::Rails.env.test?
      return DatabaseCleaner.connections.count { |conn| conn.strategy.is_a?(DatabaseCleaner::ActiveRecord::Transaction) }
    end

    0
  end

  def self.inside_transaction?
    ActiveRecord::Base.connection.open_transactions > open_transactions_baseline
  end

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  protected

  def _run_after_commit_queue
    while action = _after_commit_queue.pop
      self.instance_eval(&action)
    end
  end

  def _after_commit_queue
    @after_commit_queue ||= []
  end

  def _clear_after_commit_queue
    _after_commit_queue.clear
  end
end