Class: Redis::Pipeline::Multi

Inherits:
Redis::Pipeline show all
Defined in:
lib/redis/pipeline.rb

Instance Attribute Summary

Attributes inherited from Redis::Pipeline

#db, #futures

Instance Method Summary (collapse)

Methods inherited from Redis::Pipeline

#call, #call_pipeline, #initialize, #shutdown?, #with_reconnect, #with_reconnect?, #without_reconnect, #without_reconnect?

Constructor Details

This class inherits a constructor from Redis::Pipeline

Instance Method Details

- (Object) commands



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# File 'lib/redis/pipeline.rb', line 94

def commands
  [[:multi]] + super + [[:exec]]
end

- (Object) finish(replies)



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# File 'lib/redis/pipeline.rb', line 73

def finish(replies)
  exec = replies.last

  return if exec.nil? # The transaction failed because of WATCH.

  # EXEC command failed.
  raise exec if exec.is_a?(CommandError)

  if exec.size < futures.size - 2
    # Some command wasn't recognized by Redis.
    raise replies.detect { |r| r.is_a?(CommandError) }
  end

  super(exec) do |reply|
    # Because an EXEC returns nested replies, hiredis won't be able to
    # convert an error reply to a CommandError instance itself. This is
    # specific to MULTI/EXEC, so we solve this here.
    reply.is_a?(::RuntimeError) ? CommandError.new(reply.message) : reply
  end
end