Error raised when the user requests a record via the first! or similar method, and the dataset does not yield any rows.
The dataset that raised this NoMatchingRow exception.
If the first argument is a Sequel::Dataset, set the dataset related to the exception to that argument, instead of assuming it is the exception message.
# File lib/sequel/exceptions.rb, line 87 def initialize(msg=nil) if msg.is_a?(Sequel::Dataset) @dataset = msg msg = nil end super end