gistfile1.rb

# This is an augmented version of the original `insert!'. In addition to the
# original functionality, it allows for specifying:
#
# - :trigger_validation:  whether to trigger validation after the record has
#                         been instantiated. Default: false.
#
# - :inhibit_callbacks:   whether to inhibit callbacks supposed to be triggered
#                         after validation. Default: true.
#
# Also, now, any attribute can be assigned, regardless of their being declared
# as `read_only'.
#
# Details about the concept and the original version at:
#   http://roman.flucti.com/painless-record-creation-with-activerecord
#
def insert!(model, attributes={}, options={})
  attributes          = attributes.stringify_keys
  trigger_validation  = options.fetch(:trigger_validation, false)
  inhibit_callbacks   = options.fetch(:inhibit_callbacks, !trigger_validation)
  begin
    record = model.new { |record| record.send(:attributes=, attributes, false) }
    if inhibit_callbacks
      def record.callback(*args)
      end
    end
    if trigger_validation
      record.valid?
    end
    record.save(false)
  rescue ActiveRecord::StatementInvalid
    if $!.message =~ /Column '(.+?)' cannot be null/
      unless attributes.key?($1)
        attributes[$1] = record.column_for_attribute($1).number? ? 0 : "-"
        retry
      end
    end
    raise
  end
  return record
end