method

rescue_with_handler

v7.1.3.4 - Show latest stable - 0 notes - Class: ActiveSupport::Rescuable::ClassMethods

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What's this?

rescue_with_handler(exception, object: self, visited_exceptions: []) public

Matches an exception to a handler based on the exception class.

If no handler matches the exception, check for a handler matching the (optional) exception.cause. If no handler matches the exception or its cause, this returns nil, so you can deal with unhandled exceptions. Be sure to re-raise unhandled exceptions if this is what you expect.

begin
  # ...
rescue => exception
  rescue_with_handler(exception) || raise
end

Returns the exception if it was handled and nil if it was not.

Show source

# File activesupport/lib/active_support/rescuable.rb, line 90
      def rescue_with_handler(exception, object: self, visited_exceptions: [])
        visited_exceptions << exception

        if handler = handler_for_rescue(exception, object: object)
          handler.call exception
          exception
        elsif exception
          if visited_exceptions.include?(exception.cause)
            nil
          else
            rescue_with_handler(exception.cause, object: object, visited_exceptions: visited_exceptions)
          end
        end
      end

rescue_with_handler

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