ActiveRecord::EachValidator, how to write it.
- Apparently there is an
- Confirming: Rails
findmethod: find, if many, return all, if unable to find all, raise
Select. Fromin Rails.
- Namespacing: If the namespace verb already exists in the current namespace, that’s when you do the
acts_as_paranoidfor soft delete: this would work only if you need the parent when calling from the orphan.
- Twilio has a lookup API.
- AR is peppered with
RangeError–raised when a numerical value is out of range.
- Redis sentinel: High availability for Redis. Using Sentinel, you can create a Redis deployment that resists without human intervention to certain kinds of failures.
- Distributed system: Acts as authority for clients service: clients connect to Sentinels in order to ask for the current Redis master responsible for a given service.