Time comparison... greater than == more recent than 🤦‍♂️

model.rb

# I found this confusing to read... Active ones are ones that were read less than seven days ago so why is this a greater than symbol?
scope :active, -> { where("read_at IS NULL OR read_at > ?", 7.days.ago) }

# Of course! A date that is greater than another date is more recent than the other date 🤦‍♂️
scope :active, -> { where("read_at IS NULL OR read_at > ?", 7.days.ago) } # '>' == 'more recent than'

# But I think we can do better than [just] a comment (plus I already had an unread scope, why aren't I using it here???)
scope :unread, -> { where(read_at: nil) }
scope :read_within_past, ->(period) { where("read_at > ?", period.ago) } # '>' == 'more recent than'
scope :active, -> { unread.or(read_within_past(7.days)) }