Module: Counter::Xhierarchical

Extended by:
ActiveSupport::Concern
Defined in:
app/models/concerns/counter/Xhierarchical.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.increment_all!(counters, by: 1) ⇒ Object

In a single SQL transaction, increment the counters



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# File 'app/models/concerns/counter/Xhierarchical.rb', line 20

def self.increment_all! counters, by: 1
  Counter.lock.where(id: counters).update_all! "value = value + ?, updated_at: NOW()", by
end

Instance Method Details

#counters_to_update ⇒ Object

Support hierarchy of counters e.g. a open counter for an email > a newsletter > a drip_campaign > a site



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# File 'app/models/concerns/counter/Xhierarchical.rb', line 6

def counters_to_update
  [self] + dependant_counters.flat_map { |c| c.counters_to_update }
end

#dependant_counters ⇒ Object

Override this to add other counters



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# File 'app/models/concerns/counter/Xhierarchical.rb', line 11

def dependant_counters
  []
end

#perform_update!(increment) ⇒ Object 



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# File 'app/models/concerns/counter/Xhierarchical.rb', line 15

def perform_update! increment
  Counter.increment_all! counters_to_update, by: increment
end