Class: Renalware::Events::SummaryPart

Inherits:
SummaryPart show all
Defined in:
app/presenters/renalware/events/summary_part.rb

Constant Summary

Constants inherited from SummaryPart

SummaryPart::DATE_FORMAT

Instance Method Summary collapse

Methods inherited from SummaryPart

#cache?, #render?

Instance Method Details

#cache_key ⇒ Object

AR::Relation#cache_key here will issue:

SELECT COUNT(*) AS "size", MAX("events"."updated_at") AS timestamp
FROM "events" WHERE "events"."patient_id" = 1

and use size and timestamp in the cache key. We purposefully don’t use the recent_events relation here as it has includes and a limit and apart from being slower, using LIMIT in cache_key sql has been known to produce inconsistent results. We need to include the patient.cache_key otherwise if there are no events, the key will be the same for other patients with no events.



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# File 'app/presenters/renalware/events/summary_part.rb', line 33

def cache_key
  [patient.cache_key, Events::Event.for_patient(patient).cache_key].join("~")
end

#recent_events ⇒ Object 



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# File 'app/presenters/renalware/events/summary_part.rb', line 8

def recent_events
  @recent_events ||= begin
    Events::Event.includes([:created_by, :event_type])
                 .for_patient(patient)
                 .limit(Renalware.config.clinical_summary_max_events_to_display)
                 .ordered
  end
end

#recent_events_count ⇒ Object 



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# File 'app/presenters/renalware/events/summary_part.rb', line 17

def recent_events_count
  title_friendly_collection_count(
    actual: recent_events.size,
    total: patient.summary.events_count
  )
end

#to_partial_path ⇒ Object 



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# File 'app/presenters/renalware/events/summary_part.rb', line 37

def to_partial_path
  "renalware/events/events/summary_part"
end