class ConceptQL::Operators::PlaceOfServiceFilter
Filters the incoming stream of events to only those that have a an associated visit_occurrence with the matching place_of_service
Provenance
related concepts are the ones found in the xxx_type_concept_id field.
If the event has NULL for the provenance-related field, they are filtered out.
Multiple provenances can be specified at once
Public Instance Methods
query(db)
click to toggle source
# File lib/conceptql/operators/place_of_service_filter.rb, line 32 def query(db) db.from(stream.evaluate(db)) .where(place_of_service_concept_id: place_of_service_concept_ids(db)) end
Private Instance Methods
place_of_service_concept_ids(db)
click to toggle source
# File lib/conceptql/operators/place_of_service_filter.rb, line 39 def place_of_service_concept_ids(db) db.from(:concept) .where(concept_code: arguments.map(&:to_s)) .where(vocabulary_id: 14) .select(:concept_id) end