Class: ConceptQL::Operators::PlaceOfServiceFilter
- Defined in:
- lib/conceptql/operators/place_of_service_filter.rb
Overview
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
Instance Attribute Summary
Attributes inherited from Operator
#arguments, #errors, #nodifier, #options, #upstreams, #values
Instance Method Summary collapse
Methods inherited from Operator
#annotate, #cast_column, #code_list, codes_should_match, #columns, #create_upstreams, #data_model, #database_type, default_query_columns, #domains, #dup_values, #dynamic_columns, #evaluate, inherited, #initialize, #inspect, #label, new, #operator_name, #optimized, query_columns, register, require_column, #required_columns, #scope, #select_it, #setup_select, #sql, #stream, #to_op, #unionable?, #upstreams_valid?, #valid?
Methods included from Metadatable
#allows_many_upstreams, #allows_one_upstream, #argument, #auto_label, #basic_type, #category, #derive_metadata_from_validations, #desc, #domains, #get_desc, #humanized_class_name, #inherited, #just_class_name, #no_desc, #option, #predominant_domains, #pref_name, #preferred_name, #reset_categories, #standard_description, #to_metadata, #validate_at_least_one_upstream_to_metadata, #validate_at_most_one_upstream_to_metadata, #validate_no_arguments_to_metadata, #validate_no_upstreams_to_metadata, #validate_one_upstream_to_metadata, #validate_required_options_to_metadata, #warn_about_missing_metadata
Constructor Details
This class inherits a constructor from ConceptQL::Operators::Operator
Instance Method Details
#query(db) ⇒ Object
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# 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 |