Module: Renalware::Pathology::ObservationSetMethods

Defined in:
app/models/renalware/pathology/observations_jsonb_serializer.rb

Overview

We mix this module into any database-returned jsonb hash of observations (e.g. CurrentObservationSet.values and Letter.pathology_snapshot)

Constant Summary collapse

VALID_SUFFIXES = 
%w(_result _observed_at).freeze

Instance Method Summary collapse

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method_name, *_args, &_block) ⇒ Object

Support these syntaxes

values.hgb # => { result: ... observed_at: ...}
values.HGB # => { result: ... observed_at: ...}
values.hgb_result # => 3.3
values.hgb_observed_at # => "2017-17-01"

So the values has methods corresponding to the entire set of possible OBX codes, and also methods to reach in and get their result and observed_at date.



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# File 'app/models/renalware/pathology/observations_jsonb_serializer.rb', line 19

def method_missing(method_name, *_args, &_block)
  code, suffix = method_parts(method_name)
  if VALID_SUFFIXES.include?(suffix) || AllObservationCodes.include?(code)
    observation_hash_or_hash_element_for(code, suffix)
  else
    super
  end
end

Instance Method Details

#method_parts(method_name) ⇒ Object

From eg hgb_result, returns

:HGB, “result” 


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# File 'app/models/renalware/pathology/observations_jsonb_serializer.rb', line 30

def method_parts(method_name)
  matches = method_name.to_s.match(/([^_]*)(\w*)/)
  [matches[1]&.upcase&.to_sym, matches[2]]
end

#observation_hash_or_hash_element_for(code, suffix) ⇒ Object 



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# File 'app/models/renalware/pathology/observations_jsonb_serializer.rb', line 35

def observation_hash_or_hash_element_for(code, suffix)
  obs_hash = self[code]
  return nil if obs_hash.blank? # patient may not have this code in the set, or it might be {}
  return obs_hash[:result] if suffix == "_result"
  return Date.parse(obs_hash[:observed_at]) if suffix == "_observed_at"

  obs_hash
end