Class: OpenehrRails::Rm::DataValue

Inherits:
ActiveRecord::Base
  • Object
show all
Defined in:
lib/openehr_rails/rm/data_value.rb

Overview

STI base for stored DATA_VALUE leaves (DV_*). Each subclass maps its openEHR attributes onto the shared typed columns and implements #value (polymorphic reader) and #to_canonical_hash (must emit the exact shape Storable#rm_value writes into the JSON cache).

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.find_sti_class(type_name) ⇒ Object 



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# File 'lib/openehr_rails/rm/data_value.rb', line 29

def find_sti_class(type_name)
  TypeMap.data_value_class_for(type_name)
end

.matching(value) ⇒ Object

Type-aware value matching across the typed columns; used by the AQL path fallback where the caller does not know the DV type.



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# File 'lib/openehr_rails/rm/data_value.rb', line 39

def matching(value)
  case value
  when Numeric
    where(magnitude: value.to_f)
      .or(where(integer_value: value.to_i))
      .or(where(numerator: value.to_f))
  when true, false
    where(boolean_value: value)
  when Date, Time, DateTime
    where(datetime_value: value)
      .or(where(date_value: value))
  else
    text = value.to_s
    where(text_value: text)
      .or(where(code_string: text))
      .or(where(uri_value: text))
      .or(where(duration_value: text))
      .or(where(identifier_id: text))
  end
end

.sti_class_for(type_name) ⇒ Object 



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# File 'lib/openehr_rails/rm/data_value.rb', line 33

def sti_class_for(type_name)
  TypeMap.data_value_class_for(type_name)
end

.sti_name ⇒ Object 



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# File 'lib/openehr_rails/rm/data_value.rb', line 25

def sti_name
  TypeMap.rm_type_for(self) || super
end

Instance Method Details

#to_canonical_hash ⇒ Object

Raises:

  • (NotImplementedError) 


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# File 'lib/openehr_rails/rm/data_value.rb', line 65

def to_canonical_hash
  raise NotImplementedError, "#{self.class.name} must implement #to_canonical_hash"
end

#value ⇒ Object

Raises:

  • (NotImplementedError) 


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# File 'lib/openehr_rails/rm/data_value.rb', line 61

def value
  raise NotImplementedError, "#{self.class.name} must implement #value"
end