Class: Formulary::QuantityLimitDetailExtensionFactory

Inherits:
Object
  • Object
show all
Defined in:
lib/formulary/quantity_limit_detail_extension_factory.rb

Overview

Class to build the FHIR extensions for the quantity limit detail field of the the formulary item profile (Basic Resource)

Constant Summary collapse

PILL_ROLLING =

Selection for tablet, capsule, caplet, etc.

[
  {
    url: QUANTITY_LIMIT_DETAIL_ROLLING_EXTENSION,
    valueTiming: {
      repeat: {
        count: 60,
        period: 30,
        periodUnit: "d",
      },
    },
  },
  {
    url: QUANTITY_LIMIT_DETAIL_ROLLING_EXTENSION,
    valueTiming: {
      repeat: {
        count: 30,
        period: 30,
        periodUnit: "d",
      },
    },
  },
  {
    url: QUANTITY_LIMIT_DETAIL_ROLLING_EXTENSION,
    valueTiming: {
      repeat: {
        count: 120,
        period: 30,
        periodUnit: "d",
      },
    },
  },
  {
    url: QUANTITY_LIMIT_DETAIL_ROLLING_EXTENSION,
    valueTiming: {
      repeat: {
        count: 9,
        period: 30,
        periodUnit: "d",
      },
    },
  },
].freeze
LIQUID_ROLLING =

Selection for solution, suspension, etc.

[
  {
    url: QUANTITY_LIMIT_DETAIL_ROLLING_EXTENSION,
    valueTiming: {
      repeat: {
        count: 60,
        period: 30,
        periodUnit: "d",
      },
    },
  },
  {
    url: QUANTITY_LIMIT_DETAIL_ROLLING_EXTENSION,
    valueTiming: {
      repeat: {
        count: 300,
        period: 30,
        periodUnit: "d",
      },
    },
  },
  {
    url: QUANTITY_LIMIT_DETAIL_ROLLING_EXTENSION,
    valueTiming: {
      repeat: {
        count: 15,
        period: 30,
        periodUnit: "d",
      },
    },
  },
].freeze
PASTE_ROLLING =

Selection for cream, ointment, gel, paste, etc.

[
  {
    url: QUANTITY_LIMIT_DETAIL_ROLLING_EXTENSION,
    valueTiming: {
      repeat: {
        count: 60,
        period: 30,
        periodUnit: "d",
      },
    },
  },
  {
    url: QUANTITY_LIMIT_DETAIL_ROLLING_EXTENSION,
    valueTiming: {
      repeat: {
        count: 15,
        period: 30,
        periodUnit: "d",
      },
    },
  },
  {
    url: QUANTITY_LIMIT_DETAIL_ROLLING_EXTENSION,
    valueTiming: {
      repeat: {
        count: 100,
        period: 30,
        periodUnit: "d",
      },
    },
  },
].freeze
INJECTION_ROLLING =

Selection injections

[
  {
    url: QUANTITY_LIMIT_DETAIL_ROLLING_EXTENSION,
    valueTiming: {
      repeat: {
        count: 12,
        period: 30,
        periodUnit: "d",
      },
    },
  },
  {
    url: QUANTITY_LIMIT_DETAIL_ROLLING_EXTENSION,
    valueTiming: {
      repeat: {
        count: 1,
        period: 30,
        periodUnit: "d",
      },
    },
  },
  {
    url: QUANTITY_LIMIT_DETAIL_ROLLING_EXTENSION,
    valueTiming: {
      repeat: {
        count: 15,
        period: 30,
        periodUnit: "d",
      },
    },
  },
].freeze
OPHTHALMIC_ROLLING =

Selection for ophthalmic

[
  {
    url: QUANTITY_LIMIT_DETAIL_ROLLING_EXTENSION,
    valueTiming: {
      repeat: {
        count: 20,
        period: 30,
        periodUnit: "d",
      },
    },
  },
  {
    url: QUANTITY_LIMIT_DETAIL_ROLLING_EXTENSION,
    valueTiming: {
      repeat: {
        count: 30,
        period: 30,
        periodUnit: "d",
      },
    },
  },
].freeze
DAYS_SUPPLY =

Sample days supply extension

[
  {
    url: QUANTITY_LIMIT_DETAIL_DAYS_SUPPLY_EXTENSION,
    valueTiming: {
      repeat: {
        boundsDuration: {
          value: 365,
          system: UCUM_SYSTEM,
          code: "d",
        },
        count: 1,
        period: 180,
        periodUnit: "d",
      },
    },
  },
  nil,
  nil,
  nil,
  nil,
  {
    url: QUANTITY_LIMIT_DETAIL_DAYS_SUPPLY_EXTENSION,
    valueTiming: {
      repeat: {
        boundsDuration: {
          value: 365,
          system: UCUM_SYSTEM,
          code: "d",
        },
        count: 2,
        period: 28,
        periodUnit: "d",
      },
    },
  },
].freeze

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(drug_name) ⇒ QuantityLimitDetailExtensionFactory

Returns a new instance of QuantityLimitDetailExtensionFactory.



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# File 'lib/formulary/quantity_limit_detail_extension_factory.rb', line 11

def initialize(drug_name)
  @drug_name = drug_name
  set_rolling_extension
end

Instance Attribute Details

#drug_name ⇒ Object (readonly)

Returns the value of attribute drug_name.



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# File 'lib/formulary/quantity_limit_detail_extension_factory.rb', line 9

def drug_name
  @drug_name
end

#rolling_extension ⇒ Object (readonly)

Returns the value of attribute rolling_extension.



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# File 'lib/formulary/quantity_limit_detail_extension_factory.rb', line 9

def rolling_extension
  @rolling_extension
end

Instance Method Details

#build ⇒ Object

Construct a quantityLimitDetail FHIR extension instance



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# File 'lib/formulary/quantity_limit_detail_extension_factory.rb', line 17

def build
  FHIR::Extension.new(
    url: QUANTITY_LIMIT_DETAIL_EXTENSION,
    extension: [
      rolling_extension,
      maximum_daily_extension,
      days_supply_extension,
    ].compact,
  )
end

#days_supply_extension ⇒ Object (private)

Selects a days supply extension from the sample list DAYS_SUPPLY

Returns:

  • the days supply extension [Object]



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# File 'lib/formulary/quantity_limit_detail_extension_factory.rb', line 32

def days_supply_extension
  DAYS_SUPPLY.sample
end

#maximum_daily_extension ⇒ Object (private)

Structure the maximum daily extension based on the Rolling extension

Returns:

  • the maximum daily extension [Hash] or nil



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# File 'lib/formulary/quantity_limit_detail_extension_factory.rb', line 38

def maximum_daily_extension
  return if rolling_extension.nil?
  extension = nil
  count = rolling_extension[:valueTiming][:repeat][:count]
  period = rolling_extension[:valueTiming][:repeat][:period]
  if count % period == 0
    extension = {
      url: QUANTITY_LIMIT_DETAIL_MAXIMUM_DAILY_EXTENSION,
      valueQuantity: {
        value: count / period,
      },
    }
  end
  extension
end

#set_rolling_extension ⇒ Object (private)

Sets @rolling_extension based on the drug form

Returns:

  • @rolling_extension



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# File 'lib/formulary/quantity_limit_detail_extension_factory.rb', line 56

def set_rolling_extension
  ext = nil
  pill_form = ["tablet", "capsule", "caplet"].any? { |s| drug_name.downcase.include?(s) }
  paste_form = ["paste", "cream", "ointment", "gel"].any? { |s| drug_name.downcase.include?(s) }
  liquid_form = ["ml", "solution", "suspension"].any? { |s| drug_name.downcase.include?(s) }
  injection_form = drug_name.downcase.include?("injection")
  ophthalmic = drug_name.downcase.include?("ophthalmic")
  if ophthalmic
    ext = OPHTHALMIC_ROLLING.sample
  elsif injection_form
    ext = INJECTION_ROLLING.sample
  elsif pill_form
    ext = PILL_ROLLING.sample
  elsif paste_form
    ext = PASTE_ROLLING.sample
  elsif liquid_form
    ext = LIQUID_ROLLING.sample
  end
  @rolling_extension = ext
end