Class: Dscf::Marketplace::UnitConversion

Inherits:
ApplicationRecord show all
Defined in:
app/models/dscf/marketplace/unit_conversion.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.ransackable_associations(_auth_object = nil) ⇒ Object 



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# File 'app/models/dscf/marketplace/unit_conversion.rb', line 19

def self.ransackable_associations(_auth_object = nil)
  %w[from_unit to_unit]
end

.ransackable_attributes(_auth_object = nil) ⇒ Object

Ransack configuration for secure filtering



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# File 'app/models/dscf/marketplace/unit_conversion.rb', line 15

def self.ransackable_attributes(_auth_object = nil)
  %w[id from_unit_id to_unit_id conversion_factor notes created_at updated_at]
end

Instance Method Details

#description ⇒ Object 



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# File 'app/models/dscf/marketplace/unit_conversion.rb', line 37

def description
  "#{from_unit&.display_name} → #{to_unit&.display_name} (×#{conversion_factor})"
end

#reverse_conversion_factor ⇒ Object 



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# File 'app/models/dscf/marketplace/unit_conversion.rb', line 31

def reverse_conversion_factor
  return nil unless conversion_factor && conversion_factor != 0

  1.0 / conversion_factor
end

#units_must_be_different ⇒ Object 



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# File 'app/models/dscf/marketplace/unit_conversion.rb', line 23

def units_must_be_different
  return unless from_unit_id && to_unit_id

  return unless from_unit_id == to_unit_id

  errors.add(:to_unit_id, "must be different from from_unit")
end