Class: Spree::Adjustment

Inherits:
Base
  • Object
show all
Extended by:
DisplayMoney
Defined in:
app/models/spree/adjustment.rb

Overview

Adjustments represent a change to the item_total of an Order. Each adjustment has an amount that can be either positive or negative.

Adjustments can be “opened” or “closed”. Once an adjustment is closed, it will not be automatically updated.

Boolean attributes

  1. eligible?

    This boolean attributes stores whether this adjustment is currently eligible for its order. Only eligible adjustments count towards the order’s adjustment total. This allows an adjustment to be preserved if it becomes ineligible so it might be reinstated.

Instance Method Summary collapse

Methods included from DisplayMoney

money_methods

Methods inherited from Base

display_includes, #initialize_preference_defaults, page, preference

Methods included from Preferences::Preferable

#admin_form_preference_names, #default_preferences, #defined_preferences, #get_preference, #has_preference!, #has_preference?, #preference_default, #preference_type, #set_preference

Instance Method Details

#calculate_eligibility ⇒ true, false

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Calculates based on attached promotion (if this is a promotion adjustment) whether this promotion is still eligible.

Returns:

  • (true, false) —

    Whether this adjustment is eligible



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# File 'app/models/spree/adjustment.rb', line 140

def calculate_eligibility
  if !finalized? && source && promotion?
    source.promotion.eligible?(adjustable, promotion_code: promotion_code)
  else
    eligible?
  end
end

#cancellation? ⇒ Boolean

Returns true when this is a cancellation adjustment (Cancellation adjustments have a UnitCancel source).

Returns:

  • (Boolean) —

    true when this is a cancellation adjustment (Cancellation adjustments have a UnitCancel source)



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# File 'app/models/spree/adjustment.rb', line 90

def cancellation?
  source_type == 'Spree::UnitCancel'
end

#currency ⇒ Object 



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# File 'app/models/spree/adjustment.rb', line 75

def currency
  adjustable ? adjustable.currency : Spree::Config[:currency]
end

#finalize ⇒ Object 



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# File 'app/models/spree/adjustment.rb', line 67

def finalize
  update_attributes(finalized: true)
end

#finalize! ⇒ Object 



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# File 'app/models/spree/adjustment.rb', line 59

def finalize!
  update_attributes!(finalized: true)
end

#promotion? ⇒ Boolean

Returns true when this is a promotion adjustment (Promotion adjustments have a PromotionAction source).

Returns:

  • (Boolean) —

    true when this is a promotion adjustment (Promotion adjustments have a PromotionAction source)



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# File 'app/models/spree/adjustment.rb', line 80

def promotion?
  source_type == 'Spree::PromotionAction'
end

#recalculate ⇒ BigDecimal

Recalculate and persist the amount from this adjustment’s source based on the adjustable (Order, Shipment, or LineItem)

If the adjustment has no source (such as when created manually from the admin) or is closed, this is a noop.

Returns:

  • (BigDecimal) —

    New amount of this adjustment



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# File 'app/models/spree/adjustment.rb', line 101

def recalculate
  if finalized? && !tax?
    return amount
  end

  # If the adjustment has no source, do not attempt to re-calculate the
  # amount.
  # Some scenarios where this happens:
  #   - Adjustments that are manually created via the admin backend
  #   - PromotionAction adjustments where the PromotionAction was deleted
  #     after the order was completed.
  if source.present?
    self.amount = source.compute_amount(adjustable)

    if promotion?
      self.eligible = calculate_eligibility
    end

    # Persist only if changed
    # This is only not a save! to avoid the extra queries to load the order
    # (for validations) and to touch the adjustment.
    update_columns(eligible: eligible, amount: amount, updated_at: Time.current) if changed?
  end
  amount
end

#tax? ⇒ Boolean

Returns true when this is a tax adjustment (Tax adjustments have a TaxRate source).

Returns:

  • (Boolean) —

    true when this is a tax adjustment (Tax adjustments have a TaxRate source)



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# File 'app/models/spree/adjustment.rb', line 85

def tax?
  source_type == 'Spree::TaxRate'
end

#unfinalize ⇒ Object 



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# File 'app/models/spree/adjustment.rb', line 71

def unfinalize
  update_attributes(finalized: false)
end

#unfinalize! ⇒ Object 



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# File 'app/models/spree/adjustment.rb', line 63

def unfinalize!
  update_attributes!(finalized: false)
end

#update!(*args) ⇒ Object 



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# File 'app/models/spree/adjustment.rb', line 127

def update!(*args)
  if args.empty?
    Spree::Deprecation.warn "Calling adjustment.update! with no arguments to recalculate amounts and eligibility is deprecated, since it conflicts with AR::Base#update! Please use adjustment.recalculate instead"
    recalculate
  else
    super
  end
end