Class: Unidom::Inventory::InventoryItemVariance

Inherits:
ApplicationRecord
  • Object
show all
Includes:
Common::Concerns::ModelExtension
Defined in:
app/models/unidom/inventory/inventory_item_variance.rb

Overview

Inventory Item Variance 是库存项变化。#inventory_item 是被调整的库存项。#reason 是调整的原因。#quantity 是调整数量，正数表示库存增加，负数表示库存减少。

Class Method Summary collapse

Class Method Details

.adjust!(inventory_item, quantity: nil, due_to: nil, at: Time.now, description: nil, instruction: nil) ⇒ Object 



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# File 'app/models/unidom/inventory/inventory_item_variance.rb', line 26

def self.adjust!(inventory_item, quantity: nil, due_to: nil, at: Time.now, description: nil, instruction: nil)
  if inventory_item.respond_to? :quantity
    inventory_item.increment! :quantity, quantity
  else
    if quantity.nil?
      quantity = -1
      inventory_item.soft_destroy
    else
      raise ArgumentError.new('The quantity should be -1 when Inventory Item Variance adjusts a Serialized Inventory Item.')
    end
  end
  create! inventory_item: inventory_item, reason: due_to, quantity: quantity, description: description, instruction: instruction, opened_at: at
end