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59 lines
1.6 KiB
Ruby
59 lines
1.6 KiB
Ruby
class MyModuleRepositoryRow < ApplicationRecord
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attr_accessor :last_modified_by
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attr_accessor :comment
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belongs_to :assigned_by,
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foreign_key: 'assigned_by_id',
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class_name: 'User',
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optional: true
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belongs_to :repository_row,
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inverse_of: :my_module_repository_rows
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belongs_to :my_module,
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touch: true,
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inverse_of: :my_module_repository_rows
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belongs_to :repository_stock_unit_item, optional: true
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validates :repository_row, uniqueness: { scope: :my_module }
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around_save :deduct_stock_balance, if: :stock_consumption_changed?
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before_save :nulify_stock_consumption, if: :stock_consumption_changed?
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def consume_stock(user, stock_consumption, comment = nil)
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ActiveRecord::Base.transaction(requires_new: true) do
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lock!
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assign_attributes(
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stock_consumption: stock_consumption,
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repository_stock_unit_item_id:
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repository_row.repository_stock_value.repository_stock_unit_item_id,
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last_modified_by: user,
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comment: comment
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)
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save!
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end
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end
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private
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def nulify_stock_consumption
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self.stock_consumption = nil if stock_consumption.zero?
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end
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def deduct_stock_balance
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stock_value = repository_row.repository_stock_value
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delta = stock_consumption.to_d - stock_consumption_was.to_d
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stock_value.lock!
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stock_value.amount = stock_value.amount - delta
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yield
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stock_value.save!
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stock_value.repository_ledger_records.create!(
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reference: self,
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user: last_modified_by,
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amount: delta,
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balance: stock_value.amount,
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comment: comment
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)
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save!
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end
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end
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