Stock Change Price At Date

This module extends the standard Odoo wizard used to change a product's standard (cost) price. It adds a new Date field to that wizard, placed right after the new price field.

What users can do: - Enter a past date when changing a product's standard price, so the accounting entries created by the change are dated on that day instead of today. - Leave the date empty to use today's date as before.

Business rules and automatic behaviour: - The chosen date cannot be in the future; if it is, Odoo shows the error 'The chosen date should be today or in the past!'. - When a past date is used, the system checks whether the product already has posted stock moves dated after that date. If it does, the standard price is not changed for that product, to avoid rewriting history. - The date entered in the wizard is passed to the accounting entries created by the price change, so they are recorded on the chosen date.

Where it appears: - In the standard 'Change Standard Price' wizard (Inventory / product cost price change), a new Date field is added.

Areas touched: - The wizard stock.change.standard.price, the product model product.product and accounting entries account.move are modified to support the date and the safety check.