Subversion Repositories SmartDukaan

Last modification

• Rev 37274 2026-08-10 11:20:42
• Author: amit

• Log message:

  Freeze margin-scheme purchase price on the invoice line
  
  Refurbished (GST Rule 32(5)) lines re-derived their purchase price by serial on
  every read, resolving to the LATEST warehouse.inventoryItem row. A returned
  device gets re-GRNed, sometimes at a different price, so a credit note or a
  regenerated PDF could reverse a margin the invoice never charged. 11 already-
  billed lines resolved to a price they were not sold at; IMEI 353917853695268
  has been sold on six invoices at two different purchase prices.
  
  InvoiceService.freezeMarginPurchasePrices now stamps the value onto
  transaction.lineitem.margin_purchase_price at billing time (saveInvoice step 0,
  inside the billing transaction), and resolveMarginPurchasePrice reads the frozen
  value thereafter, falling back to the live lookup only when null so pre-existing
  lines behave exactly as before.
  
  Requires the column from db-scripts/add_margin_purchase_price_column.sql, which
  must be applied before this is deployed.