Posted by
Jacopo Cappellato on
May 02, 2006; 1:29pm
URL: http://ofbiz.116.s1.nabble.com/Dev-Manual-invoices-and-tax-adjustments-tp167837.html
Hi all,
I need to implement tax adjustments for manual invoices and I'd like to
quickly discuss with you the design of this because I'd like to put it
into the OFBiz codebase.
Requirement: I need a way to calculate taxes to apply to a manual
invoice (e.g. an invoice with no order associated to it)
Use case:
- a user (or a batch service) manually enter an invoice header and one
or more invoice items
- after that all the invoice items for the products have been entered,
the user clicks on a "create tax adjustments" link and the InvoiceItems
entries for the taxes are added to the invoice
Implementation details:
- a new service will be implemented "createTaxAdjForInvoice" that takes
as input the "invoiceId" and returns the list of adjustments
(InvoiceItems) or write them to the db
- the service above will simply prepare the data to invoke the "calcTax"
service (so all the settings in the tax data model will be considered)
Questions: with this design, all the InvoiceItems that store tax
information will be appended at the end of the invoice items; is this a
problem? Is there a way to associate an InvoiceItem to another one (such
as the tax adjustments to the product to which they refer) other than
the position (and their sequence)?
Thanks,
Jacopo
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