Company with many VAT code

Some companies could have more than one VAT code, one per country.
In Europe, the invoice should show the VAT code of the country of delivery.
So I think we should select the VAT code depending on this country when printing the invoice. Also we should order the identifiers to allow to pick the first one as default one.

added accounting party type::feature + 1 deleted label

I think the right way will be to store the identifier of the vat code on the invoice. It will be filled by default with the first one from the company identifiers.
In account_tax_rule_country, we add a new list of lines which have from/to country and define which identifier to use instead of the default one (same behaviour for tax).
For me, it is the best solution because it links the selection of the vat code to the tax rule used.

added 1 deleted label and removed 1 deleted label

Here is review26861002 for party and review28961002 for account_invoice.
I'm still not sure about the account_tax_rule_country modification so I will postpone it until we have more feedback. But at least we have a customisable hook for the feature.

assigned to @ced

added 1 deleted label and removed 1 deleted label

New review26861002 at https://codereview.tryton.org/26861002/#ps1

New review28961002 at https://codereview.tryton.org/28961002/#ps20001

review26861002 updated at https://codereview.tryton.org/26861002/#ps20001

review28961002 updated at https://codereview.tryton.org/28961002/#ps40001

New changeset 18d802f77fe8 by C?dric Krier in branch 'default':
Add sequence order on Identifier
http://hg.tryton.org/modules/party/rev/18d802f77fe8

added 1 deleted label and removed 1 deleted label

closed

New changeset 5a47902594a6 by C?dric Krier in branch 'default':
Add tax identifier on invoice
http://hg.tryton.org/modules/account_invoice/rev/5a47902594a6

mentioned in issue #6263 (closed)

mentioned in issue #6733 (closed)