[IMP] account: make the delivery_date appears in the header of customer invoices for French based companies

Author: jugurtha-gaci

addons/l10n_fr_account/models/account_move.py

@@ -16,6 +16,22 @@ def _get_view(self, view_id=None, view_type='form', **options):
                 shipping_fields[0].attrib.pop("groups", None)
         return arch, view
 
+    @api.depends('country_code', 'move_type')
+    def _compute_show_delivery_date(self):
+        # EXTENDS 'account'
+        super()._compute_show_delivery_date()
+        for move in self:
+            if move.l10n_fr_is_company_french:
+                move.show_delivery_date = move.is_sale_document()
+
+    def _post(self, soft=True):
+        # EXTENDS 'account'
+        posted = super()._post(soft)
+        for move in self:
+            if move.l10n_fr_is_company_french and move.is_sale_document() and not move.delivery_date:
+                move.delivery_date = move.invoice_date or fields.Date.context_today(self)
+        return posted
+
     @api.depends('company_id.country_code')
     def _compute_l10n_fr_is_company_french(self):
         for record in self: