account_usability: explicit error msg on unposted reconciliation

account_usability/models/account_move.py

@@ -2,10 +2,12 @@
 # @author Alexis de Lattre <alexis.delattre@akretion.com>
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
 
-from odoo import api, fields, models
+from odoo import api, fields, models, _
 from odoo.tools import float_is_zero
 from odoo.tools.misc import format_date
 from odoo.osv import expression
+from datetime import timedelta
+from odoo.exceptions import UserError
 
 
 class AccountMove(models.Model):
@@ -207,6 +209,18 @@ class AccountMove(models.Model):
         self.ensure_one()
         return '%s.pdf' % (self.name and self.name.replace('/', '_') or 'INV')
 
+    def _get_accounting_date(self, invoice_date, has_tax):
+        # On vendor bills/refunds, we want date = invoice_date unless
+        # we have a company tax_lock_date and the invoice has taxes
+        # and invoice_date <= tax_lock_date
+        date = super()._get_accounting_date(invoice_date, has_tax)
+        if self.is_purchase_document(include_receipts=True):
+            tax_lock_date = self.company_id.tax_lock_date
+            if invoice_date and tax_lock_date and has_tax and invoice_date <= tax_lock_date:
+               invoice_date = tax_lock_date + timedelta(days=1)
+            date = invoice_date
+        return date
+
 
 class AccountMoveLine(models.Model):
     _inherit = 'account.move.line'
@@ -263,3 +277,14 @@ class AccountMoveLine(models.Model):
         if no_product_code_param and no_product_code_param == 'True':
             self = self.with_context(display_default_code=False)
         return super()._get_computed_name()
+
+    def reconcile(self):
+        """Explicit error message if unposted lines"""
+        unposted_ids = self.filtered(lambda l: l.move_id.state != "posted")
+        if unposted_ids:
+            m = _("Please post the following entries before reconciliation :")
+            sep = "\n - "
+            unpost = sep.join([am.display_name for am in unposted_ids.move_id])
+            raise UserError(m + sep + unpost)
+
+        return super().reconcile()