16.0.1.3.0 - Fix period selection upon reversal with a specific date + QoL

models/account_move.py

@@ -17,12 +17,11 @@
 #    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
 ##############################################################################
-
 from odoo import fields, models
 
 
 class AccountMove(models.Model):
-    """Add a period & dates onto accounting documents."""
+    """Journal Entries: Add period, filled based on date."""
 
     _inherit = "account.move"
 
@@ -30,18 +29,20 @@ class AccountMove(models.Model):
         comodel_name="account.period",
         string="Period",
         ondelete="restrict",
+        copy=False,  # Do not copy; will be reset upon validation.
         help="The period this accounting document is in.",
+        index=True,
         states={"posted": [("readonly", True), ("required", True)]},
     )
 
-    def action_post(self):
-        """Override accounting document validation to fill period."""
-
-        self.fill_period()
-        return super().action_post()
+    def _post(self, soft=True):
+        """Override validation to fill period."""
+        ret = super()._post(soft=soft)
+        self.filtered(lambda move: move.state == "posted").fill_period()
+        return ret
 
     def fill_period(self):
-        """Find an open period around move date, set it onto that move."""
+        """Find an open period around move date, set it onto each move."""
         today = fields.Date.context_today(self)
 
         for accdoc in self: