fix: update expense sheet state synchronization on payment changes and adjust UI visibility for wait_post status

models/account_payment.py

@@ -34,3 +34,22 @@ class AccountPayment(models.Model):
             return res
             
         return super()._synchronize_to_moves(changed_fields)
+
+    def action_cancel(self):
+        res = super().action_cancel()
+        for payment in self:
+            if payment.expense_sheet_id:
+                payment.expense_sheet_id._compute_state()
+            # Also check if it's linked via realization
+            if payment.realization_id and payment.realization_id.expense_sheet_id:
+                payment.realization_id.expense_sheet_id._compute_state()
+        return res
+
+    def action_draft(self):
+        res = super().action_draft()
+        for payment in self:
+            if payment.expense_sheet_id:
+                payment.expense_sheet_id._compute_state()
+            if payment.realization_id and payment.realization_id.expense_sheet_id:
+                payment.realization_id.expense_sheet_id._compute_state()
+        return res

models/hr_expense_sheet.py

@@ -20,13 +20,15 @@ class HrExpenseSheet(models.Model):
             company_paid = sheet.expense_line_ids.filtered(lambda e: e.payment_mode == 'company_account')
             
             if company_paid:
-                # If Odoo thought it was 'done' (paid), we might need to hold it at 'wait_post'
+                # If Odoo thought it was 'done' (fully or partially paid/in_payment), 
+                # we may need to hold it at 'wait_post' until realization is complete.
                 if sheet.state == 'done':
-                    # All receipts must be marked received (checked earlier by _compute_receipt_status)
-                    # We also check if at least one realization exists and all are posted
                     realizations = company_paid.mapped('realization_ids')
                     has_posted_realization = realizations and all(r.state == 'posted' for r in realizations)
                     
+                    # Also consider payment state: if it's NOT paid or in_payment, it should definitely stay in the state super() set (e.g. 'posted')
+                    # Standard Odoo sets state='done' when payment_state is 'paid' or 'in_payment'.
+                    
                     if sheet.receipt_status != 'received' or not has_posted_realization:
                         sheet.state = 'wait_post'
 
@@ -134,3 +136,30 @@ class HrExpenseSheet(models.Model):
                 sheet.receipt_status = 'received'
             else:
                 sheet.receipt_status = 'pending'
+
+    def action_reset_expense_sheets(self):
+        """ 
+        Overriding reset to handle realizations. 
+        If a realization is posted, we should probably warn or at least prevent 
+        resetting if we want strict audit. For now, we'll allow it but 
+        cancel any draft/confirmed realizations.
+        """
+        for sheet in self:
+            realizations = sheet.expense_line_ids.mapped('realization_ids')
+            posted_realizations = realizations.filtered(lambda r: r.state == 'posted')
+            if posted_realizations:
+                raise UserError(_("You cannot reset this report because it has one or more Posted Realizations (%s). Please reverse or cancel the realization journal entries first.") % ", ".join(posted_realizations.mapped('name')))
+            
+            # Reset draft/confirmed ones back to draft if resetting the sheet
+            realizations.filtered(lambda r: r.state != 'posted').write({'state': 'draft'})
+            
+        return super().action_reset_expense_sheets()
+
+    def action_refuse_expense_sheets(self):
+        """ Handle realizations on refusal as well. """
+        for sheet in self:
+            realizations = sheet.expense_line_ids.mapped('realization_ids')
+            if realizations.filtered(lambda r: r.state == 'posted'):
+                raise UserError(_("You cannot refuse this report because it has Posted Realizations. Revert them first."))
+            realizations.write({'state': 'draft'})
+        return super().action_refuse_expense_sheets()

views/hr_expense_views.xml

@@ -136,13 +136,25 @@
         <field name="model">hr.expense.sheet</field>
         <field name="inherit_id" ref="hr_expense.view_hr_expense_sheet_form"/>
         <field name="arch" type="xml">
-            <!-- Restrict Posting to Accountants -->
-            <xpath expr="//button[@name='action_register_payment']" position="attributes">
-                <attribute name="groups">account.group_account_invoice</attribute>
+            <!-- Update standard Reset to Draft and Cancel buttons to include 'wait_post' -->
+            <xpath expr="//header//button[@name='action_reset_expense_sheets']" position="attributes">
+                <attribute name="invisible">state not in ['approve', 'post', 'done', 'cancel', 'wait_post']</attribute>
             </xpath>
+            <xpath expr="//header//button[@name='action_refuse_expense_sheets']" position="attributes">
+                <attribute name="invisible">state not in ['submit', 'approve', 'post', 'wait_post']</attribute>
+            </xpath>
+
             <xpath expr="//field[@name='state']" position="attributes">
                 <attribute name="statusbar_visible">draft,submit,approve,post,wait_post,done</attribute>
             </xpath>
+            <xpath expr="//header" position="inside">
+                <button name="_compute_state" 
+                        string="Recompute Status" 
+                        type="object" 
+                        groups="base.group_erp_manager" 
+                        class="btn btn-secondary"
+                        help="Force refresh the report status based on current payments and receipts."/>
+            </xpath>
 
             <xpath expr="//field[@name='expense_line_ids']/tree/field[@name='name']" position="before">
                 <field name="sequence_name" column_invisible="not parent.id"/>