[IMP] account, payment form view: add a button to open payment matching

button will only be visible if the move_line are not reconciled yet
This button will allow user to register a payment and then reconcile it with multiple invoices in the payment matching view.

Was PR #15157

addons/account/models/account_payment.py

@@ -179,6 +179,16 @@ class account_payment(models.Model):
     def _get_has_invoices(self):
         self.has_invoices = bool(self.invoice_ids)
 
+    @api.multi
+    @api.depends('move_line_ids.reconciled')
+    def _get_move_reconciled(self):
+        for payment in self:
+            rec = True
+            for aml in payment.move_line_ids.filtered(lambda x: x.account_id.reconcile):
+                if not aml.reconciled:
+                    rec = False
+            payment.move_reconciled = rec
+
     @api.one
     @api.depends('invoice_ids', 'amount', 'payment_date', 'currency_id')
     def _compute_payment_difference(self):
@@ -217,6 +227,20 @@ class account_payment(models.Model):
 
     # FIXME: ondelete='restrict' not working (eg. cancel a bank statement reconciliation with a payment)
     move_line_ids = fields.One2many('account.move.line', 'payment_id', readonly=True, copy=False, ondelete='restrict')
+    move_reconciled = fields.Boolean(compute="_get_move_reconciled", readonly=True)
+
+    def open_payment_matching_screen(self):
+        # Open reconciliation view for customers/suppliers
+        action_context = {'show_mode_selector': False, 'company_ids': [self.company_id.id], 'partner_ids': [self.partner_id.commercial_partner_id.id]}
+        if self.partner_type == 'customer':
+            action_context.update({'mode': 'customers'})
+        elif self.partner_type == 'supplier':
+            action_context.update({'mode': 'suppliers'})
+        return {
+            'type': 'ir.actions.client',
+            'tag': 'manual_reconciliation_view',
+            'context': action_context,
+        }
 
     @api.one
     @api.depends('invoice_ids', 'payment_type', 'partner_type', 'partner_id')

addons/account/views/account_payment_view.xml

@@ -89,7 +89,11 @@
                             <button class="oe_stat_button" name="button_invoices"
                                     string="Invoices" type="object"
                                     attrs="{'invisible':[('has_invoices','=',False)]}" icon="fa-bars"/>
+                            <button class="oe_stat_button" name="open_payment_matching_screen"
+                                    string="Payment Matching" type="object"
+                                    attrs="{'invisible':[('move_reconciled','=',True)]}" icon="fa-university"/>
                             <field name="has_invoices" invisible="1"/>
+                            <field name="move_reconciled" invisible="1"/>
                         </div>
                         <field name="id" invisible="1"/>
                         <div class="oe_title" attrs="{'invisible': [('state', '=', 'draft')]}">