[FIX] account_payment_order: set partner_bank_id + order generation from invoice tree + attachment file name

- fix set partner_bank_id in account move lines
  Case: The bank account isn't set properly in the payment order lines, because the bank account is only got from account.move.line or the first bank account in the partner_id, but never from the invoice (account.move).
  Solution: With this fix, the bank account will be get from account.move when matching the criteria.
-  fix payment orders from invoice tree view
  Case: User can't add invoices to payment/debit orders from the tree view but it's still possible to add them one by one from the form view.
  Solution: Remove binding_views="form": by default are "tree & form". With this fix, users can add payment/debit orders from the invoice tree view
- fix the attachment file name & dowload.
  Case: After the configuration of a debit order and generating the .xml file, user can't download it from the next step screen using the download link.
  Solution: This fix makes the .xml file downloadable from the .xml file name as it was in older versions

account_payment_order/__manifest__.py

@@ -8,7 +8,7 @@
 
 {
     "name": "Account Payment Order",
-    "version": "13.0.1.1.0",
+    "version": "13.0.1.3.0",
     "license": "AGPL-3",
     "author": "ACSONE SA/NV, "
     "Therp BV, "

account_payment_order/models/account_move_line.py

@@ -2,7 +2,7 @@
 # © 2014 Serv. Tecnol. Avanzados - Pedro M. Baeza
 # License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl.html).
 
-from odoo import fields, models
+from odoo import api, fields, models
 from odoo.fields import first
 
 
@@ -12,6 +12,9 @@ class AccountMoveLine(models.Model):
     partner_bank_id = fields.Many2one(
         comodel_name="res.partner.bank",
         string="Partner Bank Account",
+        compute="_compute_partner_bank_id",
+        readonly=False,
+        store=True,
         help="Bank account on which we should pay the supplier",
     )
     bank_payment_line_id = fields.Many2one(
@@ -23,6 +26,23 @@ class AccountMoveLine(models.Model):
         string="Payment lines",
     )
 
+    @api.depends(
+        "move_id", "move_id.invoice_partner_bank_id", "move_id.payment_mode_id"
+    )
+    def _compute_partner_bank_id(self):
+        for ml in self:
+            if (
+                ml.move_id.type in ("in_invoice", "in_refund")
+                and not ml.reconciled
+                and ml.payment_mode_id.payment_order_ok
+                and ml.account_id.internal_type in ("receivable", "payable")
+                and not any(
+                    p_state in ("draft", "open", "generated")
+                    for p_state in ml.payment_line_ids.mapped("state")
+                )
+            ):
+                ml.partner_bank_id = ml.move_id.invoice_partner_bank_id.id
+
     def _prepare_payment_line_vals(self, payment_order):
         self.ensure_one()
         assert payment_order, "Missing payment order"

account_payment_order/views/account_invoice_view.xml

@@ -57,7 +57,6 @@
         name="Add to Payment/Debit Order"
         res_model="account.invoice.payment.line.multi"
         binding_model="account.move"
-        binding_views="form"
         view_mode="form"
         target="new"
         id="account_invoice_create_account_payment_line_action"

account_payment_order/views/ir_attachment.xml

@@ -13,12 +13,7 @@
                         <field name="name" />
                     </h1>
                     <group name="main">
-                        <field
+                        <field name="datas" filename="name" string="Generated File" />
-                            name="datas"
-                            filename="store_fname"
-                            string="Generated File"
-                        />
-                        <field name="store_fname" invisible="1" />
                         <label for="create_uid" string="Created by" />
                         <div name="creation_div">
                             <field name="create_uid" readonly="1" class="oe_inline" />