Add field local_instrument in payment lines and bank payment lines

account_banking_pain_base/models/account_payment_line.py

@@ -15,6 +15,10 @@ class AccountPaymentLine(models.Model):
         string='Priority', default='NORM',
         help="This field will be used as 'Instruction Priority' in "
              "the generated PAIN file.")
+    # local_instrument is used in some countries, for example
+    # switzerland, cf l10n_ch_sepa that adds some entries in
+    # the selection field
+    local_instrument = fields.Selection([], string='Local Instrument')
     # PAIN allows 140 characters
     communication = fields.Char(size=140)
     # The field struct_communication_type has been dropped in v9

account_banking_pain_base/models/bank_payment_line.py

@@ -10,10 +10,13 @@ class BankPaymentLine(models.Model):
 
     priority = fields.Selection(
         related='payment_line_ids.priority', string='Priority')
+    local_instrument = fields.Selection(
+        related='payment_line_ids.local_instrument',
+        string='Local Instrument')
 
     @api.model
     def same_fields_payment_line_and_bank_payment_line(self):
         res = super(BankPaymentLine, self).\
             same_fields_payment_line_and_bank_payment_line()
-        res += ['priority']
+        res += ['priority', 'local_instrument']
         return res

account_banking_pain_base/views/account_payment_line.xml

@@ -14,6 +14,7 @@
     <field name="arch" type="xml">
         <field name="communication_type" position="before">
             <field name="priority"/>
+            <field name="local_instrument" invisible="1"/>
         </field>
     </field>
 </record>

account_banking_pain_base/views/bank_payment_line_view.xml

@@ -14,6 +14,7 @@
     <field name="arch" type="xml">
         <field name="partner_bank_id" position="after">
             <field name="priority"/>
+            <field name="local_instrument" invisible="1"/>
         </field>
     </field>
 </record>