configuration - add erechnung default report

configuration.py

@@ -7,11 +7,15 @@
 from trytond.pool import PoolMeta, Pool
 from trytond.model import ModelSQL, fields
 from trytond.modules.company.model import CompanyValueMixin
+from .wizard_runreport import sel_edocument
 
 
 class Configuration(metaclass=PoolMeta):
     __name__ = 'account.configuration'
 
+    xrechn_default = fields.MultiValue(fields.Selection(
+        string='Export mode', selection=sel_edocument,
+        help='Pre-set export format for e-invoices.'))
     xrechn_zugferd_report = fields.MultiValue(fields.Many2One(
         model_name='ir.action.report',
         domain=[
@@ -25,11 +29,14 @@ class Configuration(metaclass=PoolMeta):
         """ select table
         """
         pool = Pool()
-        if field in {
-                'xrechn_zugferd_report'}:
+        if field in {'xrechn_zugferd_report', 'xrechn_default'}:
             return pool.get('account_invoice_xrechnung.configuration')
         return super(Configuration, cls).multivalue_model(field)
 
+    @classmethod
+    def default_xrechn_default(cls, **pattern):
+        return cls.multivalue_model('xrechn_default').default_xrechn_default()
+
 # end Configuration
 
 
@@ -37,6 +44,9 @@ class ConfigurationXRechnungexport(ModelSQL, CompanyValueMixin):
     "Account Configuration XRechnung Export"
     __name__ = 'account_invoice_xrechnung.configuration'
 
+    xrechn_default = fields.Selection(
+        string='Export mode', selection=sel_edocument,
+        help='Pre-set export format for e-invoices.')
     xrechn_zugferd_report = fields.Many2One(
         model_name='ir.action.report',
         string='ZUGFeRD-Report',
@@ -45,4 +55,8 @@ class ConfigurationXRechnungexport(ModelSQL, CompanyValueMixin):
             ('extension', '=', 'pdf')],
         help='Report that is to be used to generate the ZUGFeRD PDF.')
 
+    @classmethod
+    def default_xrechn_default(cls, **pattern):
+        return 'edocument.facturxext.invoice-ferd'
+
 # end ConfigurationXRechnungexport