feat: Se añade Tipo Usb

printer.py

@@ -1,13 +1,32 @@
 from trytond.model import Model, ModelSQL, ModelView, fields
+from trytond.pyson import Eval
 
 
 
 class Device(Model):
     'Devices'
     __name__ = 'sale_device'
+
     name = fields.Char("Name")
-    ip_address = fields.Char('IP Address or Network', help='IPv4 or IPv6 IP address or network. Valid values include: 192.168.0.26 or 192.168.0.0/24')
-        
+    type_ = fields.Selection([('usb', "Usb"),
+                              ('network', "Network")], "Type")    
+    ip_address = fields.Char('IP Address or Network',
+                             states={'required': Eval('type_') == 'network',
+                                     'invisible': Eval('type_') != 'network'},
+                             help='IPv4 or IPv6 IP address or network. Valid values include: 192.168.0.26 or 192.168.0.0/24')
+    idVendor = fields.Char('idVendor', states={
+        'required': Eval('type_') == 'usb',
+        'invisible': Eval('type_') != 'usb',
+    })
+    idProduct = fields.Char('idProduct', states={
+        'required': Eval('type_') == 'usb',
+        'invisible': Eval('type_') != 'usb',
+    })
+
+    @classmethod
+    def default_type(cls):
+        return 'network'
+    
 class Printer(Device, ModelSQL, ModelView):
     'Printer'
     __name__ = 'sale.printer'