[FIX] base_report_to_printer: error printing in external network.

Error code: 1030, 'The printer or class does not exist.')".
An explicit call to `setServer` and `setPort` fixed the issue.
(see https://github.com/OpenPrinting/pycups/issues/30)

Also, added serve_id to printer views

base_report_to_printer/models/printing_server.py

@@ -36,6 +36,13 @@ class PrintingServer(models.Model):
         self.ensure_one()
         connection = False
         try:
+            # Sometimes connecting to printer servers outside of the local network
+            # can result in a weird error "cups.IPPError: (1030, 'The printer
+            # or class does not exist.')".
+            # An explicit call to `setServer` and `setPort` fixed the issue.
+            # (see https://github.com/OpenPrinting/pycups/issues/30)
+            cups.setServer(self.address)
+            cups.setPort(self.port)
             connection = cups.Connection(host=self.address, port=self.port)
         except Exception:
             message = _(

base_report_to_printer/views/printing_printer.xml

@@ -47,6 +47,7 @@
                     </div>
                     <group name="name">
                         <field name="system_name" />
+                        <field name="server_id" />
                     </group>
                     <group col="4" colspan="4" name="default">
                         <field name="default" />
@@ -100,6 +101,7 @@
                 <field name="default" />
                 <field name="name" />
                 <field name="system_name" />
+                <field name="server_id" />
                 <field name="status" />
             </tree>
         </field>