fix driver to new interface working in workers

README.md

@@ -23,7 +23,7 @@ The easiest way to set this up, is using cups and configure a RAW printer device
 ## Installation
 
 > [!IMPORTANT]
-> This plugin is only compatible with InvenTree>=0.14 because this uses the new label printer driver interface introduced with [inventree/InvenTree#4824](https://github.com/inventree/InvenTree/pull/4824).
+> This plugin is only compatible with InvenTree>=0.16 because this uses the new label printer driver interface introduced with [inventree/InvenTree#4824](https://github.com/inventree/InvenTree/pull/4824) and was fixed with 0.16 to work inside of workers.
 
 Goto "Admin Center > Plugins > Install Plugin" and enter `inventree-dymo-plugin` as package name.
 

inventree_dymo/InvenTreeDymoPlugin.py

@@ -1,13 +1,12 @@
 import socket
+from django.db import models
 from django.db.models.query import QuerySet
-from rest_framework.request import Request
 from django.utils.translation import gettext_lazy as _
 from django.core.validators import MinValueValidator, MaxValueValidator
 
 from plugin import InvenTreePlugin
-from plugin.base.label.mixins import LabelItemType
 from plugin.machine.machine_types import LabelPrinterBaseDriver, LabelPrinterMachine
-from label.models import LabelTemplate
+from report.models import LabelTemplate
 
 from .version import DYMO_PLUGIN_VERSION
 from .dymo import DymoLabel, RoleSelect, PrintDensity
@@ -19,7 +18,8 @@ class InvenTreeDymoPlugin(InvenTreePlugin):
     VERSION = DYMO_PLUGIN_VERSION
 
     # Machine driver registry is only available in InvenTree 0.14.0 and later
-    MIN_VERSION = "0.14.0"
+    # Machine driver interface was fixed with 0.16.0 to work inside of inventree workers
+    MIN_VERSION = "0.16.0"
 
     TITLE = "InvenTree Dymo Plugin"
     SLUG = "inventree-dymo-plugin"
@@ -94,7 +94,7 @@ def __init__(self, *args, **kwargs):
 
         super().__init__(*args, **kwargs)
 
-    def print_labels(self, machine: LabelPrinterMachine, label: LabelTemplate, items: QuerySet[LabelItemType], request: Request, **kwargs):
+    def print_labels(self, machine: LabelPrinterMachine, label: LabelTemplate, items: QuerySet[models.Model], **kwargs):
         """Print labels using a Dymo label printer."""
         printing_options = kwargs.get('printing_options', {})
 
@@ -109,12 +109,16 @@ def print_labels(self, machine: LabelPrinterMachine, label: LabelTemplate, items
 
         for item in items:
             dpi = {"TEXT": 300, "GRAPHIC": 600}[dymo_label.mode]
-            png = self.render_to_png(label, item, request, dpi=dpi)
+            png = self.render_to_png(label, item, dpi=dpi)
 
             for _copies in range(printing_options.get('copies', 1)):
                 dymo_label.add_label(png)
 
         data = dymo_label.get_data()
+        self.send_data(machine, data)
+
+    def send_data(self, machine: LabelPrinterMachine, data: bytearray):
+        machine.set_status(LabelPrinterMachine.MACHINE_STATUS.UNKNOWN)
 
         ip_addr = machine.get_setting('SERVER', 'D')
         port = machine.get_setting('PORT', 'D')
@@ -125,4 +129,5 @@ def print_labels(self, machine: LabelPrinterMachine, label: LabelTemplate, items
             print_socket.send(data)
             print_socket.close()
         except Exception as e:
-            raise ConnectionError(f"Error connection to network printer: {e}")
+            machine.set_status(LabelPrinterMachine.MACHINE_STATUS.DISCONNECTED)
+            machine.handle_error(f"Error connecting to network printer: {e}")

inventree_dymo/dymo.py

@@ -286,7 +286,7 @@ def dump_label(self, png: Image.Image):
         self.pb.short_form_feed()
 
 
-class DymoTape(DymoLabel):
+class DymoTape(DymoLabelBase):
     def __init__(
         self,
         *,

inventree_dymo/version.py

@@ -1 +1 @@
-DYMO_PLUGIN_VERSION = "0.1.0"
+DYMO_PLUGIN_VERSION = "1.0.0"