Use single character width for ellipsis entity

Co-authored-by: adionit7 <adionit7@users.noreply.github.com>

.github/ISSUE_TEMPLATE/03-performance.yaml

@@ -0,0 +1,43 @@
+---
+name: 🏁 Performance
+type: Performance
+description: An opportunity to improve application performance
+labels: ["netbox", "type: performance", "status: needs triage"]
+body:
+  - type: input
+    attributes:
+      label: NetBox Version
+      description: What version of NetBox are you currently running?
+      placeholder: v4.5.1
+    validations:
+      required: true
+  - type: dropdown
+    attributes:
+      label: Python Version
+      description: What version of Python are you currently running?
+      options:
+        - "3.12"
+        - "3.13"
+        - "3.14"
+    validations:
+      required: true
+  - type: checkboxes
+    attributes:
+      label: Area(s) of Concern
+      description: Which application interface(s) are affected?
+      options:
+        - label: User Interface
+        - label: REST API
+        - label: GraphQL API
+        - label: Python ORM
+        - label: Other
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Details
+      description: >
+        Describe in detail the operations being performed and the indications of a performance issue.
+        Include any relevant testing parameters, benchmarks, and expected results.
+    validations:
+      required: true

netbox/extras/tables/tables.py

@@ -43,7 +43,7 @@ IMAGEATTACHMENT_IMAGE = """
   <a href="{{ record.image.url }}" target="_blank" class="image-preview" data-bs-placement="top">
     <i class="mdi mdi-image"></i></a>
 {% endif %}
-<a href="{{ record.get_absolute_url }}">{{ record }}</a>
+<a href="{{ record.get_absolute_url }}">{{ record.filename|truncate_middle:16 }}</a>
 """
 
 NOTIFICATION_ICON = """

netbox/extras/tests/test_models.py

@@ -6,7 +6,7 @@ from django.core.files.uploadedfile import SimpleUploadedFile
 from django.forms import ValidationError
 from django.test import tag, TestCase
 
-from core.models import DataSource, ObjectType
+from core.models import AutoSyncRecord, DataSource, ObjectType
 from dcim.models import Device, DeviceRole, DeviceType, Location, Manufacturer, Platform, Region, Site, SiteGroup
 from extras.models import ConfigContext, ConfigContextProfile, ConfigTemplate, ImageAttachment, Tag, TaggedItem
 from tenancy.models import Tenant, TenantGroup
@@ -754,3 +754,53 @@ class ConfigTemplateTest(TestCase):
     @tag('regression')
     def test_config_template_with_data_source_nested_templates(self):
         self.assertEqual(self.BASE_TEMPLATE, self.main_config_template.render({}))
+
+    @tag('regression')
+    def test_autosyncrecord_cleanup_on_detach(self):
+        """Test that AutoSyncRecord is deleted when detaching from DataSource."""
+        with tempfile.TemporaryDirectory() as temp_dir:
+            templates_dir = Path(temp_dir) / "templates"
+            templates_dir.mkdir(parents=True, exist_ok=True)
+
+            self._create_template_file(templates_dir, 'test.j2', 'Test content')
+
+            data_source = DataSource(
+                name="Test DataSource for Detach",
+                type="local",
+                source_url=str(templates_dir),
+            )
+            data_source.save()
+            data_source.sync()
+
+            data_file = data_source.datafiles.filter(path__endswith='test.j2').first()
+
+            # Create a ConfigTemplate with data_file and auto_sync_enabled
+            config_template = ConfigTemplate(
+                name="TestTemplateForDetach",
+                data_file=data_file,
+                auto_sync_enabled=True
+            )
+            config_template.clean()
+            config_template.save()
+
+            # Verify AutoSyncRecord was created
+            object_type = ObjectType.objects.get_for_model(ConfigTemplate)
+            autosync_records = AutoSyncRecord.objects.filter(
+                object_type=object_type,
+                object_id=config_template.pk
+            )
+            self.assertEqual(autosync_records.count(), 1, "AutoSyncRecord should be created")
+
+            # Detach from DataSource
+            config_template.data_file = None
+            config_template.data_source = None
+            config_template.auto_sync_enabled = False
+            config_template.clean()
+            config_template.save()
+
+            # Verify AutoSyncRecord was deleted
+            autosync_records = AutoSyncRecord.objects.filter(
+                object_type=object_type,
+                object_id=config_template.pk
+            )
+            self.assertEqual(autosync_records.count(), 0, "AutoSyncRecord should be deleted after detaching")

netbox/netbox/models/features.py

@@ -569,7 +569,6 @@ class SyncedDataMixin(models.Model):
             )
         else:
             AutoSyncRecord.objects.filter(
-                datafile=self.data_file,
                 object_type=object_type,
                 object_id=self.pk
             ).delete()
@@ -582,7 +581,6 @@ class SyncedDataMixin(models.Model):
         # Delete AutoSyncRecord
         object_type = ObjectType.objects.get_for_model(self)
         AutoSyncRecord.objects.filter(
-            datafile=self.data_file,
             object_type=object_type,
             object_id=self.pk
         ).delete()

netbox/utilities/templatetags/builtins/filters.py

@@ -252,3 +252,16 @@ def isodatetime(value, spec='seconds'):
     else:
         return ''
     return mark_safe(f'<span title="{naturaltime(value)}">{text}</span>')
+
+
+@register.filter
+def truncate_middle(value, length):
+    if len(value) <= length:
+        return value
+
+    # Calculate split points for the two parts
+    half_len = (length - 1) // 2  # 1 for the ellipsis
+    first_part = value[:half_len]
+    second_part = value[len(value) - (length - 1 - half_len):]
+
+    return mark_safe(f"{first_part}&hellip;{second_part}")