Closes #4360: Drop support for the Django template language in export templates

docs/release-notes/version-2.10.md

@@ -4,4 +4,9 @@
 
 ### Other Changes
 
+* [#4360](https://github.com/netbox-community/netbox/issues/4360) - Remove support for the Django template language from export templates
 * [#4941](https://github.com/netbox-community/netbox/issues/4941) - `commit` argument is now required argument in a custom script's `run()` method
+
+### REST API Changes
+
+* extras.ExportTemplate: The `template_language` field has been removed

netbox/extras/admin.py

@@ -198,11 +198,6 @@ class ExportTemplateForm(forms.ModelForm):
     class Meta:
         model = ExportTemplate
         exclude = []
-        help_texts = {
-            'template_language': "<strong>Warning:</strong> Support for Django templating will be dropped in NetBox "
-                                 "v2.10. <a href=\"https://jinja.palletsprojects.com\">Jinja2</a> is strongly "
-                                 "recommended."
-        }
 
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
@@ -219,7 +214,7 @@ class ExportTemplateAdmin(admin.ModelAdmin):
             'fields': ('content_type', 'name', 'description', 'mime_type', 'file_extension')
         }),
         ('Content', {
-            'fields': ('template_language', 'template_code'),
+            'fields': ('template_code',),
             'classes': ('monospace',)
         })
     )

netbox/extras/api/serializers.py

@@ -71,17 +71,10 @@ class ExportTemplateSerializer(ValidatedModelSerializer):
     content_type = ContentTypeField(
         queryset=ContentType.objects.filter(FeatureQuery('export_templates').get_query()),
     )
-    template_language = ChoiceField(
-        choices=TemplateLanguageChoices,
-        default=TemplateLanguageChoices.LANGUAGE_JINJA2
-    )
 
     class Meta:
         model = ExportTemplate
-        fields = [
-            'id', 'url', 'content_type', 'name', 'description', 'template_language', 'template_code', 'mime_type',
-            'file_extension',
-        ]
+        fields = ['id', 'url', 'content_type', 'name', 'description', 'template_code', 'mime_type', 'file_extension']
 
 
 #

netbox/extras/filters.py

@@ -101,7 +101,7 @@ class ExportTemplateFilterSet(BaseFilterSet):
 
     class Meta:
         model = ExportTemplate
-        fields = ['id', 'content_type', 'name', 'template_language']
+        fields = ['id', 'content_type', 'name']
 
 
 class TagFilterSet(BaseFilterSet):

netbox/extras/migrations/0048_exporttemplate_remove_template_language.py

@@ -0,0 +1,17 @@
+# Generated by Django 3.1 on 2020-08-21 15:13
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('extras', '0047_tag_ordering'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='exporttemplate',
+            name='template_language',
+        ),
+    ]

netbox/extras/models/models.py

@@ -283,11 +283,6 @@ class ExportTemplate(models.Model):
         max_length=200,
         blank=True
     )
-    template_language = models.CharField(
-        max_length=50,
-        choices=TemplateLanguageChoices,
-        default=TemplateLanguageChoices.LANGUAGE_JINJA2
-    )
     template_code = models.TextField(
         help_text='The list of objects being exported is passed as a context variable named <code>queryset</code>.'
     )
@@ -321,16 +316,7 @@ class ExportTemplate(models.Model):
         context = {
             'queryset': queryset
         }
-
-        if self.template_language == TemplateLanguageChoices.LANGUAGE_DJANGO:
-            template = Template(self.template_code)
-            output = template.render(Context(context))
-
-        elif self.template_language == TemplateLanguageChoices.LANGUAGE_JINJA2:
-            output = render_jinja2(self.template_code, context)
-
-        else:
-            return None
+        output = render_jinja2(self.template_code, context)
 
         # Replace CRLF-style line terminators
         output = output.replace('\r\n', '\n')

netbox/extras/tests/test_filters.py

@@ -55,9 +55,9 @@ class ExportTemplateTestCase(TestCase):
         content_types = ContentType.objects.filter(model__in=['site', 'rack', 'device'])
 
         export_templates = (
-            ExportTemplate(name='Export Template 1', content_type=content_types[0], template_language=TemplateLanguageChoices.LANGUAGE_DJANGO, template_code='TESTING'),
-            ExportTemplate(name='Export Template 2', content_type=content_types[1], template_language=TemplateLanguageChoices.LANGUAGE_JINJA2, template_code='TESTING'),
-            ExportTemplate(name='Export Template 3', content_type=content_types[2], template_language=TemplateLanguageChoices.LANGUAGE_JINJA2, template_code='TESTING'),
+            ExportTemplate(name='Export Template 1', content_type=content_types[0], template_code='TESTING'),
+            ExportTemplate(name='Export Template 2', content_type=content_types[1], template_code='TESTING'),
+            ExportTemplate(name='Export Template 3', content_type=content_types[2], template_code='TESTING'),
         )
         ExportTemplate.objects.bulk_create(export_templates)
 
@@ -73,10 +73,6 @@ class ExportTemplateTestCase(TestCase):
         params = {'content_type': ContentType.objects.get(model='site').pk}
         self.assertEqual(self.filterset(params, self.queryset).qs.count(), 1)
 
-    def test_template_language(self):
-        params = {'template_language': TemplateLanguageChoices.LANGUAGE_JINJA2}
-        self.assertEqual(self.filterset(params, self.queryset).qs.count(), 2)
-
 
 class ConfigContextTestCase(TestCase):
     queryset = ConfigContext.objects.all()