Locale filter selector based on installed languages

README.md

@@ -99,7 +99,7 @@ tox
 ```
 
 or, you can run them for a specific environment `tox -e python3.8-django3.2-wagtail4.1` or specific test
-`tox -e python3.9-django3.2-wagtail4.1-sqlite wagtail_localize.tests.test_edit_translation.TestGetEditTranslationView`
+`tox -e python3.9-django3.2-wagtail4.1-sqlite -- wagtail_localize.tests.test_edit_translation.TestGetEditTranslationView`
 
 To run the test app interactively, use `tox -e interactive`, visit `http://127.0.0.1:8020/admin/` and log in with `admin`/`changeme`.
 

wagtail_localize/tests/test_translations_report.py

@@ -135,6 +135,17 @@ def test_filter_by_source_locale(self):
         self.assertNotIn(self.blog_index_translation, response.context["object_list"])
         self.assertNotIn(self.blog_post_translation, response.context["object_list"])
 
+    def test_filter_by_source_locale_all_options(self):
+        response = self.client.get(
+            reverse("wagtail_localize:translations_report") + "?source_locale=all"
+        )
+
+        self.assertIn(self.snippet_translation, response.context["object_list"])
+        self.assertIn(self.homepage_translation, response.context["object_list"])
+        self.assertIn(self.de_homepage_translation, response.context["object_list"])
+        self.assertIn(self.blog_index_translation, response.context["object_list"])
+        self.assertIn(self.blog_post_translation, response.context["object_list"])
+
     def test_filter_by_target_locale(self):
         response = self.client.get(
             reverse("wagtail_localize:translations_report") + "?target_locale=de"
@@ -145,3 +156,39 @@ def test_filter_by_target_locale(self):
         self.assertIn(self.de_homepage_translation, response.context["object_list"])
         self.assertNotIn(self.blog_index_translation, response.context["object_list"])
         self.assertNotIn(self.blog_post_translation, response.context["object_list"])
+
+    def test_filter_by_target_locale_all_options(self):
+        response = self.client.get(
+            reverse("wagtail_localize:translations_report") + "?target_locale=all"
+        )
+
+        self.assertIn(self.snippet_translation, response.context["object_list"])
+        self.assertIn(self.homepage_translation, response.context["object_list"])
+        self.assertIn(self.de_homepage_translation, response.context["object_list"])
+        self.assertIn(self.blog_index_translation, response.context["object_list"])
+        self.assertIn(self.blog_post_translation, response.context["object_list"])
+
+    def test_locale_filters_get_proper_choices(self):
+        response = self.client.get(reverse("wagtail_localize:translations_report"))
+
+        self.assertEqual(
+            list(response.context["filters"].form.fields["source_locale"].choices),
+            [
+                ("all", "All"),
+                ("en", "English"),
+                ("fr", "French"),
+                ("de", "German"),
+                ("es", "Spanish"),
+            ],
+        )
+
+        self.assertEqual(
+            list(response.context["filters"].form.fields["target_locale"].choices),
+            [
+                ("all", "All"),
+                ("en", "English"),
+                ("fr", "French"),
+                ("de", "German"),
+                ("es", "Spanish"),
+            ],
+        )

wagtail_localize/views/report.py

@@ -8,6 +8,7 @@
 from modelcluster.fields import ParentalKey
 from wagtail.admin.filters import WagtailFilterSet
 from wagtail.admin.views.reports import ReportView
+from wagtail.coreutils import get_content_languages
 from wagtail.models import get_translatable_models
 
 from wagtail_localize.models import Translation
@@ -98,9 +99,13 @@ def filter(self, qs, value):
         )
 
 
-class LocaleFilter(django_filters.CharFilter):
+def _get_locale_choices():
+    return list(get_content_languages().items())
+
+
+class LocaleFilter(django_filters.ChoiceFilter):
     def filter(self, qs, value):
-        if value in EMPTY_VALUES:
+        if not value or value == self.null_value:
             return qs
 
         return qs.filter(**{self.field_name + "__language_code": value})
@@ -111,8 +116,19 @@ class TranslationsReportFilterSet(WagtailFilterSet):
         field_name="source__specific_content_type", label=gettext_lazy("Content type")
     )
     source_title = SourceTitleFilter(label=gettext_lazy("Source title"))
-    source_locale = LocaleFilter(field_name="source__locale")
-    target_locale = LocaleFilter()
+    source_locale = LocaleFilter(
+        field_name="source__locale",
+        choices=_get_locale_choices,
+        empty_label=None,
+        null_label=gettext_lazy("All"),
+        null_value="all",
+    )
+    target_locale = LocaleFilter(
+        choices=_get_locale_choices,
+        empty_label=None,
+        null_label=gettext_lazy("All"),
+        null_value="all",
+    )
 
     class Meta:
         model = Translation