Fixed #1459 -- Fixed get_all_doc_versions template tag.

Regression in 7596a1f.

docs/fixtures/doc_test_fixtures.json

@@ -64,6 +64,19 @@
     "status": "f"
   }
 },
+{
+  "model": "releases.release",
+  "pk": "1.11",
+  "fields": {
+    "major": 1,
+    "is_lts": true,
+    "date": "2017-04-04",
+    "iteration": 0,
+    "micro": 0,
+    "minor": 11,
+    "status": "f"
+  }
+},
 {
   "fields": {
     "lang": "en",
@@ -153,5 +166,23 @@
   },
   "model": "docs.documentrelease",
   "pk": 14
+},
+{
+  "fields": {
+    "lang": "en",
+    "is_default": true,
+    "release": "1.11"
+  },
+  "model": "docs.documentrelease",
+  "pk": 15
+},
+{
+  "fields": {
+    "lang": "fr",
+    "is_default": false,
+    "release": "1.11"
+  },
+  "model": "docs.documentrelease",
+  "pk": 16
 }
 ]

docs/templatetags/docs.py

@@ -46,7 +46,7 @@ def get_all_doc_versions(context, url=None):
 
     # Save the versions into the context
     versions = sorted(get_version_tuple(x) for x in versions if x != "dev")
-    return [str(x) for x in versions] + ["dev"]
+    return [".".join([str(part) for part in x]) for x in versions] + ["dev"]
 
 
 class PygmentsNode(template.Node):

docs/tests.py

@@ -1,5 +1,7 @@
 import datetime
 import os
+import shutil
+import tempfile
 from http import HTTPStatus
 from operator import attrgetter
 from pathlib import Path
@@ -195,9 +197,17 @@ def test_empty_get(self):
 class TemplateTagTests(TestCase):
     fixtures = ["doc_test_fixtures"]
 
-    def test_get_all_doc_versions(self):
+    def test_get_all_doc_versions_empty(self):
         with self.assertNumQueries(1):
-            get_all_doc_versions({})
+            self.assertEqual(get_all_doc_versions({}), ["dev"])
+
+    def test_get_all_doc_versions(self):
+        tmp_docs_build_root = Path(tempfile.mkdtemp())
+        self.addCleanup(shutil.rmtree, tmp_docs_build_root)
+        os.makedirs(tmp_docs_build_root.joinpath("en", "1.8", "_built", "json"))
+        os.makedirs(tmp_docs_build_root.joinpath("en", "1.11", "_built", "json"))
+        with self.settings(DOCS_BUILD_ROOT=tmp_docs_build_root):
+            self.assertEqual(get_all_doc_versions({}), ["1.8", "1.11", "dev"])
 
     def test_pygments_template_tag(self):
         template = Template(