feat: align with datatracker StreamName (#162)

rpc/dt_v1_api_utils.py

@@ -12,10 +12,10 @@ class NoSuchSlug(Exception):
     pass
 
 
-def datatracker_stdlevelname(slug: str) -> tuple[str, str, str]:
+def datatracker_name(namemodel: str, slug: str) -> tuple[str, str, str]:
     try:
         response = requests.get(
-            f"{settings.DATATRACKER_API_V1_BASE}/name/stdlevelname?fmt=json&slug={slug}"
+            f"{settings.DATATRACKER_API_V1_BASE}/name/{namemodel}?fmt=json&slug={slug}"
         )
     except requests.exceptions.ConnectionError:
         raise DatatrackerFetchFailure
@@ -32,3 +32,11 @@ def datatracker_stdlevelname(slug: str) -> tuple[str, str, str]:
     else:
         obj = api_response["objects"][0]
         return (obj["slug"], obj["name"], obj["desc"])
+
+
+def datatracker_stdlevelname(slug: str) -> tuple[str, str, str]:
+    return datatracker_name("stdlevelname", slug)
+
+
+def datatracker_streamname(slug: str) -> tuple[str, str, str]:
+    return datatracker_name("streamname", slug)

rpc/models.py

@@ -14,6 +14,7 @@
     DatatrackerFetchFailure,
     NoSuchSlug,
     datatracker_stdlevelname,
+    datatracker_streamname,
 )
 from simple_history.models import HistoricalRecords
 
@@ -184,9 +185,19 @@ class StdLevelName(Name):
 class TlpBoilerplateChoiceName(Name):
     pass
 
+class StreamNameManager(models.Manager):
+    def from_slug(self, slug):
+        if self.filter(slug=slug).exists():
+            return self.get(slug=slug)
+        else:
+            try:
+                _, name, desc = datatracker_streamname(slug)
+                return self.create(slug=slug, name=name, desc=desc)
+            except (DatatrackerFetchFailure, NoSuchSlug):
+                raise self.model.DoesNotExist
 
 class StreamName(Name):
-    pass
+    objects = StreamNameManager()
 
 
 class DocRelationshipName(Name):