Fixed beta content paths breaking version alert replacement regex (#2008) (#2009)

Author: daveoconnor

libraries/mixins.py

@@ -29,6 +29,7 @@ class VersionAlertMixin:
     """Mixin to selectively add a version alert to the context"""
 
     def get_context_data(self, **kwargs):
+        # todo: add units tests for this mixin, for standard paths and betas
         context = super().get_context_data(**kwargs)
         url_name = self.request.resolver_match.url_name
         if url_name in {"libraries", "releases-most-recent"}:
@@ -39,10 +40,22 @@ def get_context_data(self, **kwargs):
             alert_visible = not current_version_kwargs.get("content_path").startswith(
                 LATEST_RELEASE_URL_PATH_STR
             )
+            # TODO: this hack is here because the BoostVersionMixin only handles the
+            #  libraries format (boost-1-90-0-beta-1) for betas, while this path uses
+            #  1_90_beta1 so we need to retrieve and set the selected_version
+            #  specifically for this use, db slug = "boost-1-90-0-beta1"
+            # path_slug = 1_90_beta1
+            path_slug = current_version_kwargs.get("content_path").split("/")[0]
+            if path_slug == LATEST_RELEASE_URL_PATH_STR:
+                context["selected_version"] = Version.objects.most_recent()
+            else:
+                version_slug = f"boost-{path_slug.replace('_', '-')}"
+                context["selected_version"] = Version.objects.get(slug=version_slug)
+            # end of hack
             current_version_kwargs.update(
                 {
                     "content_path": re.sub(
-                        r"([_0-9]+|master|develop)/(\S+)",
+                        r"([_0-9a-zA-Z]+|master|develop)/(\S+)",
                         rf"{LATEST_RELEASE_URL_PATH_STR}/\2",
                         current_version_kwargs.get("content_path"),
                     )