fix minor issues with corrupted data

catalog/book/models.py

@@ -137,7 +137,7 @@ class Edition(Item):
         "binding",
         "pages",
         "price",
-        "brief",
+        # "brief",
         "localized_description",
         "contents",
     ]

catalog/common/models.py

@@ -636,7 +636,7 @@ class Item(PolymorphicModel):
 
     @property
     def brief_description(self):
-        return self.display_description[:155]
+        return (self.display_description or "")[:155]
 
     @classmethod
     def get_by_url(cls, url_or_b62: str, resolve_merge=False) -> "Self | None":

catalog/management/commands/catalog.py

@@ -80,6 +80,8 @@ class Command(BaseCommand):
                 lang = i.metadata.get("language")
                 if isinstance(lang, str) and lang:
                     i.metadata["language"] = [lang]
+            if i.__class__ == Podcast and i.metadata.get("host", None) is None:
+                i.metadata["host"] = i.metadata.get("hosts", [])
             i.localized_title = uniq(localized_title)
             localized_desc = [{"lang": detect_language(i.brief), "text": i.brief}]
             i.localized_description = localized_desc

catalog/search/typesense.py

@@ -165,6 +165,7 @@ class Indexer:
                 "type": "string[]",
             },
             {"name": "artist", "optional": True, "locale": "zh", "type": "string[]"},
+            {"name": "host", "optional": True, "locale": "zh", "type": "string[]"},
             {"name": "company", "optional": True, "locale": "zh", "type": "string[]"},
             {"name": "developer", "optional": True, "locale": "zh", "type": "string[]"},
             {"name": "publisher", "optional": True, "locale": "zh", "type": "string[]"},