docs: Config documents & i18n supports (#2365)

packages/dbgpt-ext/src/dbgpt_ext/datasource/rdbms/conn_duckdb.py

@@ -26,7 +26,7 @@ class DuckDbConnectorParameters(BaseDatasourceParameters):
     """DuckDB connection parameters."""
 
     __type__ = "duckdb"
-    path: str = field(metadata={"description": _("Path to the DuckDB file.")})
+    path: str = field(metadata={"help": _("Path to the DuckDB file.")})
     driver: str = field(
         default="duckdb",
         metadata={

packages/dbgpt-ext/src/dbgpt_ext/datasource/rdbms/conn_sqlite.py

@@ -41,15 +41,19 @@ class SQLiteConnectorParameters(BaseDatasourceParameters):
 
     path: str = dataclasses.field(
         metadata={
-            "help": "SQLite database file path. Use ':memory:' for in-memory database",
+            "help": _(
+                "SQLite database file path. Use ':memory:' for in-memory database"
+            ),
             "required": True,
         }
     )
     check_same_thread: bool = dataclasses.field(
         default=False,
         metadata={
-            "help": "Check same thread or not, default is False. Set False to allow "
-            "sharing connection across threads"
+            "help": _(
+                "Check same thread or not, default is False. Set False to allow "
+                "sharing connection across threads"
+            )
         },
     )
 

packages/dbgpt-ext/src/dbgpt_ext/datasource/rdbms/conn_vertica.py

@@ -2,7 +2,7 @@
 
 import logging
 from dataclasses import dataclass, field
-from typing import Any, Dict, Iterable, List, Optional, Tuple, cast
+from typing import Any, Dict, Iterable, List, Optional, Tuple, Type, cast
 from urllib.parse import quote
 from urllib.parse import quote_plus as urlquote
 
@@ -58,6 +58,11 @@ class VerticaConnector(RDBMSConnector):
     db_type = "vertica"
     db_dialect = "vertica"
 
+    @classmethod
+    def param_class(cls) -> Type[VerticaParameters]:
+        """Return the parameter class."""
+        return VerticaParameters
+
     @classmethod
     def from_uri_db(
         cls,