fix: add list handling (#2758)

lnbits/db.py

@@ -8,7 +8,7 @@ import time
 from contextlib import asynccontextmanager
 from datetime import datetime, timezone
 from enum import Enum
-from typing import Any, Generic, Literal, Optional, TypeVar, Union
+from typing import Any, Generic, Literal, Optional, TypeVar, Union, get_origin
 
 from loguru import logger
 from pydantic import BaseModel, ValidationError, root_validator
@@ -605,12 +605,17 @@ def model_to_dict(model: BaseModel) -> dict:
     _dict: dict = {}
     for key, value in model.dict().items():
         type_ = model.__fields__[key].type_
+        outertype_ = model.__fields__[key].outer_type_
         if model.__fields__[key].field_info.extra.get("no_database", False):
             continue
         if isinstance(value, datetime):
             _dict[key] = value.timestamp()
             continue
-        if type(type_) is type(BaseModel) or type_ is dict:
+        if (
+            type(type_) is type(BaseModel)
+            or type_ is dict
+            or get_origin(outertype_) is list
+        ):
             _dict[key] = json.dumps(value)
             continue
         _dict[key] = value
@@ -645,10 +650,12 @@ def dict_to_model(_row: dict, model: type[TModel]) -> TModel:
             logger.warning(f"Converting {key} to model `{model}`.")
             continue
         type_ = model.__fields__[key].type_
-        if isinstance(value, list):
+        outertype_ = model.__fields__[key].outer_type_
+        if get_origin(outertype_) is list:
+            _items = json.loads(value) if isinstance(value, str) else value
             _dict[key] = [
                 dict_to_submodel(type_, v) if issubclass(type_, BaseModel) else v
-                for v in value
+                for v in _items
             ]
             continue
         if issubclass(type_, bool):

tests/helpers.py

@@ -22,6 +22,7 @@ class DbTestModel2(BaseModel):
     label: str
     description: Optional[str] = None
     child: DbTestModel
+    child_list: list[DbTestModel]
 
 
 class DbTestModel3(BaseModel):
@@ -29,6 +30,8 @@ class DbTestModel3(BaseModel):
     user: str
     child: DbTestModel2
     active: bool = False
+    children: list[DbTestModel]
+    children_ids: list[int] = []
 
 
 def get_random_string(iterations: int = 10):

tests/unit/test_helpers_query.py

@@ -18,7 +18,10 @@ test_data = DbTestModel3(
         label="test",
         description="mydesc",
         child=DbTestModel(id=3, name="myname", value="myvalue"),
+        child_list=[DbTestModel(id=6, name="myname", value="myvalue")],
     ),
+    children=[DbTestModel(id=4, name="myname", value="myvalue")],
+    children_ids=[4, 1, 3],
     active=True,
 )
 
@@ -27,8 +30,9 @@ test_data = DbTestModel3(
 async def test_helpers_insert_query():
     q = insert_query("test_helpers_query", test_data)
     assert q == (
-        """INSERT INTO test_helpers_query ("id", "user", "child", "active") """
-        "VALUES (:id, :user, :child, :active)"
+        "INSERT INTO test_helpers_query "
+        """("id", "user", "child", "active", "children", "children_ids") """
+        "VALUES (:id, :user, :child, :active, :children, :children_ids)"
     )
 
 
@@ -37,7 +41,8 @@ async def test_helpers_update_query():
     q = update_query("test_helpers_query", test_data)
     assert q == (
         """UPDATE test_helpers_query SET "id" = :id, "user" = """
-        """:user, "child" = :child, "active" = :active WHERE id = :id"""
+        """:user, "child" = :child, "active" = :active, "children" = """
+        """:children, "children_ids" = :children_ids WHERE id = :id"""
     )
 
 
@@ -47,9 +52,17 @@ child_json = json.dumps(
         "label": "test",
         "description": "mydesc",
         "child": {"id": 3, "name": "myname", "value": "myvalue"},
+        "child_list": [{"id": 6, "name": "myname", "value": "myvalue"}],
     }
 )
-test_dict = {"id": 1, "user": "userid", "child": child_json, "active": True}
+test_dict = {
+    "id": 1,
+    "user": "userid",
+    "child": child_json,
+    "active": True,
+    "children": '[{"id": 4, "name": "myname", "value": "myvalue"}]',
+    "children_ids": "[4, 1, 3]",
+}
 
 
 @pytest.mark.asyncio