feat: Upgrade to Pydantic V2 (#3134)

* bumped pydantic

mealie/schema/response/pagination.py

@@ -1,10 +1,10 @@
 import enum
-from typing import Any, Generic, TypeVar
+from typing import Annotated, Any, Generic, TypeVar
 from urllib.parse import parse_qs, urlencode, urlsplit, urlunsplit
 
 from humps import camelize
-from pydantic import UUID4, BaseModel, validator
-from pydantic.generics import GenericModel
+from pydantic import UUID4, BaseModel, Field, field_validator
+from pydantic_core.core_schema import ValidationInfo
 
 from mealie.schema._mealie import MealieModel
 
@@ -22,12 +22,12 @@ class OrderByNullPosition(str, enum.Enum):
 
 
 class RecipeSearchQuery(MealieModel):
-    cookbook: UUID4 | str | None
+    cookbook: UUID4 | str | None = None
     require_all_categories: bool = False
     require_all_tags: bool = False
     require_all_tools: bool = False
     require_all_foods: bool = False
-    search: str | None
+    search: str | None = None
     _search_seed: str | None = None
 
 
@@ -38,23 +38,23 @@ class PaginationQuery(MealieModel):
     order_by_null_position: OrderByNullPosition | None = None
     order_direction: OrderDirection = OrderDirection.desc
     query_filter: str | None = None
-    pagination_seed: str | None = None
+    pagination_seed: Annotated[str | None, Field(validate_default=True)] = None
 
-    @validator("pagination_seed", always=True, pre=True)
-    def validate_randseed(cls, pagination_seed, values):
-        if values.get("order_by") == "random" and not pagination_seed:
+    @field_validator("pagination_seed", mode="before")
+    def validate_randseed(cls, pagination_seed, info: ValidationInfo):
+        if info.data.get("order_by") == "random" and not pagination_seed:
             raise ValueError("paginationSeed is required when orderBy is random")
         return pagination_seed
 
 
-class PaginationBase(GenericModel, Generic[DataT]):
+class PaginationBase(BaseModel, Generic[DataT]):
     page: int = 1
     per_page: int = 10
     total: int = 0
     total_pages: int = 0
     items: list[DataT]
-    next: str | None
-    previous: str | None
+    next: str | None = None
+    previous: str | None = None
 
     def _set_next(self, route: str, query_params: dict[str, Any]) -> None:
         if self.page >= self.total_pages:

mealie/schema/response/responses.py

@@ -14,7 +14,7 @@ class ErrorResponse(BaseModel):
         This method is an helper to create an object and convert to a dictionary
         in the same call, for use while providing details to a HTTPException
         """
-        return cls(message=message, exception=exception).dict()
+        return cls(message=message, exception=exception).model_dump()
 
 
 class SuccessResponse(BaseModel):
@@ -27,7 +27,7 @@ class SuccessResponse(BaseModel):
         This method is an helper to create an object and convert to a dictionary
         in the same call, for use while providing details to a HTTPException
         """
-        return cls(message=message).dict()
+        return cls(message=message).model_dump()
 
 
 class FileTokenResponse(MealieModel):
@@ -39,4 +39,4 @@ class FileTokenResponse(MealieModel):
         This method is an helper to create an object and convert to a dictionary
         in the same call, for use while providing details to a HTTPException
         """
-        return cls(file_token=token).dict()
+        return cls(file_token=token).model_dump()