update source code

backend/schemas/main_model.py

@@ -0,0 +1,27 @@
+from typing import ClassVar, TypeVar
+from humps import camelize
+from enum import Enum
+from pydantic import BaseModel, ConfigDict
+
+T = TypeVar("T", bound=BaseModel)
+
+class SearchType(Enum):
+    fuzzy = "fuzzy"
+    tokenized = "tokenized"
+
+class MainModel(BaseModel):
+  _searchable_properties: ClassVar[list[str]] = []
+  """
+    Searchable properties for the search API.
+    The first property will be used for sorting (order_by)
+    """
+  model_config = ConfigDict(alias_generator=camelize, populate_by_name=True)
+
+  def cast(self, cls: type[T], **kwargs) -> T:
+    """
+    Cast the current model to another with additional arguments. Useful for
+    transforming DTOs into models that are saved to a database
+    """
+    create_data = {field: getattr(self, field) for field in self.__fields__ if field in cls.__fields__}
+    create_data.update(kwargs or {})
+    return cls(**create_data)