mirror of
https://github.com/open-webui/open-webui
synced 2024-11-16 13:40:55 +00:00
109 lines
3.0 KiB
Python
109 lines
3.0 KiB
Python
from ast import literal_eval
|
|
from typing import Any, Literal, Optional, Type
|
|
|
|
from pydantic import BaseModel, Field, create_model
|
|
|
|
|
|
def json_schema_to_model(tool_dict: dict[str, Any]) -> Type[BaseModel]:
|
|
"""
|
|
Converts a JSON schema to a Pydantic BaseModel class.
|
|
|
|
Args:
|
|
json_schema: The JSON schema to convert.
|
|
|
|
Returns:
|
|
A Pydantic BaseModel class.
|
|
"""
|
|
|
|
# Extract the model name from the schema title.
|
|
model_name = tool_dict["name"]
|
|
schema = tool_dict["parameters"]
|
|
|
|
# Extract the field definitions from the schema properties.
|
|
field_definitions = {
|
|
name: json_schema_to_pydantic_field(name, prop, schema.get("required", []))
|
|
for name, prop in schema.get("properties", {}).items()
|
|
}
|
|
|
|
# Create the BaseModel class using create_model().
|
|
return create_model(model_name, **field_definitions)
|
|
|
|
|
|
def json_schema_to_pydantic_field(
|
|
name: str, json_schema: dict[str, Any], required: list[str]
|
|
) -> Any:
|
|
"""
|
|
Converts a JSON schema property to a Pydantic field definition.
|
|
|
|
Args:
|
|
name: The field name.
|
|
json_schema: The JSON schema property.
|
|
|
|
Returns:
|
|
A Pydantic field definition.
|
|
"""
|
|
|
|
# Get the field type.
|
|
type_ = json_schema_to_pydantic_type(json_schema)
|
|
|
|
# Get the field description.
|
|
description = json_schema.get("description")
|
|
|
|
# Get the field examples.
|
|
examples = json_schema.get("examples")
|
|
|
|
# Create a Field object with the type, description, and examples.
|
|
# The 'required' flag will be set later when creating the model.
|
|
return (
|
|
type_,
|
|
Field(
|
|
description=description,
|
|
examples=examples,
|
|
default=... if name in required else None,
|
|
),
|
|
)
|
|
|
|
|
|
def json_schema_to_pydantic_type(json_schema: dict[str, Any]) -> Any:
|
|
"""
|
|
Converts a JSON schema type to a Pydantic type.
|
|
|
|
Args:
|
|
json_schema: The JSON schema to convert.
|
|
|
|
Returns:
|
|
A Pydantic type.
|
|
"""
|
|
|
|
type_ = json_schema.get("type")
|
|
|
|
if type_ == "string" or type_ == "str":
|
|
return str
|
|
elif type_ == "integer" or type_ == "int":
|
|
return int
|
|
elif type_ == "number" or type_ == "float":
|
|
return float
|
|
elif type_ == "boolean" or type_ == "bool":
|
|
return bool
|
|
elif type_ == "array" or type_ == "list":
|
|
items_schema = json_schema.get("items")
|
|
if items_schema:
|
|
item_type = json_schema_to_pydantic_type(items_schema)
|
|
return list[item_type]
|
|
else:
|
|
return list
|
|
elif type_ == "object":
|
|
# Handle nested models.
|
|
properties = json_schema.get("properties")
|
|
if properties:
|
|
nested_model = json_schema_to_model(json_schema)
|
|
return nested_model
|
|
else:
|
|
return dict
|
|
elif type_ == "null":
|
|
return Optional[Any] # Use Optional[Any] for nullable fields
|
|
elif type_ == "literal":
|
|
return Literal[literal_eval(json_schema.get("enum"))]
|
|
else:
|
|
raise ValueError(f"Unsupported JSON schema type: {type_}")
|