🐛 Fix separation of schemas with nested models introduced in 0.119.0 (#14246)

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Sebastián Ramírez 2025-10-29 10:09:30 -03:00 committed by GitHub
parent 7132a69046
commit 6a657f360d
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3 changed files with 229 additions and 17 deletions

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@ -207,11 +207,31 @@ def get_definitions(
override_mode: Union[Literal["validation"], None] = (
None if separate_input_output_schemas else "validation"
)
flat_models = get_flat_models_from_fields(fields, known_models=set())
flat_model_fields = [
ModelField(field_info=FieldInfo(annotation=model), name=model.__name__)
for model in flat_models
validation_fields = [field for field in fields if field.mode == "validation"]
serialization_fields = [field for field in fields if field.mode == "serialization"]
flat_validation_models = get_flat_models_from_fields(
validation_fields, known_models=set()
)
flat_serialization_models = get_flat_models_from_fields(
serialization_fields, known_models=set()
)
flat_validation_model_fields = [
ModelField(
field_info=FieldInfo(annotation=model),
name=model.__name__,
mode="validation",
)
for model in flat_validation_models
]
flat_serialization_model_fields = [
ModelField(
field_info=FieldInfo(annotation=model),
name=model.__name__,
mode="serialization",
)
for model in flat_serialization_models
]
flat_model_fields = flat_validation_model_fields + flat_serialization_model_fields
input_types = {f.type_ for f in fields}
unique_flat_model_fields = {
f for f in flat_model_fields if f.type_ not in input_types

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@ -0,0 +1,203 @@
# Test with parts from, and to verify the report in:
# https://github.com/fastapi/fastapi/discussions/14177
# Made an issue in:
# https://github.com/fastapi/fastapi/issues/14247
from enum import Enum
from typing import List
from fastapi import FastAPI
from fastapi.testclient import TestClient
from inline_snapshot import snapshot
from pydantic import BaseModel, Field
from tests.utils import pydantic_snapshot
class MessageEventType(str, Enum):
alpha = "alpha"
beta = "beta"
class MessageEvent(BaseModel):
event_type: MessageEventType = Field(default=MessageEventType.alpha)
output: str
class MessageOutput(BaseModel):
body: str = ""
events: List[MessageEvent] = []
class Message(BaseModel):
input: str
output: MessageOutput
app = FastAPI(title="Minimal FastAPI App", version="1.0.0")
@app.post("/messages", response_model=Message)
async def create_message(input_message: str) -> Message:
return Message(
input=input_message,
output=MessageOutput(body=f"Processed: {input_message}"),
)
client = TestClient(app)
def test_create_message():
response = client.post("/messages", params={"input_message": "Hello"})
assert response.status_code == 200, response.text
assert response.json() == {
"input": "Hello",
"output": {"body": "Processed: Hello", "events": []},
}
def test_openapi_schema():
response = client.get("/openapi.json")
assert response.status_code == 200, response.text
assert response.json() == snapshot(
{
"openapi": "3.1.0",
"info": {"title": "Minimal FastAPI App", "version": "1.0.0"},
"paths": {
"/messages": {
"post": {
"summary": "Create Message",
"operationId": "create_message_messages_post",
"parameters": [
{
"name": "input_message",
"in": "query",
"required": True,
"schema": {"type": "string", "title": "Input Message"},
}
],
"responses": {
"200": {
"description": "Successful Response",
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/Message"
}
}
},
},
"422": {
"description": "Validation Error",
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/HTTPValidationError"
}
}
},
},
},
}
}
},
"components": {
"schemas": {
"HTTPValidationError": {
"properties": {
"detail": {
"items": {
"$ref": "#/components/schemas/ValidationError"
},
"type": "array",
"title": "Detail",
}
},
"type": "object",
"title": "HTTPValidationError",
},
"Message": {
"properties": {
"input": {"type": "string", "title": "Input"},
"output": {"$ref": "#/components/schemas/MessageOutput"},
},
"type": "object",
"required": ["input", "output"],
"title": "Message",
},
"MessageEvent": {
"properties": {
"event_type": pydantic_snapshot(
v2=snapshot(
{
"$ref": "#/components/schemas/MessageEventType",
"default": "alpha",
}
),
v1=snapshot(
{
"allOf": [
{
"$ref": "#/components/schemas/MessageEventType"
}
],
"default": "alpha",
}
),
),
"output": {"type": "string", "title": "Output"},
},
"type": "object",
"required": ["output"],
"title": "MessageEvent",
},
"MessageEventType": pydantic_snapshot(
v2=snapshot(
{
"type": "string",
"enum": ["alpha", "beta"],
"title": "MessageEventType",
}
),
v1=snapshot(
{
"type": "string",
"enum": ["alpha", "beta"],
"title": "MessageEventType",
"description": "An enumeration.",
}
),
),
"MessageOutput": {
"properties": {
"body": {"type": "string", "title": "Body", "default": ""},
"events": {
"items": {"$ref": "#/components/schemas/MessageEvent"},
"type": "array",
"title": "Events",
"default": [],
},
},
"type": "object",
"title": "MessageOutput",
},
"ValidationError": {
"properties": {
"loc": {
"items": {
"anyOf": [{"type": "string"}, {"type": "integer"}]
},
"type": "array",
"title": "Location",
},
"msg": {"type": "string", "title": "Message"},
"type": {"type": "string", "title": "Error Type"},
},
"type": "object",
"required": ["loc", "msg", "type"],
"title": "ValidationError",
},
}
},
}
)

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@ -1028,17 +1028,6 @@ def test_openapi_schema():
"type": "object",
"title": "HTTPValidationError",
},
"SubItem-Output": {
"properties": {
"new_sub_name": {
"type": "string",
"title": "New Sub Name",
}
},
"type": "object",
"required": ["new_sub_name"],
"title": "SubItem",
},
"ValidationError": {
"properties": {
"loc": {
@ -1113,11 +1102,11 @@ def test_openapi_schema():
"title": "New Description",
},
"new_sub": {
"$ref": "#/components/schemas/SubItem-Output"
"$ref": "#/components/schemas/tests__test_pydantic_v1_v2_multifile__modelsv2__SubItem"
},
"new_multi": {
"items": {
"$ref": "#/components/schemas/SubItem-Output"
"$ref": "#/components/schemas/tests__test_pydantic_v1_v2_multifile__modelsv2__SubItem"
},
"type": "array",
"title": "New Multi",