adds model_name option in ConfigDict

pydantic/_internal/_config.py

@@ -28,6 +28,7 @@ class ConfigWrapper:
     # all annotations are copied directly from ConfigDict, and should be kept up to date, a test will fail if they
     # stop matching
     title: str | None
+    model_name: str | None
     str_to_lower: bool
     str_to_upper: bool
     str_strip_whitespace: bool
@@ -165,6 +166,7 @@ def __repr__(self):
 
 config_defaults = ConfigDict(
     title=None,
+    model_name=None,
     str_to_lower=False,
     str_to_upper=False,
     str_strip_whitespace=False,

pydantic/_internal/_model_construction.py

@@ -93,6 +93,7 @@ def __new__(
             base_field_names, class_vars, base_private_attributes = mcs._collect_bases_data(bases)
 
             config_wrapper = ConfigWrapper.for_model(bases, namespace, kwargs)
+            cls_name = config_wrapper.config_dict.get("model_name") or cls_name
             namespace['model_config'] = config_wrapper.config_dict
             private_attributes = inspect_namespace(
                 namespace, config_wrapper.ignored_types, class_vars, base_field_names

pydantic/config.py

@@ -128,6 +128,7 @@ class without an annotation and has a type that is not in this tuple (or otherwi
     """
 
     title: str | None
+    model_name: str | None
     str_to_lower: bool
     str_to_upper: bool
     str_strip_whitespace: bool

tests/test_config.py

@@ -23,6 +23,7 @@
 from pydantic.config import ConfigDict
 from pydantic.dataclasses import dataclass as pydantic_dataclass
 from pydantic.errors import PydanticUserError
+from pydantic.v1.schema import get_model_name_map
 
 if sys.version_info < (3, 9):
     from typing_extensions import Annotated
@@ -484,6 +485,33 @@ def test_invalid_config_keys():
     def my_function():
         pass
 
+def test_config_model_name() -> None:
+    CLIENT_USER_MODEL_NAME = "ClientUser"
+    BUSINESS_USER_MODEL_NAME = "BusinessUser"
+
+
+    def _get_business_user_class():
+        class User(BaseModel):
+            model_config = ConfigDict(model_name=BUSINESS_USER_MODEL_NAME)
+
+        return User
+
+    def _get_client_user_class():
+        class User(BaseModel):
+            model_config = ConfigDict(model_name=CLIENT_USER_MODEL_NAME)
+
+        return User
+
+    BusinessUser = _get_business_user_class()
+    ClientUser = _get_client_user_class()
+
+    name_map = get_model_name_map({BusinessUser, ClientUser})
+    assert name_map[BusinessUser] == BUSINESS_USER_MODEL_NAME
+    assert name_map[ClientUser] == CLIENT_USER_MODEL_NAME
+
+    assert BusinessUser().model_json_schema()["title"] == BUSINESS_USER_MODEL_NAME
+    assert ClientUser().model_json_schema()["title"] == CLIENT_USER_MODEL_NAME
+
 
 def test_multiple_inheritance_config():
     class Parent(BaseModel):