0.21.5

What's Changed

• Added protect namespace to Pydantic v2 ConfigDict by @willarmiros in #1489
• Fix pydantic 2.2.1 RootModel cannot have extra_fields error by @i404788 in #1497
• Add missing default=None by @twoodwark in #1515
• Fix class Field generated when array with name fields with oneOf inside by @mjperrone in #1516

New Contributors

• @willarmiros made their first contribution in #1489
• @twoodwark made their first contribution in #1515
• @mjperrone made their first contribution in #1516

Full Changelog: 0.21.4...0.21.5

0.21.4

What's Changed

• Update openapi-spec-validator to 0.5.7 by @der-eismann in #1475
• Fix Pydantic V2 RootModel inheritance by @barreeeiroo in #1477
• main: fix configuration model validation after CLI args merge by @airwoodix in #1448
• Fix const for pydantic_v2 by @koxudaxi in #1482
• Unique list is defined as list by @koxudaxi in #1484
• switch away from deprecated pydantic method by @iliakur in #1485
• Fix condecimal by @koxudaxi in #1487
• Add unittest for discriminator by @koxudaxi in #1488

New Contributors

• @der-eismann made their first contribution in #1475
• @barreeeiroo made their first contribution in #1477
• @iliakur made their first contribution in #1485

Full Changelog: 0.21.3...0.21.4

0.21.3

What's Changed

• Give Pydantic V2 its own dump_resolve_reference_action to use model_rebuild not update_forward_refs by @lmmx in #1468
• fix: Fix regex expression of hostname in pydantic v2 by @xu-cheng in #1449
• Add base_class validation similar to _validate_base_class to bare generate calls by @kylebebak in #1453
• Fix issue #1461: Open API parameter models use base class if set by @piercsi in #1462
• Issues 1454 typeddict not required optional bug fix by @kylebebak in #1457

New Contributors

• @lmmx made their first contribution in #1468
• @xu-cheng made their first contribution in #1449
• @kylebebak made their first contribution in #1453
• @piercsi made their first contribution in #1462

Full Changelog: 0.21.2...0.21.3

0.21.2

What's Changed

• Pre-commit-hooks by @yehoshuadimarsky in #1416
• feat: add additional imports by @skonik in #1422
• Add orm_mode to Config(BaseModel) by @Beaueve in #1425
• Fix "parent" AttributeError when calling --collapse-root-models by @imankulov in #1432

New Contributors

• @yehoshuadimarsky made their first contribution in #1416
• @skonik made their first contribution in #1422
• @Beaueve made their first contribution in #1425
• @imankulov made their first contribution in #1432

Full Changelog: 0.21.1...0.21.2

0.21.1

What's Changed

• Relax version constraint of prance by @tetsuok in #1409
• Fix optional field doesn't include None by @koxudaxi in #1411

New Contributors

• @tetsuok made their first contribution in #1409

Full Changelog: 0.21.0...0.21.1

0.21.0

What's Changed

• pyproject: correct poetry-core package name by @ConnorBaker in #1374
• Support pydantic v2 in runtime by @koxudaxi in #1392
• Add pydantic v2 as output model type by @koxudaxi in #1391
• Add --use-unique-items as set by @koxudaxi in #1400

New Contributors

• @ConnorBaker made their first contribution in #1374

What is the difference between pydantic v1 and v2 output model?

Summary

datamodel-code-generator supports Pydantic v1 and v2 as output model type.

Pydantic v2 is a major release with many breaking changes. See the migration guide for more information:
https://docs.pydantic.dev/2.0/migration/

What's changes in v2 output?

__root__ field (a.k.a Custom Root Types)

__root__ field (a.k.a Custom Root Types) is removed in pydantic v2.
The model is changed to RootModel

pydantic.Field

https://docs.pydantic.dev/2.0/migration/#changes-to-pydanticfield

• const -> removed
• min_items (use min_length instead)
• max_items (use max_length instead)
• unique_items -> removed and the list type will be replaced by typing.Set. this feature is discussed in pydantic/pydantic-core#296
• allow_mutation (use frozen instead)
• regex (use pattern instead)

Model Config

• pydantic.Config -> pydantic.ConfigDict
• allow_mutation —> frozen (inverse value for getting same behavior).
• allow_population_by_field_name → populate_by_name

Full Changelog: 0.20.0...0.21.0

0.20.0

What's Changed

• Update documentation by @noddycode in #1316
• Support TypedDict as output type by @koxudaxi in #1309
• Remove self attribute from jsonschema root attributes by @rezen in #1318
• Fix $ref With Path Items by @zach-hamm in #1323
• Remove keep-runtime-typing on ruff config by @koxudaxi in #1349
• Update openapi-spec-validator to 0.5.2 by @Fokko in #1343
• Added support for model wise base classes by @senesh-deshan in #1350
• Fix the custom file header by @Fokko in #1346

Breaking Changes

• Eliminate the naming differences of model names and field names by the OS by @koxudaxi in #1348

Due to differences in file loading order between operating systems, we've added a sorting process when fetching file listings within directories in order to eliminate discrepancies in model and field names. As a result, model names that differ from those generated by existing earlier versions may be produced.

New Contributors

• @noddycode made their first contribution in #1316
• @rezen made their first contribution in #1318
• @zach-hamm made their first contribution in #1323
• @Fokko made their first contribution in #1343
• @senesh-deshan made their first contribution in #1350

Full Changelog: 0.19.0...0.20.0

0.19.0

What's Changed

• Import Annotated from typing_extensions for Python <= 3.8 by @airwoodix in #1274
• Fix OpenAPI array response by @koxudaxi in #1261
• Fix unresolved nested ref in openapi by @koxudaxi in #1269
• Fix unsorted dataclass field by @koxudaxi in #1288
• Fix allOf-anyOf by @koxudaxi in #1291
• Fix null by @koxudaxi in #1299

New Contributors

• @airwoodix made their first contribution in #1274

Full Changelog: 0.18.1...0.19.0

0.18.1

What's Changed

• default_factory field should be non-optional by @koxudaxi in #1254
• add --use-one-literal-as-default by @koxudaxi in #1256
• (🎁) Include py.typed to mark project as typed by @KotlinIsland in #1259
• Fix min/max on number fields truncated by @koxudaxi in #1266
• Add use_operation_id_as_name by @koxudaxi in #1267
• Add datetime to number and integer by @koxudaxi in #1268

Full Changelog: 0.18.0...0.18.1

0.18.0

What's Changed

• Update all to expose needed types by @ShaneMurphy2 in #1230
• Fix max min round issue by @koxudaxi in #1235
• Fix strict nullable for default factory by @koxudaxi in #1236
• Improve union types by @koxudaxi in #1241
• Support nested all_of by @koxudaxi in #1242
• (🎁) bump some dependencies by @KotlinIsland in #1245
• (🎁) log file type when --input-file-type is auto. by @KotlinIsland in #1248
• (🎁) remove typed-ast dependency by @KotlinIsland in #1246
• (🎁) reference config option to specify input type by @KotlinIsland in #1250
• (🎁) infer data vs schema when --input-file-type is auto by @KotlinIsland in #1249

New Contributors

• @ShaneMurphy2 made their first contribution in #1230

Full Changelog: 0.17.2...0.18.0