Daniel Bedeleanu
ea49cd6e4a
- Create backend/services/image_storage.py with 4 core functions:
- sanitize_filename(): remove unsafe chars, limit to 255 chars, convert to lowercase
- get_unique_filename(): handle collisions with UUID suffix (format: {name}_{uuid8}_{variant}.jpg)
- ensure_image_directories(): create /images/ root and category subdirs on startup
- save_image(): save bytes to /images/{category}/{filename}, returns relative path
- Create comprehensive test suite (22 tests) covering all functionality
- Integrate ensure_image_directories() into FastAPI startup event
- Directory structure: /images/{category}/{filename}
- Collision handling: auto-suffix with UUID if filename exists
- All tests passing, pathlib.Path for safe operations
104 lines
3.3 KiB
Python
104 lines
3.3 KiB
Python
from __future__ import annotations
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import json
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import warnings
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from typing import TYPE_CHECKING, Any, Callable, TypeVar, Union
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from typing_extensions import deprecated
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from ..json_schema import DEFAULT_REF_TEMPLATE, GenerateJsonSchema
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from ..type_adapter import TypeAdapter
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from ..warnings import PydanticDeprecatedSince20
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if not TYPE_CHECKING:
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# See PyCharm issues https://youtrack.jetbrains.com/issue/PY-21915
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# and https://youtrack.jetbrains.com/issue/PY-51428
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DeprecationWarning = PydanticDeprecatedSince20
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__all__ = 'parse_obj_as', 'schema_of', 'schema_json_of'
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NameFactory = Union[str, Callable[[type[Any]], str]]
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T = TypeVar('T')
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@deprecated(
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'`parse_obj_as` is deprecated. Use `pydantic.TypeAdapter.validate_python` instead.',
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category=None,
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)
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def parse_obj_as(type_: type[T], obj: Any, type_name: NameFactory | None = None) -> T:
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warnings.warn(
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'`parse_obj_as` is deprecated. Use `pydantic.TypeAdapter.validate_python` instead.',
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category=PydanticDeprecatedSince20,
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stacklevel=2,
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)
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if type_name is not None: # pragma: no cover
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warnings.warn(
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'The type_name parameter is deprecated. parse_obj_as no longer creates temporary models',
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DeprecationWarning,
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stacklevel=2,
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)
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return TypeAdapter(type_).validate_python(obj)
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@deprecated(
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'`schema_of` is deprecated. Use `pydantic.TypeAdapter.json_schema` instead.',
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category=None,
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)
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def schema_of(
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type_: Any,
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*,
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title: NameFactory | None = None,
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by_alias: bool = True,
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ref_template: str = DEFAULT_REF_TEMPLATE,
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schema_generator: type[GenerateJsonSchema] = GenerateJsonSchema,
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) -> dict[str, Any]:
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"""Generate a JSON schema (as dict) for the passed model or dynamically generated one."""
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warnings.warn(
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'`schema_of` is deprecated. Use `pydantic.TypeAdapter.json_schema` instead.',
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category=PydanticDeprecatedSince20,
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stacklevel=2,
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)
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res = TypeAdapter(type_).json_schema(
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by_alias=by_alias,
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schema_generator=schema_generator,
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ref_template=ref_template,
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)
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if title is not None:
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if isinstance(title, str):
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res['title'] = title
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else:
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warnings.warn(
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'Passing a callable for the `title` parameter is deprecated and no longer supported',
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DeprecationWarning,
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stacklevel=2,
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)
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res['title'] = title(type_)
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return res
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@deprecated(
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'`schema_json_of` is deprecated. Use `pydantic.TypeAdapter.json_schema` instead.',
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category=None,
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)
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def schema_json_of(
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type_: Any,
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*,
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title: NameFactory | None = None,
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by_alias: bool = True,
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ref_template: str = DEFAULT_REF_TEMPLATE,
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schema_generator: type[GenerateJsonSchema] = GenerateJsonSchema,
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**dumps_kwargs: Any,
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) -> str:
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"""Generate a JSON schema (as JSON) for the passed model or dynamically generated one."""
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warnings.warn(
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'`schema_json_of` is deprecated. Use `pydantic.TypeAdapter.json_schema` instead.',
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category=PydanticDeprecatedSince20,
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stacklevel=2,
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)
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return json.dumps(
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schema_of(type_, title=title, by_alias=by_alias, ref_template=ref_template, schema_generator=schema_generator),
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**dumps_kwargs,
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)
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