mirror of
https://github.com/jazzband/django-eav2.git
synced 2026-03-16 22:40:26 +00:00
c4d7cedeb8
Replace flake8 with ruff and apply consistent linting rules across the entire codebase. Update type annotations, quotation marks, and other style-related changes to comply with the new standards.
63 lines
1.8 KiB
Python
63 lines
1.8 KiB
Python
from __future__ import annotations
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from typing import TYPE_CHECKING, Any
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from django.db import models
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from django.db.models import ManyToManyField
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from django.utils.translation import gettext_lazy as _
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from eav.logic.managers import EnumGroupManager
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from eav.logic.object_pk import get_pk_format
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from eav.settings import CHARFIELD_LENGTH
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if TYPE_CHECKING:
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from .enum_value import EnumValue
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class EnumGroup(models.Model):
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"""
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*EnumGroup* objects have two fields - a *name* ``CharField`` and *values*,
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a ``ManyToManyField`` to :class:`EnumValue`. :class:`Attribute` classes
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with datatype *TYPE_ENUM* have a ``ForeignKey`` field to *EnumGroup*.
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See :class:`EnumValue` for an example.
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"""
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id = get_pk_format()
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name = models.CharField(
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unique=True,
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max_length=CHARFIELD_LENGTH,
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verbose_name=_("Name"),
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)
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values: ManyToManyField[EnumValue, Any] = ManyToManyField(
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"eav.EnumValue",
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verbose_name=_("Enum group"),
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)
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objects = EnumGroupManager()
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class Meta:
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verbose_name = _("EnumGroup")
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verbose_name_plural = _("EnumGroups")
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def __str__(self) -> str:
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"""String representation of `EnumGroup` instance."""
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return str(self.name)
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def __repr__(self) -> str:
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"""String representation of `EnumGroup` object."""
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return f"<EnumGroup {self.name}>"
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def natural_key(self) -> tuple[str]:
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"""
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Retrieve the natural key for the EnumGroup instance.
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The natural key for an EnumGroup is defined by its `name`. This method
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returns the name of the instance as a single-element tuple.
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Returns
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-------
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tuple: A tuple containing the name of the EnumGroup instance.
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"""
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return (self.name,)
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