mirror of
https://github.com/jazzband/django-eav2.git
synced 2026-03-16 22:40:26 +00:00
b5b576aca5
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.
112 lines
3.1 KiB
Python
112 lines
3.1 KiB
Python
"""
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This module contains a validator for each :class:`~eav.models.Attribute` datatype.
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A validator is a callable that takes a value and raises a ``ValidationError``
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if it doesn't meet some criteria (see `Django validators
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<https://docs.djangoproject.com/en/dev/ref/validators/>`_).
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These validators are called by the
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:meth:`~eav.models.Attribute.validate_value` method in the
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:class:`~eav.models.Attribute` model.
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"""
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import datetime
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import json
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from django.core.exceptions import ValidationError
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from django.db import models
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from django.utils.translation import gettext_lazy as _
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def validate_text(value):
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"""
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Raises ``ValidationError`` unless *value* type is ``str`` or ``unicode``
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"""
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if not isinstance(value, str):
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raise ValidationError(_("Must be str or unicode"))
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def validate_float(value):
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"""
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Raises ``ValidationError`` unless *value* can be cast as a ``float``
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"""
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try:
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float(value)
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except ValueError as err:
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raise ValidationError(_("Must be a float")) from err
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def validate_int(value):
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"""
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Raises ``ValidationError`` unless *value* can be cast as an ``int``
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"""
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try:
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int(value)
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except ValueError as err:
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raise ValidationError(_("Must be an integer")) from err
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def validate_date(value):
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"""
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Raises ``ValidationError`` unless *value* is an instance of ``datetime``
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or ``date``
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"""
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if not isinstance(value, datetime.datetime) and not isinstance(
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value,
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datetime.date,
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):
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raise ValidationError(_("Must be a date or datetime"))
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def validate_bool(value):
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"""
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Raises ``ValidationError`` unless *value* type is ``bool``
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"""
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if not isinstance(value, bool):
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raise ValidationError(_("Must be a boolean"))
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def validate_object(value):
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"""
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Raises ``ValidationError`` unless *value* is a saved
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django model instance.
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"""
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if not isinstance(value, models.Model):
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raise ValidationError(_("Must be a django model object instance"))
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if not value.pk:
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raise ValidationError(_("Model has not been saved yet"))
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def validate_enum(value):
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"""
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Raises ``ValidationError`` unless *value* is a saved
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:class:`~eav.models.EnumValue` model instance.
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"""
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from eav.models import EnumValue
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if isinstance(value, EnumValue) and not value.pk:
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raise ValidationError(_("EnumValue has not been saved yet"))
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def validate_json(value):
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"""
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Raises ``ValidationError`` unless *value* can be cast as an ``json object`` (a dict)
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"""
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try:
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if isinstance(value, str):
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value = json.loads(value)
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if not isinstance(value, dict):
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raise ValidationError(_("Must be a JSON Serializable object"))
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except ValueError as err:
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raise ValidationError(_("Must be a JSON Serializable object")) from err
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def validate_csv(value):
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"""
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Raises ``ValidationError`` unless *value* is a c-s-v value.
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"""
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if isinstance(value, str):
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value = value.split(";")
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if not isinstance(value, list):
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raise ValidationError(_("Must be Comma-Separated-Value."))
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