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83 lines
2.5 KiB
Python
83 lines
2.5 KiB
Python
from django.core.exceptions import ValidationError
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from django.core.validators import BaseValidator
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from django.utils.deconstruct import deconstructible
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MAX_CATEGORIES_LIST_LEN = 20
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MIN_CATEGORY_LEN = 2
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MAX_CATEGORY_LEN = 20
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MIN_UNIQUE_PROMOCODES_LIST_LEN = 1
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MAX_UNIQUE_PROMOCODES_LIST_LEN = 5000
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MIN_UNIQUE_PROMOCODE_LEN = 3
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MAX_UNIQUE_PROMOCODE_LEN = 30
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class TargetAgeValidator:
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def __call__(self, instance) -> None: # noqa: ANN001
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if (
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instance.age_from is not None
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and instance.age_until is not None
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and instance.age_from > instance.age_until
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):
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err = "age_from can't be greater than age_until"
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raise ValidationError(err)
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class PromocodeDurationValidator:
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def __call__(self, instance) -> None: # noqa: ANN001
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if (
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instance.active_from is not None
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and instance.active_until is not None
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and instance.active_from > instance.active_until
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):
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err = "active_from can't be greater than active_until"
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raise ValidationError(err)
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@deconstructible
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class TargetCategoriesValidator(BaseValidator):
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def __init__(self) -> None:
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pass
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def __call__(self, categories: list) -> None:
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if not isinstance(categories, list):
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err = "categories must be a list"
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raise ValidationError(err)
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if len(categories) > MAX_CATEGORIES_LIST_LEN:
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err = "max. categories length is 20"
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raise ValidationError(err)
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for category in categories:
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if not (MIN_CATEGORY_LEN <= len(category) <= MAX_CATEGORY_LEN):
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err = "category name length must be >=2 and <=20"
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raise ValidationError(err)
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@deconstructible
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class PromocodeUniqueValidator(BaseValidator):
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def __init__(self) -> None:
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pass
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def __call__(self, promocodes: list) -> None:
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if not isinstance(promocodes, list):
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err = "unique promocodes must be a list"
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raise ValidationError(err)
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if not (
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MIN_UNIQUE_PROMOCODES_LIST_LEN
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<= len(promocodes)
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<= MAX_UNIQUE_PROMOCODES_LIST_LEN
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):
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err = "unique promocodes length must be >=1 and <=5000"
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raise ValidationError(err)
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for promocode in promocodes:
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if not (
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MIN_UNIQUE_PROMOCODE_LEN
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<= len(promocode)
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<= MAX_UNIQUE_PROMOCODE_LEN
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):
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err = "unique promocode length must be >=3 and <=30"
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raise ValidationError(err)
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