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32 lines
1.3 KiB
Python
32 lines
1.3 KiB
Python
from django.db.models import CharField, DateField, DateTimeField, JSONField, FileField, ImageField
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from django.db.models import BooleanField, IntegerField, FloatField, DecimalField
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from django.db.models.deletion import CASCADE, SET_NULL, SET_DEFAULT, PROTECT
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from django.db.models import OneToOneField, ForeignKey, ManyToManyField
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from django.db.models import Model, IntegerChoices, TextChoices
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from django.db.models import Sum, Count, Value, F, Q, Prefetch
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from django.db.models.functions import Coalesce
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from django.db import transaction, connection
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class ModelMixin():
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def validate(self):
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"""验证"""
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class AmountField(DecimalField):
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"""金额字段"""
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def __init__(self, verbose_name=None, name=None, **kwargs):
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kwargs['max_digits'], kwargs['decimal_places'] = 16, 2
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super().__init__(verbose_name, name, **kwargs)
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__all__ = [
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'Model', 'ModelMixin', 'IntegerChoices', 'TextChoices',
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'CASCADE', 'SET_NULL', 'SET_DEFAULT', 'PROTECT',
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'OneToOneField', 'ForeignKey', 'ManyToManyField',
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'BooleanField', 'IntegerField', 'FloatField', 'DecimalField', 'AmountField',
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'CharField', 'DateField', 'DateTimeField', 'JSONField', 'FileField', 'ImageField',
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'Sum', 'Count', 'Value', 'F', 'Q', 'Prefetch', 'Coalesce', 'transaction', 'connection',
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]
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