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22 lines
718 B
22 lines
718 B
# -*- coding: utf-8 -*-
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from django.db import models
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from docs.models.invoice import Invoice
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from docs import consts
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class SignedStatusFieldMixin(models.Model):
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"""Mixin: добавляет поле `Подписан?`"""
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signed_status = models.BooleanField(u'Подписан?', choices=consts.BOOL_CHOICES, default=False)
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class Meta:
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abstract = True
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class InvoiceFieldMixin(models.Model):
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"""Mixin: добавляет FK поле `Создать по счёту`"""
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invoice = models.ForeignKey(Invoice, related_name='+', verbose_name=u'Создать по счёту', blank=True, null=True,
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default=None, on_delete=models.SET_NULL)
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class Meta:
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abstract = True
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