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73 lines
1.9 KiB
73 lines
1.9 KiB
# -*- coding: utf-8 -*-
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#
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import re
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from django.shortcuts import reverse as dj_reverse
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from django.conf import settings
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from django.utils import timezone
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from django.db import models
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from django.db.models.signals import post_save, pre_save
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UUID_PATTERN = re.compile(r'[0-9a-zA-Z\-]{36}')
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def reverse(view_name, urlconf=None, args=None, kwargs=None,
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current_app=None, external=False, api_to_ui=False):
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url = dj_reverse(view_name, urlconf=urlconf, args=args,
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kwargs=kwargs, current_app=current_app)
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if external:
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site_url = settings.SITE_URL
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url = site_url.strip('/') + url
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if api_to_ui:
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url = url.replace('api/v1', 'ui/#').rstrip('/')
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return url
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def get_object_or_none(model, **kwargs):
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try:
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obj = model.objects.get(**kwargs)
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except model.DoesNotExist:
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return None
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return obj
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def date_expired_default():
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try:
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years = int(settings.DEFAULT_EXPIRED_YEARS)
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except TypeError:
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years = 70
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return timezone.now() + timezone.timedelta(days=365*years)
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def union_queryset(*args, base_queryset=None):
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if len(args) == 1:
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return args[0]
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elif len(args) == 0:
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raise ValueError("args is empty")
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args = [q.order_by() for q in args]
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sub_query = args[0].union(*args[1:])
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queryset_id = list(sub_query.values_list('id', flat=True))
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if not base_queryset:
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base_queryset = args[0].model.objects
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queryset = base_queryset.filter(id__in=queryset_id)
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return queryset
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def get_log_keep_day(s, defaults=200):
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try:
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days = int(getattr(settings, s))
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except ValueError:
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days = defaults
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return days
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def bulk_create_with_signal(cls: models.Model, items, **kwargs):
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for i in items:
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pre_save.send(sender=cls, instance=i)
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result = cls.objects.bulk_create(items, **kwargs)
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for i in items:
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post_save.send(sender=cls, instance=i, created=True)
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return result
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