2016-09-19 07:47:58 +00:00
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# coding: utf-8
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from django.db import models
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2016-10-01 12:26:43 +00:00
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from django.http import JsonResponse
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2017-12-26 17:29:23 +00:00
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from django.utils import timezone
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2016-09-19 07:47:58 +00:00
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from django.utils.translation import ugettext_lazy as _
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2018-01-11 12:10:27 +00:00
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from django.contrib.auth.mixins import UserPassesTestMixin
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2016-09-19 07:47:58 +00:00
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class NoDeleteQuerySet(models.query.QuerySet):
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def delete(self):
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2017-12-26 17:29:23 +00:00
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return self.update(is_discard=True, discard_time=timezone.now())
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2016-09-19 07:47:58 +00:00
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class NoDeleteManager(models.Manager):
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def get_all(self):
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return NoDeleteQuerySet(self.model, using=self._db)
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def get_queryset(self):
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return NoDeleteQuerySet(self.model, using=self._db).filter(is_discard=False)
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def get_deleted(self):
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return NoDeleteQuerySet(self.model, using=self._db).filter(is_discard=True)
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class NoDeleteModelMixin(models.Model):
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is_discard = models.BooleanField(verbose_name=_("is discard"), default=False)
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discard_time = models.DateTimeField(verbose_name=_("discard time"), null=True, blank=True)
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objects = NoDeleteManager()
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class Meta:
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abstract = True
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def delete(self):
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self.is_discard = True
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2017-12-26 17:29:23 +00:00
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self.discard_time = timezone.now()
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2016-09-19 07:47:58 +00:00
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return self.save()
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2016-10-01 12:26:43 +00:00
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class JSONResponseMixin(object):
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"""JSON mixin"""
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2016-11-24 09:08:20 +00:00
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@staticmethod
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def render_json_response(context):
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2016-10-01 12:26:43 +00:00
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return JsonResponse(context)
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2016-10-02 03:09:27 +00:00
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2018-02-02 09:06:08 +00:00
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class IDInFilterMixin(object):
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2016-10-02 03:09:27 +00:00
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def filter_queryset(self, queryset):
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2018-02-02 09:06:08 +00:00
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queryset = super(IDInFilterMixin, self).filter_queryset(queryset)
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2016-10-02 03:09:27 +00:00
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id_list = self.request.query_params.get('id__in')
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if id_list:
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import json
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try:
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ids = json.loads(id_list)
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except Exception as e:
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return queryset
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if isinstance(ids, list):
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queryset = queryset.filter(id__in=ids)
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return queryset
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2017-12-12 04:19:45 +00:00
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class BulkSerializerMixin(object):
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"""
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Become rest_framework_bulk not support uuid as a primary key
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so rewrite it. https://github.com/miki725/django-rest-framework-bulk/issues/66
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"""
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def to_internal_value(self, data):
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from rest_framework_bulk import BulkListSerializer
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ret = super(BulkSerializerMixin, self).to_internal_value(data)
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id_attr = getattr(self.Meta, 'update_lookup_field', 'id')
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request_method = getattr(getattr(self.context.get('view'), 'request'), 'method', '')
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# add update_lookup_field field back to validated data
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# since super by default strips out read-only fields
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# hence id will no longer be present in validated_data
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if all((isinstance(self.root, BulkListSerializer),
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id_attr,
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request_method in ('PUT', 'PATCH'))):
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id_field = self.fields[id_attr]
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if data.get("id"):
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id_value = id_field.to_internal_value(data.get("id"))
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else:
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id_value = id_field.to_internal_value(data.get("pk"))
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ret[id_attr] = id_value
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return ret
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2017-12-26 17:29:23 +00:00
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class DatetimeSearchMixin:
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2018-01-01 07:08:33 +00:00
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date_format = '%Y-%m-%d'
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2017-12-26 17:29:23 +00:00
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date_from = date_to = None
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def get(self, request, *args, **kwargs):
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date_from_s = self.request.GET.get('date_from')
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date_to_s = self.request.GET.get('date_to')
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if date_from_s:
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2018-01-01 07:08:33 +00:00
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date_from = timezone.datetime.strptime(date_from_s, self.date_format)
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2018-03-02 07:39:01 +00:00
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tz = timezone.get_current_timezone()
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self.date_from = tz.localize(date_from)
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2017-12-26 17:29:23 +00:00
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else:
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self.date_from = timezone.now() - timezone.timedelta(7)
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if date_to_s:
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date_to = timezone.datetime.strptime(
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2018-01-01 07:08:33 +00:00
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date_to_s + ' 23:59:59', self.date_format + ' %H:%M:%S'
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2017-12-26 17:29:23 +00:00
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)
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self.date_to = date_to.replace(
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tzinfo=timezone.get_current_timezone()
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)
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else:
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self.date_to = timezone.now()
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2018-01-11 12:10:27 +00:00
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return super().get(request, *args, **kwargs)
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class AdminUserRequiredMixin(UserPassesTestMixin):
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def test_func(self):
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if not self.request.user.is_authenticated:
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return False
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elif not self.request.user.is_superuser:
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self.raise_exception = True
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return False
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return True
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