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43 lines
1.4 KiB
43 lines
1.4 KiB
5 years ago
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# -*- coding: utf-8 -*-
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#
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from rest_framework import filters
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from rest_framework.fields import DateTimeField
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from rest_framework.serializers import ValidationError
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import logging
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__all__ = ["DatetimeRangeFilter"]
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class DatetimeRangeFilter(filters.BaseFilterBackend):
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def filter_queryset(self, request, queryset, view):
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if not hasattr(view, 'date_range_filter_fields'):
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return queryset
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try:
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fields = dict(view.date_range_filter_fields)
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except ValueError:
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msg = "View {} datetime_filter_fields set is error".format(view.name)
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logging.error(msg)
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return queryset
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kwargs = {}
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for attr, date_range_keyword in fields.items():
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if len(date_range_keyword) != 2:
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continue
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for i, v in enumerate(date_range_keyword):
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value = request.query_params.get(v)
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if not value:
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continue
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try:
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field = DateTimeField()
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value = field.to_internal_value(value)
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if i == 0:
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lookup = "__gte"
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else:
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lookup = "__lte"
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kwargs[attr+lookup] = value
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except ValidationError as e:
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print(e)
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continue
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if kwargs:
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queryset = queryset.filter(**kwargs)
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return queryset
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