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# Copyright (C) 2019 Linaro Limited
#
# Author: Antonio Terceiro <antonio.terceiro@linaro.org>
#
# SPDX-License-Identifier: GPL-2.0-or-later
import rest_framework_filters as filters
from django_tables2.paginators import LazyPaginator
# Handles compatibility for django_restframework_filters
try:
from rest_framework_filters.backends import RestFrameworkFilterBackend # noqa
# RelatedFilter argument "name" as been renamed "field_name"
def RelatedFilter(cls, name, queryset):
return filters.RelatedFilter(cls, field_name=name, queryset=queryset)
except ImportError:
from rest_framework_filters.backends import ( # noqa
DjangoFilterBackend as RestFrameworkFilterBackend,
)
# Keep the original version
def RelatedFilter(cls, name, queryset):
return filters.RelatedFilter(cls, name=name, queryset=queryset)
FilterBackend = RestFrameworkFilterBackend
class NoMarkupFilterBackend(FilterBackend):
def to_html(self, request, queryset, view):
# In order to prevent a huge performance issue when rendering the
# browsable API, do not render the choice fields.
return ""
def djt2_paginator_class():
import django_tables2
if django_tables2.__version__ < "2.3.1":
class FixedLazyPaginator(LazyPaginator):
def page(self, number):
number = self.validate_number(number or 1)
return super().page(number)
return {"paginator_class": FixedLazyPaginator}
return {"paginator_class": LazyPaginator}
def is_ajax(request):
return request.META.get("HTTP_X_REQUESTED_WITH") == "XMLHttpRequest"
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