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Update checks.py #5523

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3 changes: 2 additions & 1 deletion rest_framework/checks.py
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Original file line number Diff line number Diff line change
Expand Up @@ -6,13 +6,14 @@ def pagination_system_check(app_configs, **kwargs):
errors = []
# Use of default page size setting requires a default Paginator class
from rest_framework.settings import api_settings
if api_settings.PAGE_SIZE and not api_settings.DEFAULT_PAGINATION_CLASS:
if api_settings.PAGE_SIZE and ("DEFAULT_PAGINATION_CLASS" not in api_settings.user_settings):
errors.append(
Warning(
"You have specified a default PAGE_SIZE pagination rest_framework setting,"
"without specifying also a DEFAULT_PAGINATION_CLASS.",
hint="The default for DEFAULT_PAGINATION_CLASS is None. "
"In previous versions this was PageNumberPagination",
"PAGE_SIZE needs specifying a DEFAULT_PAGINATION_CLASS Even though the value is None,"
)
)
return errors