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Set first amount to max limit if not set #993

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Jun 25, 2020
Merged

Set first amount to max limit if not set #993

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3 changes: 3 additions & 0 deletions graphene_django/fields.py
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Original file line number Diff line number Diff line change
Expand Up @@ -146,6 +146,9 @@ def resolve_connection(cls, connection, args, iterable, max_limit=None):

after = get_offset_with_default(args.get("after"), -1) + 1

if max_limit is not None and "first" not in args:
args["first"] = max_limit

connection = connection_from_list_slice(
iterable[after:],
args,
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7 changes: 2 additions & 5 deletions graphene_django/tests/test_query.py
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Expand Up @@ -1127,7 +1127,7 @@ class Query(graphene.ObjectType):


def test_should_have_next_page(graphene_settings):
graphene_settings.RELAY_CONNECTION_MAX_LIMIT = 6
graphene_settings.RELAY_CONNECTION_MAX_LIMIT = 4
reporters = [Reporter(**kwargs) for kwargs in REPORTERS]
Reporter.objects.bulk_create(reporters)
db_reporters = Reporter.objects.all()
Expand All @@ -1141,9 +1141,6 @@ class Query(graphene.ObjectType):
all_reporters = DjangoConnectionField(ReporterType)

schema = graphene.Schema(query=Query)
# Need first: 4 here to trigger the `has_next_page` logic in graphql-relay
# See `arrayconnection.py::connection_from_list_slice`:
# has_next_page=isinstance(first, int) and end_offset < upper_bound
query = """
query AllReporters($first: Int, $after: String) {
allReporters(first: $first, after: $after) {
Expand All @@ -1160,7 +1157,7 @@ class Query(graphene.ObjectType):
}
"""

result = schema.execute(query, variable_values=dict(first=4))
result = schema.execute(query, variable_values={})
assert not result.errors
assert len(result.data["allReporters"]["edges"]) == 4
assert result.data["allReporters"]["pageInfo"]["hasNextPage"]
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