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fix case if don't have attrs

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Heyder 2020-03-04 23:56:30 -03:00 committed by GitHub
parent bc1c9a27f1
commit f8dd5a13c6
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1 changed files with 5 additions and 1 deletions
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6
moto/dynamodb2/models.py
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@ -450,7 +450,11 @@ class Item(BaseModel):
old_list_key = list_append_re.group(1)
# old_key could be a function itself (if_not_exists)
if old_list_key.startswith("if_not_exists"):
old_list = DynamoType(self._get_default(old_list_key))
old_list = self._get_default(old_list_key)
if not isinstance(old_list, DynamoType):
old_list = DynamoType(
expression_attribute_values[old_list]
)
else:
old_list = self.attrs[old_list_key.split(".")[0]]
if "." in old_list_key: