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add AttributeValueNames for basic ProjectionExpressions on query

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This commit is contained in:
Chris Keogh 2017-09-22 15:40:30 +12:00
commit 8840495f77
2 changed files with 67 additions and 1 deletions
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7
moto/dynamodb2/responses.py
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@ -277,6 +277,13 @@ class DynamoHandler(BaseResponse):
# {u'KeyConditionExpression': u'#n0 = :v0', u'ExpressionAttributeValues': {u':v0': {u'S': u'johndoe'}}, u'ExpressionAttributeNames': {u'#n0': u'username'}}
key_condition_expression = self.body.get('KeyConditionExpression')
projection_expression = self.body.get('ProjectionExpression')
expression_attribute_names = self.body.get('ExpressionAttributeNames')
if projection_expression and expression_attribute_names:
expressions = [x.strip() for x in projection_expression.split(',')]
for expression in expressions:
if expression in expression_attribute_names:
projection_expression = projection_expression.replace(expression, expression_attribute_names[expression])
filter_kwargs = {}
if key_condition_expression: