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Merge pull request #2605 from bblommers/dynamodb_add_nested_stringsets

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Dynamodb - DELETE/ADD item from/to nested sets
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Mike Grima 2019-12-09 14:14:56 -08:00 • committed by GitHub
commit 4d5bf1c5c6
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2 changed files with 103 additions and 6 deletions
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73
tests/test_dynamodb2/test_dynamodb_table_with_range_key.py
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@ -1289,6 +1289,16 @@ def test_update_item_add_with_expression():
current_item["str_set"] = current_item["str_set"].union({"item4"})
dict(table.get_item(Key=item_key)["Item"]).should.equal(current_item)
# Update item to add a string value to a non-existing set
# Should just create the set in the background
table.update_item(
Key=item_key,
UpdateExpression="ADD non_existing_str_set :v",
ExpressionAttributeValues={":v": {"item4"}},
)
current_item["non_existing_str_set"] = {"item4"}
dict(table.get_item(Key=item_key)["Item"]).should.equal(current_item)
# Update item to add a num value to a num set
table.update_item(
Key=item_key,
@ -1336,6 +1346,69 @@ def test_update_item_add_with_expression():
).should.have.raised(ClientError)
@mock_dynamodb2
def test_update_item_add_with_nested_sets():
table = _create_table_with_range_key()
item_key = {"forum_name": "the-key", "subject": "123"}
current_item = {
"forum_name": "the-key",
"subject": "123",
"nested": {"str_set": {"item1", "item2", "item3"}},
}
# Put an entry in the DB to play with
table.put_item(Item=current_item)
# Update item to add a string value to a nested string set
table.update_item(
Key=item_key,
UpdateExpression="ADD nested.str_set :v",
ExpressionAttributeValues={":v": {"item4"}},
)
current_item["nested"]["str_set"] = current_item["nested"]["str_set"].union(
{"item4"}
)
dict(table.get_item(Key=item_key)["Item"]).should.equal(current_item)
# Update item to add a string value to a non-existing set
# Should just create the set in the background
table.update_item(
Key=item_key,
UpdateExpression="ADD #ns.#ne :v",
ExpressionAttributeNames={"#ns": "nested", "#ne": "non_existing_str_set"},
ExpressionAttributeValues={":v": {"new_item"}},
)
current_item["nested"]["non_existing_str_set"] = {"new_item"}
dict(table.get_item(Key=item_key)["Item"]).should.equal(current_item)
@mock_dynamodb2
def test_update_item_delete_with_nested_sets():
table = _create_table_with_range_key()
item_key = {"forum_name": "the-key", "subject": "123"}
current_item = {
"forum_name": "the-key",
"subject": "123",
"nested": {"str_set": {"item1", "item2", "item3"}},
}
# Put an entry in the DB to play with
table.put_item(Item=current_item)
# Update item to add a string value to a nested string set
table.update_item(
Key=item_key,
UpdateExpression="DELETE nested.str_set :v",
ExpressionAttributeValues={":v": {"item3"}},
)
current_item["nested"]["str_set"] = current_item["nested"]["str_set"].difference(
{"item3"}
)
dict(table.get_item(Key=item_key)["Item"]).should.equal(current_item)
@mock_dynamodb2
def test_update_item_delete_with_expression():
table = _create_table_with_range_key()