internal static IEnumerable <QueryArgument> ToQueryArguments(this LocalSecondaryIndexDescription index, IEnumerable <AttributeDefinition> attributes)
{
foreach (var key in index.KeySchema)
{
yield return(ToQueryArgument(attributes, key.AttributeName));
}
foreach (var attributeName in index.Projection.NonKeyAttributes)
{
yield return(ToQueryArgument(attributes, attributeName));
}
}
private QueryRequest ToQuery(ResolveFieldContext context, string tableName, LocalSecondaryIndexDescription index)
{
var arguments = context.Arguments.Select(arg => GetArgument(arg, index.KeySchema));
return(new QueryRequest(tableName)
{
Select = Select.ALL_ATTRIBUTES,
IndexName = index.IndexName,
KeyConditionExpression = String.Join(" and ", arguments.Select(_ => $"{_.Key} = :v_{_.Key}")),
ExpressionAttributeValues = arguments.ToDictionary(_ => $":v_{_.Key}", _ => new AttributeValue {
S = _.Value.ToString()
})
});
}
