Add table name alias an prefix support #116
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Adds table name aliasing and an optional table name prefix. Both are configured at
dynamo.DBlevel.It's similar to what's offered by the AWS .NET Core SDK.
In a call to
db.Table(name)ordb.CreateTable(name, ...): if thenameis a key in thedb's alias mapping, it is replaced by its value in the alias mapping. Finally, the prefix is prepended to the name. The alias mapping and prefix are initially empty, so the default behaviour remains unchanged.This is a convenience feature for applications that must permit overrides of individual table names, allowing for this configuration to be decoupled from the construction of
dynamo.Table. By setting up a randomly generated prefix, it can also simplify testing wheredynamo.DBis involved.