ScopeAdapter

public struct ScopeAdapter : RowAdapter

ScopeAdapter is a row adapter that lets you define scopes on rows.

// Two adapters
let fooAdapter = ColumnMapping(["value": "foo"])
let barAdapter = ColumnMapping(["value": "bar"])

// Define scopes
let adapter = ScopeAdapter([
    "foo": fooAdapter,
    "bar": barAdapter])

// Fetch
let sql = "SELECT 'foo' AS foo, 'bar' AS bar"
let row = try Row.fetchOne(db, sql, adapter: adapter)!

// Scoped rows:
if let fooRow = row.scoped(on: "foo") {
    fooRow["value"]    // "foo"
}
if let barRow = row.scopeed(on: "bar") {
    barRow["value"]    // "bar"
}