SelectionRequest

public protocol SelectionRequest

The protocol for all requests that can refine their selection.

  • select(_:) Default implementation

    Creates a request with a new set of selected columns.

    // SELECT id, email FROM player
var request = Player.all()
request = request.select([Column("id"), Column("email")])

    Any previous selection is replaced:

    // SELECT email FROM player
request
    .select([Column("id")])
    .select([Column("email")])

    Default Implementation

    Creates a request with a new set of selected columns.

    // SELECT id, email FROM player
var request = Player.all()
request = request.select(Column("id"), Column("email"))

    Any previous selection is replaced:

    // SELECT email FROM player
request
    .select(Column("id"))
    .select(Column("email"))

    Declaration

    Swift

    func select(_ selection: [SQLSelectable]) -> Self
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  • select(sql:arguments:) Extension method

    Creates a request with a new set of selected columns.

    // SELECT id, email FROM player
var request = Player.all()
request = request.select(sql: "id, email")

    Any previous selection is replaced:

    // SELECT email FROM player
request
    .select(sql: "id")
    .select(sql: "email")

    Declaration

    Swift

    public func select(sql: String, arguments: StatementArguments? = nil) -> Self
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