AssociationAggregate

You build an AssociationAggregate from an AssociationToMany.

For example:

struct Player: TableRecord { }
struct Team: FetchableRecord, TableRecord {
    static let players = Team.hasMany(Player.self)
}

try dbQueue.read { db in
    // An association aggregate
    let playerCount = Team.players.count

    // Fetch all teams with at least ten players:
    let teams: [Team] = try Team
        .having(playerCount >= 10)
        .fetchAll(db)
}

Instance Methods

• func forKey(String) -> AssociationAggregate<RowDecoder>

  Returns an aggregate that is selected in a column with the given name.

• func forKey(some CodingKey) -> AssociationAggregate<RowDecoder>

  Returns an aggregate that is selected in a column named like the given coding key.

Top-Level Functions

• func abs<RowDecoder>(AssociationAggregate<RowDecoder>) -> AssociationAggregate<RowDecoder>

  The ABS SQL function.

• func cast<RowDecoder>(AssociationAggregate<RowDecoder>, as: Database.StorageClass) -> AssociationAggregate<RowDecoder>

  The CAST SQL function.

• func length<RowDecoder>(AssociationAggregate<RowDecoder>) -> AssociationAggregate<RowDecoder>

  The LENGTH SQL function.