Returns a set of records identified by their primary keys.
static func fetchSet(_ db: Database, keys: some Collection<some DatabaseValueConvertible>) throws -> Set<Self> s4GRDB15FetchableRecordPA2A05TableC0RzSHRzrlE8fetchSet_4keysShyxGAA8DatabaseC_qd__tKSlRd__AA0H16ValueConvertibleRd_0_7ElementQyd__Rsd_0_r0_lFZ What are these?7LHCNwhere Self:TableRecord, Self:HashableA set of records.
A DatabaseError whenever an SQLite error occurs.
For example:
try dbQueue.read { db in
let players = try Player.fetchSet(db, keys: [1, 2, 3])
let countries = try Country.fetchSet(db, keys: ["FR", "US"])
}import GRDBA toolkit for SQLite databases, with a focus on application development
protocol FetchableRecordA type that can decode itself from a database row.
final class DatabaseAn SQLite connection.
protocol Collection<Element> : SequenceA sequence whose elements can be traversed multiple times, nondestructively, and accessed by an indexed subscript.
protocol DatabaseValueConvertible : SQLExpressible, StatementBindingA type that can convert itself into and out of a database value.
@frozen struct Set<Element> where Element : HashableAn unordered collection of unique elements.
protocol TableRecordA type that builds database queries with the Swift language instead of SQL.
protocol Hashable : EquatableA type that can be hashed into a Hasher to produce an integer hash value.
struct DatabaseErrorA DatabaseError describes an SQLite error.
static func fetchCursor(_ db: Database, ids: some Collection<ID>) throws -> RecordCursor<Self> Returns a cursor over records identified by their primary keys.
static func fetchAll(_ db: Database, ids: some Collection<ID>) throws -> [Self] Returns an array of records identified by their primary keys.
static func fetchSet(_ db: Database, ids: some Collection<ID>) throws -> Set<Self> Returns a set of records identified by their primary keys.
static func fetchOne(_ db: Database, id: ID) throws -> Self? Returns the record identified by a primary key.
static func fetchCursor(_ db: Database, keys: some Collection<some DatabaseValueConvertible>) throws -> RecordCursor<Self> Returns a cursor over records identified by their primary keys.
static func fetchAll(_ db: Database, keys: some Collection<some DatabaseValueConvertible>) throws -> [Self] Returns an array of records identified by their primary keys.
static func fetchOne(_ db: Database, key: some DatabaseValueConvertible) throws -> Self? Returns the record identified by a primary key.
static func find(_ db: Database, id: ID) throws -> Self Returns the record identified by a primary key, or throws an error if the record does not exist.
static func find(_ db: Database, key: some DatabaseValueConvertible) throws -> Self Returns the record identified by a primary key, or throws an error if the record does not exist.
static func find(_ db: Database, key: [String : (any DatabaseValueConvertible)?]) throws -> Self Returns the record identified by a unique key (the primary key or any key with a unique index on it), or throws an error if the record does not exist.
static func fetchSet(_ db: Database) throws -> Set<Self> Returns a set of all records fetched from the database.
static func fetchSet(_ db: Database, keys: [[String : (any DatabaseValueConvertible)?]]) throws -> Set<Self> Returns a set of records identified by the provided unique keys (primary key or any key with a unique index on it).