Extensions

The following extensions are available globally.

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    Declaration

    Swift

    struct Array<Element> : RandomAccessCollection, MutableCollection
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    Declaration

    Swift

    protocol Sequence

Encryption

Encryption

DatabaseValueConvertible

  • Swift’s Optional comes with built-in methods that allow to fetch cursors and arrays of optional DatabaseValueConvertible:

    try Optional<String>.fetchCursor(db, "SELECT name FROM ...", arguments:...) // DatabaseCursor<String?>
try Optional<String>.fetchAll(db, "SELECT name FROM ...", arguments:...)    // [String?]

let statement = try db.makeSelectStatement("SELECT name FROM ...")
try Optional<String>.fetchCursor(statement, arguments:...) // DatabaseCursor<String?>
try Optional<String>.fetchAll(statement, arguments:...)    // [String?]

    DatabaseValueConvertible is adopted by Bool, Int, String, etc.

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    Declaration

    Swift

    enum Optional<Wrapped> : ExpressibleByNilLiteral

  • NSData is convertible to and from DatabaseValue.

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    Declaration

    Swift

    class NSData : NSObject, NSCopying, NSMutableCopying, NSSecureCoding

  • DatabaseValueConvertible is free for RawRepresentable types whose raw value is itself DatabaseValueConvertible.

    // If the RawValue adopts DatabaseValueConvertible...
enum Color : Int {
    case red
    case white
    case rose
}

// ... then the RawRepresentable type can freely adopt DatabaseValueConvertible:
extension Color : DatabaseValueConvertible { /* empty */ }
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    Declaration

    Swift

    protocol RawRepresentable

  • DatabaseValueConvertible is free for ReferenceConvertible types whose ReferenceType is itself DatabaseValueConvertible.

    class FooReference { ... }
struct Foo : ReferenceConvertible {
    typealias ReferenceType = FooReference
}

// If the ReferenceType adopts DatabaseValueConvertible...
extension FooReference : DatabaseValueConvertible { ... }

// ... then the ReferenceConvertible type can freely adopt DatabaseValueConvertible:
extension Foo : DatabaseValueConvertible { /* empty */ }
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    Declaration

    Swift

    protocol ReferenceConvertible : CustomStringConvertible, CustomDebugStringConvertible, Hashable, Equatable

Inclusion Operators (BETWEEN, IN)
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    Declaration

    Swift

    struct Range<Bound> where Bound : Comparable
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    Declaration

    Swift

    struct ClosedRange<Bound> where Bound : Comparable
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    Declaration

    Swift

    struct CountableRange<Bound> : RandomAccessCollection where Bound : Comparable, Bound : _Strideable, Bound.Stride : SignedInteger
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    Declaration

    Swift

    struct CountableClosedRange<Bound> : RandomAccessCollection where Bound : Comparable, Bound : _Strideable, Bound.Stride : SignedInteger

Value Types

  • Bool adopts DatabaseValueConvertible and StatementColumnConvertible.

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    Declaration

    Swift

    struct Bool
  • Int

    Int adopts DatabaseValueConvertible and StatementColumnConvertible.

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    Declaration

    Swift

    struct Int : SignedInteger, Comparable, Equatable

  • Int32 adopts DatabaseValueConvertible and StatementColumnConvertible.

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    Declaration

    Swift

    struct Int32 : SignedInteger, Comparable, Equatable

  • Int64 adopts DatabaseValueConvertible and StatementColumnConvertible.

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    Declaration

    Swift

    struct Int64 : SignedInteger, Comparable, Equatable

  • Double adopts DatabaseValueConvertible and StatementColumnConvertible.

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    Declaration

    Swift

    struct Double

  • Float adopts DatabaseValueConvertible and StatementColumnConvertible.

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    Declaration

    Swift

    struct Float

  • String adopts DatabaseValueConvertible and StatementColumnConvertible.

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    Declaration

    Swift

    struct String