Extensions

The following extensions are available globally.

Array, Sequence, Set extensions

  • Data is convertible to and from DatabaseValue.

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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:...) // Cursor of 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:...) // Cursor of 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

  • NSDate is stored in the database using the format yyyy-MM-dd HH:mm:ss.SSS, in the UTC time zone.

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  • Date is stored in the database using the format yyyy-MM-dd HH:mm:ss.SSS, in the UTC time zone.

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    Declaration

    Swift

    struct Date : ReferenceConvertible, Comparable, Equatable

  • NSData is convertible to and from DatabaseValue.

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    Declaration

    Swift

    class NSData : NSObject, NSCopying, NSMutableCopying, NSSecureCoding

Default Implementations

Swift String functions

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> where Bound : Strideable, Bound.Stride : SignedInteger
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    Declaration

    Swift

    struct CountableClosedRange<Bound> where 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 : FixedWidthInteger, SignedInteger

  • Int8 adopts DatabaseValueConvertible and StatementColumnConvertible.

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    Declaration

    Swift

    struct Int8 : FixedWidthInteger, SignedInteger

  • Int16 adopts DatabaseValueConvertible and StatementColumnConvertible.

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    Declaration

    Swift

    struct Int16 : FixedWidthInteger, SignedInteger

  • Int32 adopts DatabaseValueConvertible and StatementColumnConvertible.

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    Declaration

    Swift

    struct Int32 : FixedWidthInteger, SignedInteger

  • Int64 adopts DatabaseValueConvertible and StatementColumnConvertible.

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    Declaration

    Swift

    struct Int64 : FixedWidthInteger, SignedInteger

  • UInt adopts DatabaseValueConvertible and StatementColumnConvertible.

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    Declaration

    Swift

    struct UInt : FixedWidthInteger, UnsignedInteger

  • UInt8 adopts DatabaseValueConvertible and StatementColumnConvertible.

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    Declaration

    Swift

    struct UInt8 : FixedWidthInteger, UnsignedInteger

  • UInt16 adopts DatabaseValueConvertible and StatementColumnConvertible.

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    Declaration

    Swift

    struct UInt16 : FixedWidthInteger, UnsignedInteger

  • UInt32 adopts DatabaseValueConvertible and StatementColumnConvertible.

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    Declaration

    Swift

    struct UInt32 : FixedWidthInteger, UnsignedInteger

  • UInt64 adopts DatabaseValueConvertible and StatementColumnConvertible.

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    Declaration

    Swift

    struct UInt64 : FixedWidthInteger, UnsignedInteger

  • 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

  • NSURL stores its absoluteString in the database.

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