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Documentation

Index

• type Float
  • func FloatFrom(f float64) Float
  • func FloatFromPtr(f *float64) Float
  • func NewFloat(f float64, valid bool) Float
  • func (f Float) IsZero() bool
  • func (f Float) MarshalJSON() ([]byte, error)
  • func (f Float) MarshalText() ([]byte, error)
  • func (f Float) Ptr() *float64
  • func (f *Float) SetValid(n float64)
  • func (f Float) String() string
  • func (f *Float) UnmarshalJSON(data []byte) error
  • func (f *Float) UnmarshalText(text []byte) error

Types

type Float

type Float struct {
	sql.NullFloat64
}

Float is a nullable float64. It does not consider zero values to be null. It will decode to null, not zero, if null.

func FloatFrom

func FloatFrom(f float64) Float

FloatFrom creates a new Float that will always be valid.

func FloatFromPtr

func FloatFromPtr(f *float64) Float

FloatFromPtr creates a new Float that be null if f is nil.

func NewFloat

func NewFloat(f float64, valid bool) Float

NewFloat creates a new Float

func (Float) IsZero

func (f Float) IsZero() bool

IsZero returns true for invalid Floats, for future omitempty support (Go 1.4?) A non-null Float with a 0 value will not be considered zero.

func (Float) MarshalJSON

func (f Float) MarshalJSON() ([]byte, error)

MarshalJSON implements json.Marshaler. It will encode null if this Float is null.

func (Float) MarshalText

func (f Float) MarshalText() ([]byte, error)

MarshalText implements encoding.TextMarshaler. It will encode a blank string if this Float is null.

func (Float) Ptr

func (f Float) Ptr() *float64

Ptr returns a pointer to this Float's value, or a nil pointer if this Float is null.

func (*Float) SetValid

func (f *Float) SetValid(n float64)

SetValid changes this Float's value and also sets it to be non-null.

func (Float) String

func (f Float) String() string

MarshalText implements encoding.TextMarshaler. It will encode a blank string if this Float is null.

func (*Float) UnmarshalJSON

func (f *Float) UnmarshalJSON(data []byte) error

UnmarshalJSON implements json.Unmarshaler. It supports number and null input. 0 will not be considered a null Float. It also supports unmarshalling a sql.NullFloat64.

func (*Float) UnmarshalText

func (f *Float) UnmarshalText(text []byte) error

UnmarshalText implements encoding.TextUnmarshaler. It will unmarshal to a null Float if the input is a blank or not an integer. It will return an error if the input is not an integer, blank, or "null".