dbtypes

type NullFloat32 ¶

type NullFloat32 struct {
	// contains filtered or unexported fields
}

NullFloat64 represents a float64 that may be null.

NullInt64 implements - encoding/json.Mashaller - encoding/json.Unmarshaller - sql.Scanner - sql/driver.Valuer

func (this NullFloat32) Get() float32

func (this NullFloat32) IsNull() bool

func (this NullFloat32) MarshalJSON() ([]byte, error)

func (this *NullFloat32) Scan(value interface{}) error

func (this NullFloat32) Set(v *float32)

func (this NullFloat32) UnmarshalJSON(bytes []byte) error

func (this NullFloat32) Value() (driver.Value, error)

type NullFloat64 ¶

type NullFloat64 struct {
	// contains filtered or unexported fields
}

NullFloat64 represents a float64 that may be null.

NullInt64 implements - encoding/json.Mashaller - encoding/json.Unmarshaller - sql.Scanner - sql/driver.Valuer

func (this NullFloat64) Get() float64

func (this NullFloat64) IsNull() bool

func (this NullFloat64) MarshalJSON() ([]byte, error)

func (this *NullFloat64) Scan(value interface{}) error

func (this NullFloat64) Set(v *float64)

func (this NullFloat64) UnmarshalJSON(bytes []byte) error

func (this NullFloat64) Value() (driver.Value, error)

type NullInt16 ¶ added in v1.1.0

type NullInt16 struct {
	// contains filtered or unexported fields
}

NullInt16 represents an int16 that may be null.

NullInt64 implements - encoding/json.Mashaller - encoding/json.Unmarshaller - sql.Scanner - sql/driver.Valuer

func (this NullInt16) Get() int16

func (this NullInt16) IsNull() bool

func (this NullInt16) MarshalJSON() ([]byte, error)

func (this *NullInt16) Scan(value interface{}) error

func (this NullInt16) Set(v *int16)

func (this NullInt16) UnmarshalJSON(bytes []byte) error

func (this NullInt16) Value() (driver.Value, error)

type NullInt32 ¶

type NullInt32 struct {
	// contains filtered or unexported fields
}

NullInt32 represents an int64 that may be null.

NullInt64 implements - encoding/json.Mashaller - encoding/json.Unmarshaller - sql.Scanner - sql/driver.Valuer

func (this NullInt32) Get() int32

func (this NullInt32) IsNull() bool

func (this NullInt32) MarshalJSON() ([]byte, error)

func (this *NullInt32) Scan(value interface{}) error

func (this NullInt32) Set(v *int32)

func (this NullInt32) UnmarshalJSON(bytes []byte) error

func (this NullInt32) Value() (driver.Value, error)

type NullInt64 ¶

type NullInt64 struct {
	// contains filtered or unexported fields
}

NullInt64 represents an int64 that may be null.

NullInt64 implements - encoding/json.Mashaller - encoding/json.Unmarshaller - sql.Scanner - sql/driver.Valuer

func (this NullInt64) Get() int64

func (this NullInt64) IsNull() bool

func (this NullInt64) MarshalJSON() ([]byte, error)

func (this *NullInt64) Scan(value interface{}) error

func (this NullInt64) Set(v *int64)

func (this NullInt64) UnmarshalJSON(bytes []byte) error

func (this NullInt64) Value() (driver.Value, error)

type NullInt8 ¶

type NullInt8 struct {
	// contains filtered or unexported fields
}

NullInt8 represents an int64 that may be null.

NullInt64 implements - encoding/json.Mashaller - encoding/json.Unmarshaller - sql.Scanner - sql/driver.Valuer

func (this NullInt8) Get() int8

func (this NullInt8) IsNull() bool

func (this NullInt8) MarshalJSON() ([]byte, error)

func (this *NullInt8) Scan(value interface{}) error

func (this NullInt8) Set(v *int8)

func (this NullInt8) UnmarshalJSON(bytes []byte) error

func (this NullInt8) Value() (driver.Value, error)

type NullString ¶

type NullString struct {
	// contains filtered or unexported fields
}

NullString represents a string that may be null.

NullString implements - encoding/json.Mashaller - encoding/json.Unmarshaller - sql.Scanner - sql/driver.Valuer

Example Usage:

var s NullString
err := db.QueryRow("SELECT name FROM foo WHERE id=?", id).Scan(&s)
...
if !s.IsNull() {
  // use s.Get()
} else {
  // NULL value
}

func (n NullString) Get() string

func (n NullString) IsNull() bool

func (this NullString) MarshalJSON() ([]byte, error)

func (this *NullString) Scan(value interface{}) error

func (n NullString) Set(v *string)

func (this NullString) UnmarshalJSON(bytes []byte) error

func (this NullString) Value() (driver.Value, error)