zeronull

package

v1.6.3 Latest Latest Go to latest Published: Mar 4, 2021 License: MIT Imports: 3 Imported by: 0

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Repository

github.com/teepark/pgtype

Links

Open Source Insights

Documentation ¶

Overview ¶

Package zeronull contains types that automatically convert between database NULLs and Go zero values.

Sometimes the distinction between a zero value and a NULL value is not useful at the application level. For example, in PostgreSQL an empty string may be stored as NULL. There is usually no application level distinction between an empty string and a NULL string. Package zeronull implements types that seamlessly convert between PostgreSQL NULL and the zero value.

It is recommended to convert types at usage time rather than instantiate these types directly. In the example below, middlename would be stored as a NULL.

firstname := "John"
middlename := ""
lastname := "Smith"
_, err := conn.Exec(
	ctx,
	"insert into people(firstname, middlename, lastname) values($1, $2, $3)",
	zeronull.Text(firstname),
	zeronull.Text(middlename),
	zeronull.Text(lastname),
)

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

This section is empty.

Types ¶

type Int2 ¶

type Int2 int16

func (*Int2) DecodeBinary ¶

func (dst *Int2) DecodeBinary(ci *pgtype.ConnInfo, src []byte) error

func (*Int2) DecodeText ¶

func (dst *Int2) DecodeText(ci *pgtype.ConnInfo, src []byte) error

func (Int2) EncodeBinary ¶

func (src Int2) EncodeBinary(ci *pgtype.ConnInfo, buf []byte) ([]byte, error)

func (Int2) EncodeText ¶

func (src Int2) EncodeText(ci *pgtype.ConnInfo, buf []byte) ([]byte, error)

func (*Int2) Scan ¶

func (dst *Int2) Scan(src interface{}) error

Scan implements the database/sql Scanner interface.

func (Int2) Value ¶

func (src Int2) Value() (driver.Value, error)

Value implements the database/sql/driver Valuer interface.

type Int4 ¶

type Int4 int32

func (*Int4) DecodeBinary ¶

func (dst *Int4) DecodeBinary(ci *pgtype.ConnInfo, src []byte) error

func (*Int4) DecodeText ¶

func (dst *Int4) DecodeText(ci *pgtype.ConnInfo, src []byte) error

func (Int4) EncodeBinary ¶

func (src Int4) EncodeBinary(ci *pgtype.ConnInfo, buf []byte) ([]byte, error)

func (Int4) EncodeText ¶

func (src Int4) EncodeText(ci *pgtype.ConnInfo, buf []byte) ([]byte, error)

func (*Int4) Scan ¶

func (dst *Int4) Scan(src interface{}) error

Scan implements the database/sql Scanner interface.

func (Int4) Value ¶

func (src Int4) Value() (driver.Value, error)

Value implements the database/sql/driver Valuer interface.

type Int8 ¶

type Int8 int64

func (*Int8) DecodeBinary ¶

func (dst *Int8) DecodeBinary(ci *pgtype.ConnInfo, src []byte) error

func (*Int8) DecodeText ¶

func (dst *Int8) DecodeText(ci *pgtype.ConnInfo, src []byte) error

func (Int8) EncodeBinary ¶

func (src Int8) EncodeBinary(ci *pgtype.ConnInfo, buf []byte) ([]byte, error)

func (Int8) EncodeText ¶

func (src Int8) EncodeText(ci *pgtype.ConnInfo, buf []byte) ([]byte, error)

func (*Int8) Scan ¶

func (dst *Int8) Scan(src interface{}) error

Scan implements the database/sql Scanner interface.

func (Int8) Value ¶

func (src Int8) Value() (driver.Value, error)

Value implements the database/sql/driver Valuer interface.

type Text ¶

type Text string

func (*Text) DecodeBinary ¶

func (dst *Text) DecodeBinary(ci *pgtype.ConnInfo, src []byte) error

func (*Text) DecodeText ¶

func (dst *Text) DecodeText(ci *pgtype.ConnInfo, src []byte) error

func (Text) EncodeBinary ¶

func (src Text) EncodeBinary(ci *pgtype.ConnInfo, buf []byte) ([]byte, error)

func (Text) EncodeText ¶

func (src Text) EncodeText(ci *pgtype.ConnInfo, buf []byte) ([]byte, error)

func (*Text) Scan ¶

func (dst *Text) Scan(src interface{}) error

Scan implements the database/sql Scanner interface.

func (Text) Value ¶

func (src Text) Value() (driver.Value, error)

Value implements the database/sql/driver Valuer interface.

type Timestamp ¶

type Timestamp time.Time

func (*Timestamp) DecodeBinary ¶

func (dst *Timestamp) DecodeBinary(ci *pgtype.ConnInfo, src []byte) error

func (*Timestamp) DecodeText ¶

func (dst *Timestamp) DecodeText(ci *pgtype.ConnInfo, src []byte) error

func (Timestamp) EncodeBinary ¶

func (src Timestamp) EncodeBinary(ci *pgtype.ConnInfo, buf []byte) ([]byte, error)

func (Timestamp) EncodeText ¶

func (src Timestamp) EncodeText(ci *pgtype.ConnInfo, buf []byte) ([]byte, error)

func (*Timestamp) Scan ¶

func (dst *Timestamp) Scan(src interface{}) error

Scan implements the database/sql Scanner interface.

func (Timestamp) Value ¶

func (src Timestamp) Value() (driver.Value, error)

Value implements the database/sql/driver Valuer interface.

type Timestamptz ¶

type Timestamptz time.Time

func (*Timestamptz) DecodeBinary ¶

func (dst *Timestamptz) DecodeBinary(ci *pgtype.ConnInfo, src []byte) error

func (*Timestamptz) DecodeText ¶

func (dst *Timestamptz) DecodeText(ci *pgtype.ConnInfo, src []byte) error

func (Timestamptz) EncodeBinary ¶

func (src Timestamptz) EncodeBinary(ci *pgtype.ConnInfo, buf []byte) ([]byte, error)

func (Timestamptz) EncodeText ¶

func (src Timestamptz) EncodeText(ci *pgtype.ConnInfo, buf []byte) ([]byte, error)

func (*Timestamptz) Scan ¶

func (dst *Timestamptz) Scan(src interface{}) error

Scan implements the database/sql Scanner interface.

func (Timestamptz) Value ¶

func (src Timestamptz) Value() (driver.Value, error)

Value implements the database/sql/driver Valuer interface.

type UUID ¶

type UUID [16]byte

func (*UUID) DecodeBinary ¶

func (dst *UUID) DecodeBinary(ci *pgtype.ConnInfo, src []byte) error

func (*UUID) DecodeText ¶

func (dst *UUID) DecodeText(ci *pgtype.ConnInfo, src []byte) error

func (UUID) EncodeBinary ¶

func (src UUID) EncodeBinary(ci *pgtype.ConnInfo, buf []byte) ([]byte, error)

func (UUID) EncodeText ¶

func (src UUID) EncodeText(ci *pgtype.ConnInfo, buf []byte) ([]byte, error)

func (*UUID) Scan ¶

func (dst *UUID) Scan(src interface{}) error

Scan implements the database/sql Scanner interface.

func (UUID) Value ¶

func (src UUID) Value() (driver.Value, error)

Value implements the database/sql/driver Valuer interface.

Source Files ¶

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