Gorm Binary UUID binary(16)

Integrating GORM uuid implementation using new binary(16) uuid implementation available in mysql version 8.

BinaryUUID

• Wraps uuid.UUID inside and converts into binary when needed.
• Implements Gorm Scan and Value for data type conversion.
• Implements GormDataType for data type in sql.
• MarshalJSON and UnmarshalJSON implementation for json encode/decode.

GORM's BeforeCreate

BeforeCreate hook for creating new uuids whenever new data has to be inserted.

// BeforeCreate ->
func (t *Test) BeforeCreate(tx *gorm.DB) error {
	id, err := uuid.NewRandom()
	t.ID = BinaryUUID(id)
	return err
}

Usage

Where statement:

model := Test{}
db.Find(&model, "id = ?", ParseUUID("ed67a4b2-8f77-4d18-8c58-0508e7b207e8"))
log.Printf("data: %+v\n", model)

Create statement:

Will autogenerate uuid automatically because of BeforeCreate hook added

data := Test{Name: fmt.Sprintf("Time is: %s", time.Now())}
db.Create(&data)

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