Envelope/Backend/Database/MessageData.go

package Database

import (
	"github.com/gofrs/uuid"
	"gorm.io/gorm"
	"gorm.io/gorm/clause"
)

// MessageData holds the content of the message
// encrypted through the Message.SymmetricKey
type MessageData struct {
	Base
	Data         string     `                json:"data"` // Stored encrypted
	AttachmentID *uuid.UUID `                json:"attachment_id"`
	Attachment   Attachment `                json:"attachment"`
	SenderID     string     `gorm:"not null" json:"sender_id"`     // Stored encrypted
	SymmetricKey string     `gorm:"not null" json:"symmetric_key"` // Stored encrypted
}

func GetMessageDataById(id string) (MessageData, error) {
	var (
		messageData MessageData
		err         error
	)

	err = DB.Preload(clause.Associations).
		First(&messageData, "id = ?", id).
		Error

	return messageData, err
}

func (messageData *MessageData) CreateMessageData() error {
	var (
		err error
	)

	err = DB.Session(&gorm.Session{FullSaveAssociations: true}).
		Create(messageData).
		Error

	return err
}

func (messageData *MessageData) DeleteMessageData() error {
	return DB.Session(&gorm.Session{FullSaveAssociations: true}).
		Delete(messageData).
		Error
}