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backup_model.go
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/
backup_model.go
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package models
import (
"context"
"database/sql"
"errors"
backupservice "github.com/opdev/backup-handler/gen/backup_service"
)
// CreateBackup adds backup request to database
func CreateBackup(backup *backupservice.Backupresult) error {
db, err := connect()
if err != nil {
return err
}
if err := db.Ping(); err != nil {
return err
}
return createBackup(context.Background(), db, backup)
}
func createBackup(ctx context.Context, db *sql.DB, backup *backupservice.Backupresult) error {
query := `INSERT INTO backups(created_at, id, name, namespace, state, pod, container,
command, storage_secret, kube_resource) VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`
stmt, err := db.PrepareContext(ctx, query)
if err != nil {
return err
}
defer db.Close()
results, err := stmt.ExecContext(ctx,
backup.CreatedAt,
backup.ID,
backup.Name,
backup.Namespace,
backup.State,
backup.Pod,
backup.Container,
backup.Command,
backup.StorageSecret,
backup.KubernetesResource,
)
if err != nil {
return err
}
defer stmt.Close()
count, err := results.RowsAffected()
if err != nil {
return err
}
if count == 0 {
return errors.New("error adding record")
}
return nil
}
// GetBackup returns a specific backup objecy=t
func GetBackup(backup *backupservice.Backupresult) error {
db, err := connect()
if err != nil {
return err
}
return getBackup(context.Background(), db, backup)
}
func getBackup(ctx context.Context, db *sql.DB, backup *backupservice.Backupresult) error {
query := `SELECT created_at, updated_at, deleted_at, id, name, namespace, state, pod, container,
command, backup_location, storage_secret, kube_resource FROM backups WHERE id = ?`
var location sql.NullString
row := db.QueryRowContext(ctx, query, backup.ID)
if err := row.Scan(
&backup.CreatedAt,
&backup.UpdatedAt,
&backup.DeletedAt,
&backup.ID,
&backup.Name,
&backup.Namespace,
&backup.State,
&backup.Pod,
&backup.Container,
&backup.Command,
&location,
&backup.StorageSecret,
&backup.KubernetesResource,
); err != nil {
return err
}
// Bug Fix: use location place holder since backup.UploadLocation could be NULL
// This is needed since the database/sql package can not handle NULL values
if location.Valid {
backup.Location = &location.String
}
return nil
}
// UpdateBackup updates the properties of a backup resource
func UpdateBackup(backup *backupservice.Backupresult) (int64, error) {
db, err := connect()
if err != nil {
return 0, err
}
if err := db.Ping(); err != nil {
return 0, err
}
// mark
if backup.DeletedAt != nil {
return deleteBackup(context.Background(), db, backup)
}
return updateBackup(context.Background(), db, backup)
}
// TODO: cleanup function implementation
func updateBackup(ctx context.Context, db *sql.DB, backup *backupservice.Backupresult) (int64, error) {
query := `UPDATE backups SET updated_at = ?, name = ?, state = ?, pod = ?, container = ?,
command = ?, backup_location = ?, storage_secret = ?, kube_resource = ? WHERE id = ?`
stmt, err := db.PrepareContext(ctx, query)
if err != nil {
return 0, err
}
defer db.Close()
defer stmt.Close()
results, err := stmt.ExecContext(ctx,
backup.UpdatedAt,
backup.Name,
backup.State,
backup.Pod,
backup.Container,
backup.Command,
backup.Location,
backup.StorageSecret,
backup.KubernetesResource,
backup.ID,
)
if err != nil {
return 0, err
}
return results.RowsAffected()
}
// DeleteBackup marks a backup request deleted on completion or cancellation
func DeleteBackup(backup *backupservice.Backupresult) (int64, error) {
db, err := connect()
if err != nil {
return 0, err
}
if err := db.Ping(); err != nil {
return 0, err
}
return deleteBackup(context.Background(), db, backup)
}
func deleteBackup(ctx context.Context, db *sql.DB, backup *backupservice.Backupresult) (int64, error) {
query := `UPDATE backups SET deleted_at = ?, state = ?, backup_location = ? WHERE id = ?`
stmt, err := db.PrepareContext(ctx, query)
if err != nil {
return 0, err
}
defer db.Close()
defer stmt.Close()
results, err := stmt.ExecContext(ctx,
backup.DeletedAt,
backup.State,
backup.Location,
backup.ID,
)
if err != nil {
return 0, err
}
return results.RowsAffected()
}