t2/models/persistence.go

59 lines
1.2 KiB
Go

package models
import (
"context"
"database/sql"
"fmt"
"github.com/uptrace/bun"
"github.com/uptrace/bun/dialect/sqlitedialect"
"github.com/uptrace/bun/driver/sqliteshim"
)
type Persistence interface {
CreateCapture(context.Context, *Capture) error
GetCaptures(context.Context) ([]Capture, error)
}
type SQLitePersistence struct {
db *bun.DB
}
func NewSQLitePersistence(dbloc string) (*SQLitePersistence, error) {
sqldb, err := sql.Open(sqliteshim.ShimName, fmt.Sprintf("file:%s", dbloc))
if err != nil {
return nil, err
}
db := bun.NewDB(sqldb, sqlitedialect.New())
ctx := context.Background()
for _, model := range []interface{}{(*Capture)(nil), (*MapScore)(nil), (*Score)(nil)} {
_, err := db.NewCreateTable().Model(model).IfNotExists().Exec(ctx)
if err != nil {
return nil, err
}
}
return &SQLitePersistence{
db,
}, nil
}
func (s *SQLitePersistence) GetCaptures(ctx context.Context) ([]Capture, error) {
var captures []Capture
err := s.db.NewSelect().Model(&captures).Scan(ctx)
if err != nil {
return nil, err
}
return captures, nil
}
func (s *SQLitePersistence) CreateCapture(ctx context.Context, capture *Capture) error {
_, err := s.db.NewInsert().Model(capture).Exec(ctx)
return err
}