fasten-onprem/backend/pkg/database/sqlite_repository.go

97 lines
3.5 KiB
Go

package database
import (
"context"
"fmt"
"github.com/fastenhealth/fastenhealth-onprem/backend/pkg/config"
"github.com/fastenhealth/fastenhealth-onprem/backend/pkg/models"
"github.com/glebarez/sqlite"
"github.com/sirupsen/logrus"
"gorm.io/gorm"
"net/url"
)
func NewRepository(appConfig config.Interface, globalLogger logrus.FieldLogger) (DatabaseRepository, error) {
//backgroundContext := context.Background()
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Gorm/SQLite setup
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
globalLogger.Infof("Trying to connect to sqlite db: %s\n", appConfig.GetString("web.database.location"))
// When a transaction cannot lock the database, because it is already locked by another one,
// SQLite by default throws an error: database is locked. This behavior is usually not appropriate when
// concurrent access is needed, typically when multiple processes write to the same database.
// PRAGMA busy_timeout lets you set a timeout or a handler for these events. When setting a timeout,
// SQLite will try the transaction multiple times within this timeout.
// fixes #341
// https://rsqlite.r-dbi.org/reference/sqlitesetbusyhandler
// retrying for 30000 milliseconds, 30seconds - this would be unreasonable for a distributed multi-tenant application,
// but should be fine for local usage.
pragmaStr := sqlitePragmaString(map[string]string{
"busy_timeout": "30000",
})
database, err := gorm.Open(sqlite.Open(appConfig.GetString("web.database.location")+pragmaStr), &gorm.Config{
//TODO: figure out how to log database queries again.
//Logger: logger
DisableForeignKeyConstraintWhenMigrating: true,
})
if err != nil {
return nil, fmt.Errorf("Failed to connect to database! - %v", err)
}
globalLogger.Infof("Successfully connected to scrutiny sqlite db: %s\n", appConfig.GetString("web.database.location"))
//TODO: automigrate for now
err = database.AutoMigrate(&models.User{})
if err != nil {
return nil, fmt.Errorf("Failed to automigrate! - %v", err)
}
err = database.AutoMigrate(&models.ProviderCredential{})
if err != nil {
return nil, fmt.Errorf("Failed to automigrate! - %v", err)
}
deviceRepo := sqliteRepository{
appConfig: appConfig,
logger: globalLogger,
gormClient: database,
}
return &deviceRepo, nil
}
type sqliteRepository struct {
appConfig config.Interface
logger logrus.FieldLogger
gormClient *gorm.DB
}
func (sr *sqliteRepository) Close() error {
return nil
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// DeviceSummary
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
func (sr *sqliteRepository) CreateProviderCredentials(ctx context.Context, providerCreds models.ProviderCredential) error {
return sr.gormClient.WithContext(ctx).Create(&providerCreds).Error
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Utilities
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
func sqlitePragmaString(pragmas map[string]string) string {
q := url.Values{}
for key, val := range pragmas {
q.Add("_pragma", key+"="+val)
}
queryStr := q.Encode()
if len(queryStr) > 0 {
return "?" + queryStr
}
return ""
}