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|
package model
import (
"database/sql"
"embed"
"log"
"fmt"
_ "github.com/mattn/go-sqlite3"
)
var db *sql.DB
//go:embed sql/*.sql
var sqlCode embed.FS
func GetSql(code string) (string, error) {
query, err := sqlCode.ReadFile("sql/" + code + ".sql")
if err != nil {
return "", err
}
return string(query), nil
}
func ConnectDatabase(path string) {
var err error
db, err = sql.Open("sqlite3", path)
if err != nil {
log.Fatal(err)
}
err = db.Ping()
if err != nil {
log.Fatal(err)
}
}
func Transaction(f func(*sql.Tx) error) error {
tx, err := db.Begin()
if err != nil {
return err
}
err = f(tx)
if err != nil {
rollbackErr := tx.Rollback()
if rollbackErr != nil {
return fmt.Errorf("Failed rollback '%w' after failed transaction '%w'", rollbackErr, err)
}
}
return tx.Commit()
}
func MigrateDatabase() {
query, err := GetSql(`migrate`)
if err != nil {
log.Fatal(err)
}
err = Transaction(func(tx *sql.Tx) error {
_, err := tx.Exec(query)
if err != nil {
return err
}
return nil
})
if err != nil {
log.Fatalf("Migration failed: %v\n", err)
}
}
func InjectTestRecipes() {
Transaction(func(tx *sql.Tx) error {
recipes := RecipeTestData()
for _, recipe := range recipes {
err := recipe.Create(tx)
if err != nil {
return err
}
}
return nil
})
}
func DisconnectDatabase() {
var err error = db.Close()
if err != nil {
log.Printf("Failed to close database: %v\n", err)
} else {
log.Println("Closed database")
}
}
|
