精简后的项目：仅保留 api/ui 源码、文档、构建依赖

api/database/drivers/database_drivers.go

@@ -0,0 +1,55 @@
+package drivers
+
+import (
+	"strings"
+
+	"github.com/photoview/photoview/api/utils"
+	"gorm.io/gorm"
+)
+
+// DatabaseDriverType represents the name of a database driver
+type DatabaseDriverType string
+
+const (
+	MYSQL    DatabaseDriverType = "mysql"
+	SQLITE   DatabaseDriverType = "sqlite"
+	POSTGRES DatabaseDriverType = "postgres"
+)
+
+func DatabaseDriverFromEnv() DatabaseDriverType {
+
+	var driver DatabaseDriverType
+	driverString := strings.ToLower(utils.EnvDatabaseDriver.GetValue())
+
+	switch driverString {
+	case "mysql":
+		driver = MYSQL
+	case "sqlite":
+		driver = SQLITE
+	case "postgres":
+		driver = POSTGRES
+	default:
+		driver = MYSQL
+	}
+
+	return driver
+}
+
+func (driver DatabaseDriverType) MatchDatabase(db *gorm.DB) bool {
+	return db.Dialector.Name() == string(driver)
+}
+
+func GetDatabaseDriverType(db *gorm.DB) (driver DatabaseDriverType) {
+	switch db.Dialector.Name() {
+	case "mysql":
+		driver = MYSQL
+	case "sqlite":
+		driver = SQLITE
+	case "postgres":
+		driver = POSTGRES
+	default:
+		driver = MYSQL
+	}
+
+	return
+}