refac: atomic merge, lost-update race, RunPurge cost, duplicated walks

internal/domain/transaction/transactionDomain.go

@@ -0,0 +1,22 @@
+package transaction
+
+import (
+	"RenewCMS/internal/domain/article"
+	"RenewCMS/internal/domain/author"
+	"RenewCMS/internal/domain/entry"
+	"RenewCMS/internal/domain/image"
+	"RenewCMS/internal/domain/site"
+	"context"
+)
+
+type Repositories struct {
+	Articles article.Repository
+	Sites    site.Repository
+	Authors  author.Repository
+	Entries  entry.Repository
+	Images   image.Repository
+}
+
+type Transactor interface {
+	Run(ctx context.Context, work func(Repositories) error) error
+}