Fix some typos and update db transaction demo in backend guideline (#21322)
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
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1 changed files with 14 additions and 18 deletions
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@ -67,22 +67,18 @@ Some actions should allow for rollback when database record insertion/update/del
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So services must be allowed to create a database transaction. Here is some example,
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```go
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// servcies/repository/repo.go
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func CreateXXXX() error {\
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ctx, committer, err := db.TxContext()
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if err != nil {
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return err
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}
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defer committer.Close()
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// do something, if return err, it will rollback automatically when `committer.Close()` is invoked.
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if err := issues.UpdateIssue(ctx, repoID); err != nil {
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// ...
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}
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// ......
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return committer.Commit()
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// services/repository/repository.go
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func CreateXXXX() error {
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return db.WithTx(func(ctx context.Context) error {
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e := db.GetEngine(ctx)
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// do something, if err is returned, it will rollback automatically
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if err := issues.UpdateIssue(ctx, repoID); err != nil {
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// ...
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return err
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}
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// ...
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return nil
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})
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}
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```
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@ -94,14 +90,14 @@ If the function will be used in the transaction, just let `context.Context` as t
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func UpdateIssue(ctx context.Context, repoID int64) error {
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e := db.GetEngine(ctx)
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// ......
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// ...
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}
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```
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### Package Name
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For the top level package, use a plural as package name, i.e. `services`, `models`, for sub packages, use singular,
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i.e. `servcies/user`, `models/repository`.
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i.e. `services/user`, `models/repository`.
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### Import Alias
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