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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,73 @@ | ||
| package gintx | ||
|
|
||
| import ( | ||
| "encoding/json" | ||
| "github.com/gin-gonic/gin" | ||
| "github.com/sirupsen/logrus" | ||
| "gorm.io/gorm" | ||
| "net/http" | ||
| ) | ||
|
|
||
| const contextKeyGormTransaction = "gorm_tx" | ||
|
|
||
| func GetGormTransaction(ctx *gin.Context) *gorm.DB { | ||
| tx, ok := ctx.Get(contextKeyGormTransaction) | ||
| if !ok { | ||
| return nil | ||
| } | ||
|
|
||
| gormTx := tx.(*gorm.DB) | ||
| return gormTx | ||
| } | ||
|
|
||
| func SetGormTransaction(ctx *gin.Context, tx *gorm.DB) { | ||
| ctx.Set(contextKeyGormTransaction, tx) | ||
| } | ||
|
|
||
| func BuildGormTransactionMiddleware(db *gorm.DB) gin.HandlerFunc { | ||
| return func(ctx *gin.Context) { | ||
| tx := db.Begin() | ||
| if tx.Error != nil { | ||
| logrus.WithField("error", tx.Error.Error()).Error("Cannot begin Gorm transaction.") | ||
| ctx.AbortWithStatus(http.StatusInternalServerError) | ||
| return | ||
| } | ||
|
|
||
| SetGormTransaction(ctx, tx) | ||
|
|
||
| defer func() { | ||
| if err := recover(); err != nil { | ||
| encodedError, marshalError := json.Marshal(err) | ||
| if marshalError != nil { | ||
| encodedError = []byte("MARSHAL_ERROR") | ||
| } | ||
|
|
||
| logrus.WithField("error", string(encodedError)).Info("Starting Gorm recovery process.") | ||
|
|
||
| err := tx.Rollback().Error | ||
| if err != nil { | ||
| logrus.WithField("error", err.Error()).Error("Cannot rollback Gorm transaction.") | ||
| return | ||
| } | ||
| } else if ctx.Writer.Status() >= http.StatusInternalServerError { | ||
| logrus.Debug("Starting Gorm rollback due to internal server error status code.") | ||
|
|
||
| err := tx.Rollback().Error | ||
| if err != nil { | ||
| logrus.WithField("error", err.Error()).Error("Cannot rollback Gorm transaction.") | ||
| return | ||
| } | ||
| } else { | ||
| logrus.Debug("Starting Gorm commit.") | ||
|
|
||
| err := tx.Commit().Error | ||
| if err != nil { | ||
| logrus.WithField("error", err.Error()).Error("Cannot commit Gorm transaction.") | ||
| return | ||
| } | ||
| } | ||
| }() | ||
|
|
||
| ctx.Next() | ||
| } | ||
| } |