mirror of https://github.com/go-gorm/gorm.git
42 lines
923 B
Markdown
42 lines
923 B
Markdown
## Transactions
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To perform a set of operations within a transaction, the general flow is as below.
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The database handle returned from ``` db.Begin() ``` should be used for all operations within the transaction.
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(Note that all individual save and delete operations are run in a transaction by default.)
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```go
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// begin
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tx := db.Begin()
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// do some database operations (use 'tx' from this point, not 'db')
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tx.Create(...)
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...
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// rollback in case of error
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tx.Rollback()
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// Or commit if all is ok
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tx.Commit()
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```
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### A Specific Example
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```
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func CreateAnimals(db *gorm.DB) err {
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tx := db.Begin()
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// Note the use of tx as the database handle once you are within a transaction
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if err := tx.Create(&Animal{Name: "Giraffe"}).Error; err != nil {
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tx.Rollback()
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return err
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}
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if err := tx.Create(&Animal{Name: "Lion"}).Error; err != nil {
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tx.Rollback()
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return err
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}
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tx.Commit()
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return nil
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}
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```
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