61 lines
1.5 KiB
Go
61 lines
1.5 KiB
Go
package entity
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import (
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"fmt"
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"reflect"
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"strings"
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)
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// Save updates an entity in the database, or inserts if it doesn't exist.
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func Save(m interface{}, primaryKeys ...string) (err error) {
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defer func() {
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if r := recover(); r != nil {
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err = fmt.Errorf("save: %s (panic)", r)
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log.Error(err)
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}
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}()
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if err := Update(m, primaryKeys...); err == nil {
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return nil
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} else if err := UnscopedDb().Save(m).Error; err == nil {
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return nil
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} else if !strings.Contains(strings.ToLower(err.Error()), "lock") {
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return err
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} else if err := UnscopedDb().Save(m).Error; err != nil {
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return err
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}
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return nil
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}
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// Update updates an existing entity in the database.
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func Update(m interface{}, primaryKeys ...string) (err error) {
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defer func() {
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if r := recover(); r != nil {
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err = fmt.Errorf("update: %s (panic)", r)
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log.Error(err)
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}
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}()
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v := reflect.ValueOf(m).Elem()
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// Abort if a primary key is zero.
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for _, k := range primaryKeys {
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if field := v.FieldByName(k); field.IsZero() {
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return fmt.Errorf("key '%s' not found", k)
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}
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}
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// Update all values except primary keys.
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if res := UnscopedDb().Model(m).Updates(GetValues(m, primaryKeys...)); res.Error != nil {
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return res.Error
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} else if res.RowsAffected > 1 {
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log.Warnf("update: more than one row affected")
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} else if res.RowsAffected == 0 {
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// MariaDB may report zero rows in case no data was actually changed, even though the row exists.
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log.Tracef("update: no rows affected")
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}
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return nil
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}
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