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optimization callbacks/create.go Create func if...else logic

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This commit is contained in:
daheige 2021-05-27 22:50:55 +08:00
parent c27b80ab28
commit 5dbcc21152
1 changed files with 61 additions and 56 deletions
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117
callbacks/create.go
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@ -33,75 +33,80 @@ func BeforeCreate(db *gorm.DB) {
func Create(config *Config) func(db *gorm.DB) {
if config.WithReturning {
return CreateWithReturning
} else {
return func(db *gorm.DB) {
if db.Error == nil {
if db.Statement.Schema != nil && !db.Statement.Unscoped {
for _, c := range db.Statement.Schema.CreateClauses {
db.Statement.AddClause(c)
}
}
}
if db.Statement.SQL.String() == "" {
db.Statement.SQL.Grow(180)
db.Statement.AddClauseIfNotExists(clause.Insert{})
db.Statement.AddClause(ConvertToCreateValues(db.Statement))
return func(db *gorm.DB) {
if db.Error != nil {
// maybe record logger TODO
return
}
db.Statement.Build(db.Statement.BuildClauses...)
}
if db.Statement.Schema != nil && !db.Statement.Unscoped {
for _, c := range db.Statement.Schema.CreateClauses {
db.Statement.AddClause(c)
}
}
if !db.DryRun && db.Error == nil {
result, err := db.Statement.ConnPool.ExecContext(db.Statement.Context, db.Statement.SQL.String(), db.Statement.Vars...)
if db.Statement.SQL.String() == "" {
db.Statement.SQL.Grow(180)
db.Statement.AddClauseIfNotExists(clause.Insert{})
db.Statement.AddClause(ConvertToCreateValues(db.Statement))
if err == nil {
db.RowsAffected, _ = result.RowsAffected()
db.Statement.Build(db.Statement.BuildClauses...)
}
if db.RowsAffected > 0 {
if db.Statement.Schema != nil && db.Statement.Schema.PrioritizedPrimaryField != nil && db.Statement.Schema.PrioritizedPrimaryField.HasDefaultValue {
if insertID, err := result.LastInsertId(); err == nil && insertID > 0 {
switch db.Statement.ReflectValue.Kind() {
case reflect.Slice, reflect.Array:
if config.LastInsertIDReversed {
for i := db.Statement.ReflectValue.Len() - 1; i >= 0; i-- {
rv := db.Statement.ReflectValue.Index(i)
if reflect.Indirect(rv).Kind() != reflect.Struct {
break
}
if !db.DryRun && db.Error == nil {
result, err := db.Statement.ConnPool.ExecContext(db.Statement.Context, db.Statement.SQL.String(), db.Statement.Vars...)
_, isZero := db.Statement.Schema.PrioritizedPrimaryField.ValueOf(rv)
if isZero {
db.Statement.Schema.PrioritizedPrimaryField.Set(rv, insertID)
insertID -= db.Statement.Schema.PrioritizedPrimaryField.AutoIncrementIncrement
}
}
} else {
for i := 0; i < db.Statement.ReflectValue.Len(); i++ {
rv := db.Statement.ReflectValue.Index(i)
if reflect.Indirect(rv).Kind() != reflect.Struct {
break
}
if err != nil {
db.AddError(err)
}
if _, isZero := db.Statement.Schema.PrioritizedPrimaryField.ValueOf(rv); isZero {
db.Statement.Schema.PrioritizedPrimaryField.Set(rv, insertID)
insertID += db.Statement.Schema.PrioritizedPrimaryField.AutoIncrementIncrement
}
}
}
case reflect.Struct:
if _, isZero := db.Statement.Schema.PrioritizedPrimaryField.ValueOf(db.Statement.ReflectValue); isZero {
db.Statement.Schema.PrioritizedPrimaryField.Set(db.Statement.ReflectValue, insertID)
}
}
} else {
db.AddError(err)
db.RowsAffected, _ = result.RowsAffected()
if !(db.RowsAffected > 0) {
return
}
if db.Statement.Schema != nil && db.Statement.Schema.PrioritizedPrimaryField != nil && db.Statement.Schema.PrioritizedPrimaryField.HasDefaultValue {
if insertID, err := result.LastInsertId(); err == nil && insertID > 0 {
switch db.Statement.ReflectValue.Kind() {
case reflect.Slice, reflect.Array:
if config.LastInsertIDReversed {
for i := db.Statement.ReflectValue.Len() - 1; i >= 0; i-- {
rv := db.Statement.ReflectValue.Index(i)
if reflect.Indirect(rv).Kind() != reflect.Struct {
break
}
_, isZero := db.Statement.Schema.PrioritizedPrimaryField.ValueOf(rv)
if isZero {
db.Statement.Schema.PrioritizedPrimaryField.Set(rv, insertID)
insertID -= db.Statement.Schema.PrioritizedPrimaryField.AutoIncrementIncrement
}
}
} else {
for i := 0; i < db.Statement.ReflectValue.Len(); i++ {
rv := db.Statement.ReflectValue.Index(i)
if reflect.Indirect(rv).Kind() != reflect.Struct {
break
}
if _, isZero := db.Statement.Schema.PrioritizedPrimaryField.ValueOf(rv); isZero {
db.Statement.Schema.PrioritizedPrimaryField.Set(rv, insertID)
insertID += db.Statement.Schema.PrioritizedPrimaryField.AutoIncrementIncrement
}
}
}
} else {
db.AddError(err)
case reflect.Struct:
if _, isZero := db.Statement.Schema.PrioritizedPrimaryField.ValueOf(db.Statement.ReflectValue); isZero {
db.Statement.Schema.PrioritizedPrimaryField.Set(db.Statement.ReflectValue, insertID)
}
}
} else {
db.AddError(err)
}
}
}
}
}