1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283848586878889909192939495969798 |
- package gorm
- import (
- "fmt"
- "strings"
- )
- func BeforeCreate(scope *Scope) {
- scope.CallMethod("BeforeSave")
- scope.CallMethod("BeforeCreate")
- }
- func UpdateTimeStampWhenCreate(scope *Scope) {
- if !scope.HasError() {
- now := NowFunc()
- scope.SetColumn("CreatedAt", now)
- scope.SetColumn("UpdatedAt", now)
- }
- }
- func Create(scope *Scope) {
- defer scope.Trace(NowFunc())
- if !scope.HasError() {
- // set create sql
- var sqls, columns []string
- for _, field := range scope.Fields() {
- if field.IsNormal && (!field.IsPrimaryKey || !scope.PrimaryKeyZero()) {
- if field.DefaultValue != nil && field.IsBlank {
- continue
- }
- columns = append(columns, scope.Quote(field.DBName))
- sqls = append(sqls, scope.AddToVars(field.Field.Interface()))
- }
- }
- returningKey := "*"
- if scope.PrimaryKey() != "" {
- returningKey = scope.PrimaryKey()
- }
- if len(columns) == 0 {
- scope.Raw(fmt.Sprintf("INSERT INTO %v DEFAULT VALUES %v",
- scope.QuotedTableName(),
- scope.Dialect().ReturningStr(scope.TableName(), returningKey),
- ))
- } else {
- scope.Raw(fmt.Sprintf(
- "INSERT INTO %v (%v) VALUES (%v) %v",
- scope.QuotedTableName(),
- strings.Join(columns, ","),
- strings.Join(sqls, ","),
- scope.Dialect().ReturningStr(scope.TableName(), returningKey),
- ))
- }
- // execute create sql
- var id interface{}
- if scope.Dialect().SupportLastInsertId() {
- if result, err := scope.DB().Exec(scope.Sql, scope.SqlVars...); scope.Err(err) == nil {
- id, err = result.LastInsertId()
- if scope.Err(err) == nil {
- scope.db.RowsAffected, _ = result.RowsAffected()
- }
- }
- } else {
- if scope.PrimaryKey() == "" {
- if results, err := scope.DB().Exec(scope.Sql, scope.SqlVars...); err != nil {
- scope.db.RowsAffected, _ = results.RowsAffected()
- }
- } else {
- if scope.Err(scope.DB().QueryRow(scope.Sql, scope.SqlVars...).Scan(&id)) == nil {
- scope.db.RowsAffected = 1
- }
- }
- }
- if scope.PrimaryKey() != "" && !scope.HasError() && scope.PrimaryKeyZero() {
- scope.SetColumn(scope.PrimaryKey(), id)
- }
- }
- }
- func AfterCreate(scope *Scope) {
- scope.CallMethod("AfterCreate")
- scope.CallMethod("AfterSave")
- }
- func init() {
- DefaultCallback.Create().Register("gorm:begin_transaction", BeginTransaction)
- DefaultCallback.Create().Register("gorm:before_create", BeforeCreate)
- DefaultCallback.Create().Register("gorm:save_before_associations", SaveBeforeAssociations)
- DefaultCallback.Create().Register("gorm:update_time_stamp_when_create", UpdateTimeStampWhenCreate)
- DefaultCallback.Create().Register("gorm:create", Create)
- DefaultCallback.Create().Register("gorm:save_after_associations", SaveAfterAssociations)
- DefaultCallback.Create().Register("gorm:after_create", AfterCreate)
- DefaultCallback.Create().Register("gorm:commit_or_rollback_transaction", CommitOrRollbackTransaction)
- }
|