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