diff --git a/callback.go b/callback.go
index 1cdeeffb..11eb0006 100644
--- a/callback.go
+++ b/callback.go
@@ -1,12 +1,14 @@
 package gorm
 
-import "fmt"
+import (
+	"fmt"
+)
 
 type callback struct {
-	creates    []*func()
-	updates    []*func()
-	deletes    []*func()
-	queries    []*func()
+	creates    []*func(scope *Scope)
+	updates    []*func(scope *Scope)
+	deletes    []*func(scope *Scope)
+	queries    []*func(scope *Scope)
 	processors []*callback_processor
 }
 
@@ -17,7 +19,7 @@ type callback_processor struct {
 	replace   bool
 	remove    bool
 	typ       string
-	processor *func()
+	processor *func(scope *Scope)
 	callback  *callback
 }
 
@@ -53,7 +55,7 @@ func (cp *callback_processor) After(name string) *callback_processor {
 	return cp
 }
 
-func (cp *callback_processor) Register(name string, fc func()) {
+func (cp *callback_processor) Register(name string, fc func(scope *Scope)) {
 	cp.name = name
 	cp.processor = &fc
 	cp.callback.sort()
@@ -65,7 +67,7 @@ func (cp *callback_processor) Remove(name string) {
 	cp.callback.sort()
 }
 
-func (cp *callback_processor) Replace(name string, fc func()) {
+func (cp *callback_processor) Replace(name string, fc func(scope *Scope)) {
 	cp.name = name
 	cp.processor = &fc
 	cp.replace = true
@@ -81,7 +83,7 @@ func getRIndex(strs []string, str string) int {
 	return -1
 }
 
-func sortProcessors(cps []*callback_processor) []*func() {
+func sortProcessors(cps []*callback_processor) []*func(scope *Scope) {
 	var sortCallbackProcessor func(c *callback_processor, force bool)
 	var names, sortedNames = []string{}, []string{}
 
@@ -137,8 +139,8 @@ func sortProcessors(cps []*callback_processor) []*func() {
 		sortCallbackProcessor(cp, false)
 	}
 
-	var funcs = []*func(){}
-	var sortedFuncs = []*func(){}
+	var funcs = []*func(scope *Scope){}
+	var sortedFuncs = []*func(scope *Scope){}
 	for _, name := range sortedNames {
 		index := getRIndex(names, name)
 		if !cps[index].remove {
diff --git a/callback_create.go b/callback_create.go
new file mode 100644
index 00000000..10f7537e
--- /dev/null
+++ b/callback_create.go
@@ -0,0 +1,41 @@
+package gorm
+
+func BeforeCreate(scope *Scope) {
+	scope.CallMethod("BeforeSave")
+	scope.CallMethod("BeforeCreate")
+}
+
+func SaveBeforeAssociations(scope *Scope) {
+}
+
+func Create(scope *Scope) {
+	if !scope.HasError() {
+		var id interface{}
+		if scope.Dialect().SupportLastInsertId() {
+			if sql_result, err := scope.DB().Exec(scope.Sql, scope.SqlVars...); scope.Err(err) == nil {
+				id, err = sql_result.LastInsertId()
+				scope.Err(err)
+			}
+		} else {
+			scope.Err(scope.DB().QueryRow(scope.Sql, scope.SqlVars...).Scan(&id))
+		}
+
+		scope.SetColumn(scope.PrimaryKey(), id)
+	}
+}
+
+func AfterCreate(scope *Scope) {
+	scope.CallMethod("AfterCreate")
+	scope.CallMethod("AfterSave")
+}
+
+func SaveAfterAssociations(scope *Scope) {
+}
+
+func init() {
+	DefaultCallback.Create().Register("before_create", BeforeCreate)
+	DefaultCallback.Create().Register("save_before_associations", SaveBeforeAssociations)
+	DefaultCallback.Create().Register("create", Create)
+	DefaultCallback.Create().Register("save_after_associations", SaveAfterAssociations)
+	DefaultCallback.Create().Register("after_create", AfterCreate)
+}
diff --git a/callback_delete.go b/callback_delete.go
new file mode 100644
index 00000000..aa13af4a
--- /dev/null
+++ b/callback_delete.go
@@ -0,0 +1,33 @@
+package gorm
+
+import (
+	"fmt"
+	"time"
+)
+
+func BeforeDelete(scope *Scope) {
+	scope.CallMethod("BeforeDelete")
+}
+
+func Delete(scope *Scope) {
+	if scope.HasError() {
+		return
+	}
+
+	if !scope.Search.unscope && scope.HasColumn("DeletedAt") {
+		scope.Raw(fmt.Sprintf("UPDATE %v SET deleted_at=%v %v", scope.TableName(), scope.AddToVars(time.Now()), scope.CombinedConditionSql()))
+	} else {
+		scope.Raw(fmt.Sprintf("DELETE FROM %v %v", scope.TableName(), scope.CombinedConditionSql()))
+	}
+	scope.Exec()
+}
+
+func AfterDelete(scope *Scope) {
+	scope.CallMethod("AfterDelete")
+}
+
+func init() {
+	DefaultCallback.Delete().Register("before_delete", BeforeDelete)
+	DefaultCallback.Delete().Register("delete", Delete)
+	DefaultCallback.Delete().Register("after_delete", AfterDelete)
+}
diff --git a/callback_test.go b/callback_test.go
index 2f4156d7..6fa05f49 100644
--- a/callback_test.go
+++ b/callback_test.go
@@ -7,7 +7,7 @@ import (
 	"testing"
 )
 
-func equalFuncs(funcs []*func(), fnames []string) bool {
+func equalFuncs(funcs []*func(s *Scope), fnames []string) bool {
 	var names []string
 	for _, f := range funcs {
 		fnames := strings.Split(runtime.FuncForPC(reflect.ValueOf(*f).Pointer()).Name(), ".")
@@ -16,11 +16,11 @@ func equalFuncs(funcs []*func(), fnames []string) bool {
 	return reflect.DeepEqual(names, fnames)
 }
 
-func create()         {}
-func before_create1() {}
-func before_create2() {}
-func after_create1()  {}
-func after_create2()  {}
+func create(s *Scope)         {}
+func before_create1(s *Scope) {}
+func before_create2(s *Scope) {}
+func after_create1(s *Scope)  {}
+func after_create2(s *Scope)  {}
 
 func TestRegisterCallback(t *testing.T) {
 	var callback = &callback{processors: []*callback_processor{}}
@@ -76,7 +76,7 @@ func TestRegisterCallbackWithComplexOrder2(t *testing.T) {
 	}
 }
 
-func replace_create() {}
+func replace_create(s *Scope) {}
 
 func TestReplaceCallback(t *testing.T) {
 	var callback = &callback{processors: []*callback_processor{}}
diff --git a/callbacks/create.go b/callbacks/create.go
index 8b2f4f1d..390a1ad0 100644
--- a/callbacks/create.go
+++ b/callbacks/create.go
@@ -1,12 +1,6 @@
-package callback
+package callbacks
 
-import (
-	"fmt"
-
-	"github.com/jinzhu/gorm"
-
-	"time"
-)
+import "github.com/jinzhu/gorm"
 
 func Create(scope *gorm.Scope) {
 }
@@ -15,32 +9,6 @@ func init() {
 	gorm.DefaultCallback.Create().Before().Register(Create)
 }
 
-func query(db *DB) {
-}
-
-func save(db *DB) {
-}
-
-func create(db *DB) {
-}
-
-func update(db *DB) {
-}
-
-func Delete(scope *Scope) {
-	scope.CallMethod("BeforeDelete")
-
-	if !scope.HasError() {
-		if !scope.Search.unscope && scope.HasColumn("DeletedAt") {
-			scope.Raw(fmt.Sprintf("UPDATE %v SET deleted_at=%v %v", scope.Table(), scope.AddToVars(time.Now()), scope.CombinedSql()))
-		} else {
-			scope.Raw(fmt.Sprintf("DELETE FROM %v %v", scope.Table(), scope.CombinedSql()))
-		}
-		scope.Exec()
-		scope.CallMethod("AfterDelete")
-	}
-}
-
 func init() {
 	DefaultCallback.Create().Before("Delete").After("Lalala").Register("delete", Delete)
 	DefaultCallback.Update().Before("Delete").After("Lalala").Remove("replace", Delete)
diff --git a/main.go b/main.go
index 214a9c31..87a0d7e5 100644
--- a/main.go
+++ b/main.go
@@ -8,7 +8,7 @@ import (
 
 type DB struct {
 	Value         interface{}
-	Callbacks     *callback
+	callback      *callback
 	Error         error
 	db            sqlCommon
 	parent        *DB
@@ -22,7 +22,7 @@ type DB struct {
 
 func Open(driver, source string) (DB, error) {
 	var err error
-	db := DB{dialect: dialect.New(driver), tagIdentifier: "sql", logger: defaultLogger}
+	db := DB{dialect: dialect.New(driver), tagIdentifier: "sql", logger: defaultLogger, callback: DefaultCallback}
 	db.db, err = sql.Open(driver, source)
 	db.parent = &db
 	return db, err
diff --git a/private.go b/private.go
index 7b72b5fd..1a7bcb2c 100644
--- a/private.go
+++ b/private.go
@@ -1,11 +1,7 @@
 package gorm
 
 import (
-	"fmt"
-	"os"
 	"regexp"
-	"runtime"
-	"strings"
 	"time"
 )
 
@@ -55,16 +51,6 @@ func (s *DB) hasError() bool {
 	return s.Error != nil
 }
 
-func fileWithLineNum() string {
-	for i := 1; i < 15; i++ {
-		_, file, line, ok := runtime.Caller(i)
-		if ok && (!regexp.MustCompile(`jinzhu/gorm/.*.go`).MatchString(file) || regexp.MustCompile(`jinzhu/gorm/.*test.go`).MatchString(file)) {
-			return fmt.Sprintf("%v:%v", strings.TrimPrefix(file, os.Getenv("GOPATH")+"src/"), line)
-		}
-	}
-	return ""
-}
-
 func (s *DB) print(v ...interface{}) {
 	s.parent.logger.(logger).Print(v...)
 }
diff --git a/scope.go b/scope.go
new file mode 100644
index 00000000..f094d770
--- /dev/null
+++ b/scope.go
@@ -0,0 +1,61 @@
+package gorm
+
+import "github.com/jinzhu/gorm/dialect"
+
+type Scope struct {
+	Search  *search
+	Sql     string
+	SqlVars []interface{}
+	db      *DB
+}
+
+func (scope *Scope) DB() sqlCommon {
+	return scope.db.db
+}
+
+func (scope *Scope) Dialect() dialect.Dialect {
+	return scope.db.parent.dialect
+}
+
+func (scope *Scope) Err(err error) error {
+	if err != nil {
+		scope.db.err(err)
+	}
+	return err
+}
+
+func (scope *Scope) HasError() bool {
+	return true
+}
+
+func (scope *Scope) PrimaryKey() string {
+	return ""
+}
+
+func (scope *Scope) HasColumn(name string) bool {
+	return false
+}
+
+func (scope *Scope) SetColumn(column string, value interface{}) {
+}
+
+func (scope *Scope) CallMethod(name string) {
+}
+
+func (scope *Scope) CombinedConditionSql() string {
+	return ""
+}
+
+func (scope *Scope) AddToVars(value interface{}) string {
+	return ""
+}
+
+func (scope *Scope) TableName() string {
+	return ""
+}
+
+func (scope *Scope) Raw(sql string, values ...interface{}) {
+}
+
+func (scope *Scope) Exec() {
+}
diff --git a/utils.go b/utils.go
index 947cccad..6df5a86a 100644
--- a/utils.go
+++ b/utils.go
@@ -3,7 +3,11 @@ package gorm
 import (
 	"bytes"
 	"database/sql"
+	"fmt"
+	"os"
 	"reflect"
+	"regexp"
+	"runtime"
 	"strconv"
 	"strings"
 	"sync"
@@ -86,6 +90,16 @@ func toSearchableMap(attrs ...interface{}) (result interface{}) {
 	return
 }
 
+func fileWithLineNum() string {
+	for i := 1; i < 15; i++ {
+		_, file, line, ok := runtime.Caller(i)
+		if ok && (!regexp.MustCompile(`jinzhu/gorm/.*.go`).MatchString(file) || regexp.MustCompile(`jinzhu/gorm/.*test.go`).MatchString(file)) {
+			return fmt.Sprintf("%v:%v", strings.TrimPrefix(file, os.Getenv("GOPATH")+"src/"), line)
+		}
+	}
+	return ""
+}
+
 func setFieldValue(field reflect.Value, value interface{}) bool {
 	if field.IsValid() && field.CanAddr() {
 		switch field.Kind() {