hook.go
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package orm
import (
"context"
"reflect"
)
type hookStubs struct{}
var (
_ AfterScanHook = (*hookStubs)(nil)
_ AfterSelectHook = (*hookStubs)(nil)
_ BeforeInsertHook = (*hookStubs)(nil)
_ AfterInsertHook = (*hookStubs)(nil)
_ BeforeUpdateHook = (*hookStubs)(nil)
_ AfterUpdateHook = (*hookStubs)(nil)
_ BeforeDeleteHook = (*hookStubs)(nil)
_ AfterDeleteHook = (*hookStubs)(nil)
)
func (hookStubs) AfterScan(ctx context.Context) error {
return nil
}
func (hookStubs) AfterSelect(ctx context.Context) error {
return nil
}
func (hookStubs) BeforeInsert(ctx context.Context) (context.Context, error) {
return ctx, nil
}
func (hookStubs) AfterInsert(ctx context.Context) error {
return nil
}
func (hookStubs) BeforeUpdate(ctx context.Context) (context.Context, error) {
return ctx, nil
}
func (hookStubs) AfterUpdate(ctx context.Context) error {
return nil
}
func (hookStubs) BeforeDelete(ctx context.Context) (context.Context, error) {
return ctx, nil
}
func (hookStubs) AfterDelete(ctx context.Context) error {
return nil
}
func callHookSlice(
ctx context.Context,
slice reflect.Value,
ptr bool,
hook func(context.Context, reflect.Value) (context.Context, error),
) (context.Context, error) {
var firstErr error
sliceLen := slice.Len()
for i := 0; i < sliceLen; i++ {
v := slice.Index(i)
if !ptr {
v = v.Addr()
}
var err error
ctx, err = hook(ctx, v)
if err != nil && firstErr == nil {
firstErr = err
}
}
return ctx, firstErr
}
func callHookSlice2(
ctx context.Context,
slice reflect.Value,
ptr bool,
hook func(context.Context, reflect.Value) error,
) error {
var firstErr error
if slice.IsValid() {
sliceLen := slice.Len()
for i := 0; i < sliceLen; i++ {
v := slice.Index(i)
if !ptr {
v = v.Addr()
}
err := hook(ctx, v)
if err != nil && firstErr == nil {
firstErr = err
}
}
}
return firstErr
}
//------------------------------------------------------------------------------
type BeforeScanHook interface {
BeforeScan(context.Context) error
}
var beforeScanHookType = reflect.TypeOf((*BeforeScanHook)(nil)).Elem()
func callBeforeScanHook(ctx context.Context, v reflect.Value) error {
return v.Interface().(BeforeScanHook).BeforeScan(ctx)
}
//------------------------------------------------------------------------------
type AfterScanHook interface {
AfterScan(context.Context) error
}
var afterScanHookType = reflect.TypeOf((*AfterScanHook)(nil)).Elem()
func callAfterScanHook(ctx context.Context, v reflect.Value) error {
return v.Interface().(AfterScanHook).AfterScan(ctx)
}
//------------------------------------------------------------------------------
type AfterSelectHook interface {
AfterSelect(context.Context) error
}
var afterSelectHookType = reflect.TypeOf((*AfterSelectHook)(nil)).Elem()
func callAfterSelectHook(ctx context.Context, v reflect.Value) error {
return v.Interface().(AfterSelectHook).AfterSelect(ctx)
}
func callAfterSelectHookSlice(
ctx context.Context, slice reflect.Value, ptr bool,
) error {
return callHookSlice2(ctx, slice, ptr, callAfterSelectHook)
}
//------------------------------------------------------------------------------
type BeforeInsertHook interface {
BeforeInsert(context.Context) (context.Context, error)
}
var beforeInsertHookType = reflect.TypeOf((*BeforeInsertHook)(nil)).Elem()
func callBeforeInsertHook(ctx context.Context, v reflect.Value) (context.Context, error) {
return v.Interface().(BeforeInsertHook).BeforeInsert(ctx)
}
func callBeforeInsertHookSlice(
ctx context.Context, slice reflect.Value, ptr bool,
) (context.Context, error) {
return callHookSlice(ctx, slice, ptr, callBeforeInsertHook)
}
//------------------------------------------------------------------------------
type AfterInsertHook interface {
AfterInsert(context.Context) error
}
var afterInsertHookType = reflect.TypeOf((*AfterInsertHook)(nil)).Elem()
func callAfterInsertHook(ctx context.Context, v reflect.Value) error {
return v.Interface().(AfterInsertHook).AfterInsert(ctx)
}
func callAfterInsertHookSlice(
ctx context.Context, slice reflect.Value, ptr bool,
) error {
return callHookSlice2(ctx, slice, ptr, callAfterInsertHook)
}
//------------------------------------------------------------------------------
type BeforeUpdateHook interface {
BeforeUpdate(context.Context) (context.Context, error)
}
var beforeUpdateHookType = reflect.TypeOf((*BeforeUpdateHook)(nil)).Elem()
func callBeforeUpdateHook(ctx context.Context, v reflect.Value) (context.Context, error) {
return v.Interface().(BeforeUpdateHook).BeforeUpdate(ctx)
}
func callBeforeUpdateHookSlice(
ctx context.Context, slice reflect.Value, ptr bool,
) (context.Context, error) {
return callHookSlice(ctx, slice, ptr, callBeforeUpdateHook)
}
//------------------------------------------------------------------------------
type AfterUpdateHook interface {
AfterUpdate(context.Context) error
}
var afterUpdateHookType = reflect.TypeOf((*AfterUpdateHook)(nil)).Elem()
func callAfterUpdateHook(ctx context.Context, v reflect.Value) error {
return v.Interface().(AfterUpdateHook).AfterUpdate(ctx)
}
func callAfterUpdateHookSlice(
ctx context.Context, slice reflect.Value, ptr bool,
) error {
return callHookSlice2(ctx, slice, ptr, callAfterUpdateHook)
}
//------------------------------------------------------------------------------
type BeforeDeleteHook interface {
BeforeDelete(context.Context) (context.Context, error)
}
var beforeDeleteHookType = reflect.TypeOf((*BeforeDeleteHook)(nil)).Elem()
func callBeforeDeleteHook(ctx context.Context, v reflect.Value) (context.Context, error) {
return v.Interface().(BeforeDeleteHook).BeforeDelete(ctx)
}
func callBeforeDeleteHookSlice(
ctx context.Context, slice reflect.Value, ptr bool,
) (context.Context, error) {
return callHookSlice(ctx, slice, ptr, callBeforeDeleteHook)
}
//------------------------------------------------------------------------------
type AfterDeleteHook interface {
AfterDelete(context.Context) error
}
var afterDeleteHookType = reflect.TypeOf((*AfterDeleteHook)(nil)).Elem()
func callAfterDeleteHook(ctx context.Context, v reflect.Value) error {
return v.Interface().(AfterDeleteHook).AfterDelete(ctx)
}
func callAfterDeleteHookSlice(
ctx context.Context, slice reflect.Value, ptr bool,
) error {
return callHookSlice2(ctx, slice, ptr, callAfterDeleteHook)
}