Merge pull request #8 from flycash/fix4734-1x

do not reset id to 0

orm/db.go

@@ -702,13 +702,6 @@ func (d *dbBase) Delete(q dbQuerier, mi *modelInfo, ind reflect.Value, tz *time.
 			return 0, err
 		}
 		if num > 0 {
-			if mi.fields.pk.auto {
-				if mi.fields.pk.fieldType&IsPositiveIntegerField > 0 {
-					ind.FieldByIndex(mi.fields.pk.fieldIndex).SetUint(0)
-				} else {
-					ind.FieldByIndex(mi.fields.pk.fieldIndex).SetInt(0)
-				}
-			}
 			err := d.deleteRels(q, mi, args, tz)
 			if err != nil {
 				return num, err

orm/orm.go

@@ -242,14 +242,8 @@ func (o *orm) Update(md interface{}, cols ...string) (int64, error) {
 func (o *orm) Delete(md interface{}, cols ...string) (int64, error) {
 	mi, ind := o.getMiInd(md, true)
 	num, err := o.alias.DbBaser.Delete(o.db, mi, ind, o.alias.TZ, cols)
-	if err != nil {
 	return num, err
 }
-	if num > 0 {
-		o.setPk(mi, ind, 0)
-	}
-	return num, nil
-}
 
 // create a models to models queryer
 func (o *orm) QueryM2M(md interface{}, name string) QueryM2Mer {