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Code Issues Releases Activity

fix #1802

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This commit is contained in:
astaxie 2016-09-12 21:13:21 +08:00
parent dd0f05b1f1
commit 5b21c7cd71
4 changed files with 34 additions and 11 deletions
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32
orm/db.go
View File

@ -634,18 +634,36 @@ func (d *dbBase) Update(q dbQuerier, mi *modelInfo, ind reflect.Value, tz *time.
// execute delete sql dbQuerier with given struct reflect.Value.
// delete index is pk.
func (d *dbBase) Delete(q dbQuerier, mi *modelInfo, ind reflect.Value, tz *time.Location) (int64, error) {
pkName, pkValue, ok := getExistPk(mi, ind)
if ok == false {
return 0, ErrMissPK
func (d *dbBase) Delete(q dbQuerier, mi *modelInfo, ind reflect.Value, tz *time.Location, cols []string) (int64, error) {
var whereCols []string
var args []interface{}
// if specify cols length > 0, then use it for where condition.
if len(cols) > 0 {
var err error
whereCols = make([]string, 0, len(cols))
args, _, err = d.collectValues(mi, ind, cols, false, false, &whereCols, tz)
if err != nil {
return 0, err
}
} else {
// default use pk value as where condtion.
pkColumn, pkValue, ok := getExistPk(mi, ind)
if ok == false {
return 0, ErrMissPK
}
whereCols = []string{pkColumn}
args = append(args, pkValue)
}
Q := d.ins.TableQuote()
query := fmt.Sprintf("DELETE FROM %s%s%s WHERE %s%s%s = ?", Q, mi.table, Q, Q, pkName, Q)
sep := fmt.Sprintf("%s = ? AND %s", Q, Q)
wheres := strings.Join(whereCols, sep)
query := fmt.Sprintf("DELETE FROM %s%s%s WHERE %s%s%s = ?", Q, mi.table, Q, Q, wheres, Q)
d.ins.ReplaceMarks(&query)
res, err := q.Exec(query, pkValue)
res, err := q.Exec(query, args...)
if err == nil {
num, err := res.RowsAffected()
if err != nil {
@ -659,7 +677,7 @@ func (d *dbBase) Delete(q dbQuerier, mi *modelInfo, ind reflect.Value, tz *time.
ind.FieldByIndex(mi.fields.pk.fieldIndex).SetInt(0)
}
}
err := d.deleteRels(q, mi, []interface{}{pkValue}, tz)
err := d.deleteRels(q, mi, args, tz)
if err != nil {
return num, err
}

5
orm/orm.go
View File

@ -234,9 +234,10 @@ func (o *orm) Update(md interface{}, cols ...string) (int64, error) {
}
// delete model in database
func (o *orm) Delete(md interface{}) (int64, error) {
// cols shows the delete conditions values read from. deafult is pk
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)
num, err := o.alias.DbBaser.Delete(o.db, mi, ind, o.alias.TZ,cols)
if err != nil {
return num, err
}

4
orm/orm_test.go
View File

@ -577,6 +577,10 @@ func TestCRUD(t *testing.T) {
err = dORM.Read(&ub)
throwFail(t, err)
throwFail(t, AssertIs(ub.Name, "name"))
num, err = dORM.Delete(&ub, "name")
throwFail(t, err)
throwFail(t, AssertIs(num, 1))
}
func TestInsertTestData(t *testing.T) {

4
orm/types.go
View File

@ -71,7 +71,7 @@ type Ormer interface {
// num, err = Ormer.Update(&user, "Langs", "Extra")
Update(md interface{}, cols ...string) (int64, error)
// delete model in database
Delete(md interface{}) (int64, error)
Delete(md interface{}, cols ...string) (int64, error)
// load related models to md model.
// args are limit, offset int and order string.
//
@ -401,7 +401,7 @@ type dbBaser interface {
InsertValue(dbQuerier, *modelInfo, bool, []string, []interface{}) (int64, error)
InsertStmt(stmtQuerier, *modelInfo, reflect.Value, *time.Location) (int64, error)
Update(dbQuerier, *modelInfo, reflect.Value, *time.Location, []string) (int64, error)
Delete(dbQuerier, *modelInfo, reflect.Value, *time.Location) (int64, error)
Delete(dbQuerier, *modelInfo, reflect.Value, *time.Location, []string) (int64, error)
ReadBatch(dbQuerier, *querySet, *modelInfo, *Condition, interface{}, *time.Location, []string) (int64, error)
SupportUpdateJoin() bool
UpdateBatch(dbQuerier, *querySet, *modelInfo, *Condition, Params, *time.Location) (int64, error)