本文整理匯總了Golang中github.com/quintans/goSQL/db.Table.GetKeyColumns方法的典型用法代碼示例。如果您正苦於以下問題：Golang Table.GetKeyColumns方法的具體用法？Golang Table.GetKeyColumns怎麽用？Golang Table.GetKeyColumns使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類github.com/quintans/goSQL/db.Table的用法示例。
在下文中一共展示了Table.GetKeyColumns方法的4個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Golang代碼示例。
示例1: SoftDeleteByIdAndVersion
func SoftDeleteByIdAndVersion(DB db.IDb, table *db.Table, id int64, version int64) error {
deletion := table.GetDeletionColumn()
if deletion == nil {
return dbx.NewPersistenceFail("DAOUtils.SoftDeleteByIdAndVersion", "Table "+table.GetName()+" does not have a deletion type column to do a soft delete.")
}
keyColumn := table.GetKeyColumns().Enumerator().Next().(*db.Column)
versionColumn := table.GetVersionColumn()
result, err := DB.Update(table).
Set(deletion, tk.Milliseconds()).
Set(versionColumn, version+1).
Where(
keyColumn.Matches(id),
versionColumn.Matches(version),
).
Execute()
if err != nil {
return err
}
if result == 0 {
return dbx.NewOptimisticLockFail("DAOUtils.removeByIdVersion: Unable to soft delete by id and version for the table " + table.GetName())
}
return nil
}示例2: FindById
// the result of the query is put in the passed struct.
// returns true if a result was found, false if no result
func FindById(DB db.IDb, table *db.Table, instance interface{}, id int64) (bool, error) {
logger.CallerAt(1).Debugf("DAOUtils.FindById: %v", id)
keyColumn := table.GetKeyColumns().Enumerator().Next().(*db.Column)
return DB.Query(table).
All().
Where(keyColumn.Matches(id)).
SelectTo(instance)
}示例3: DeleteById
func DeleteById(DB db.IDb, table *db.Table, id int64) (bool, error) {
logger.CallerAt(1).Debugf("DAOUtils.deleteById: %v", id)
keyColumn := table.GetKeyColumns().Enumerator().Next().(*db.Column)
result, err := DB.Delete(table).
Where(keyColumn.Matches(id)).
Execute()
return result != 0, err
}示例4: DeleteByIdAndVersion
func DeleteByIdAndVersion(DB db.IDb, table *db.Table, id int64, version int64) error {
logger.CallerAt(1).Debugf("DAOUtils.removeByIdVersion: id: %v, version: %v", id, version)
keyColumn := table.GetKeyColumns().Enumerator().Next().(*db.Column)
versionColumn := table.GetVersionColumn()
result, err := DB.Delete(table).
Where(
keyColumn.Matches(id),
versionColumn.Matches(version),
).
Execute()
if err != nil {
return err
}
if result == 0 {
return dbx.NewOptimisticLockFail("DAOUtils.removeByIdVersion: Unable to delete by id and version for the table " + table.GetName())
}
return nil
}