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
}
// 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)
}
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
}
func FindAll(DB db.IDb, table *db.Table, instance interface{}) (coll.Collection, error) {
logger.CallerAt(1).Debugf("DAOUtils.FetchAll")
deletion := table.GetDeletionColumn()
q := DB.Query(table).All()
if deletion != nil {
q.Where(deletion.Matches(NOT_DELETED))
}
return q.ListOf(instance)
}
func Save(DB db.IDb, table *db.Table, entity IEntity) error {
logger.CallerAt(1).Debugf("DAOUtils.Save: %s", entity)
if entity.GetVersion() == nil {
entity.SetVersion(Int64(1))
//entity.SetCreation(NOW()) -> PreInsert
id, err := DB.Insert(table).Submit(entity)
if err != nil {
return err
}
entity.SetId(&id)
} else {
// TODO should check the deletion column in the where clause
//entity.SetModification(NOW()) -> PreUpdate
_, err := DB.Update(table).Submit(entity)
if err != nil {
return err
}
}
return nil
}
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
}
func FindAllWithDeleted(DB db.IDb, table *db.Table, instance interface{}) (coll.Collection, error) {
logger.CallerAt(1).Debugf("DAOUtils.FindAllWithDeleted")
return DB.Query(table).All().ListOf(instance)
}