Subscribe a callback to when the supplied row will be persisted.
| public SubscribeToPrePersistEvent ( Storm\Core\Relational\ITable $Table, callable $Event ) | ||
| $Table | Storm\Core\Relational\ITable | |
| $Event | callable | |
protected function PersistIdentifyingRelationship(Relational\Transaction $Transaction, Relational\ResultRow $ParentData, array $ChildRows)
{
if ($this->GetForeignKey()->HasReferencedKey($ParentData)) {
foreach ($ChildRows as $ChildRow) {
$this->MapRelationalParentDataToRelatedData($ParentData, $ChildRow);
}
} else {
$Transaction->SubscribeToPrePersistEvent($this->GetTable(), function () use(&$ParentData, &$ChildRows) {
foreach ($ChildRows as $ChildRow) {
$this->MapRelationalParentDataToRelatedData($ParentData, $ChildRow);
}
});
}
}
protected final function PersistIdentifyingRelationship(Relational\Transaction $Transaction, Relational\ResultRow $ParentData, Relational\ResultRow $ChildData)
{
$ForeignKey = $this->GetForeignKey();
/**
* In case the foreign key is part of the primary key and the row has
* not been persisted yet.
*/
$HasForeignKey = $this->IsInversed() ? $ForeignKey->HasReferencedKey($ParentData) : $ForeignKey->HasParentKey($ParentData);
if ($HasForeignKey) {
$this->MapRelationalParentDataToRelatedData($ParentData, $ChildData);
} else {
$Transaction->SubscribeToPrePersistEvent($ChildData, function () use(&$ParentData, &$ChildData) {
$this->MapRelationalParentDataToRelatedData($ParentRow, $ChildRow);
});
}
}
public function Persist(Relational\Transaction $Transaction, Relational\ResultRow $ParentData, array $RelationshipChanges)
{
/* @var $RelationshipChanges Relational\RelationshipChange[] */
$JoinRowsWithoutPrimaryKeys = [];
foreach ($RelationshipChanges as $RelationshipChange) {
if ($RelationshipChange->HasPersistedRelationship()) {
$JoinRow = $this->MapPersistedRelationshipToJoinRow($RelationshipChange->GetPersistedRelationship());
$Transaction->Persist($JoinRow);
if (!$JoinRow->HasPrimaryKey()) {
$JoinRowsWithoutPrimaryKeys[] = $JoinRow;
}
}
if ($RelationshipChange->HasDiscardedRelationship()) {
$JoinRow = $this->MapDiscardedRelationshipToJoinRow($RelationshipChange->GetDiscardedRelationship());
$Transaction->Discard($JoinRow->GetPrimaryKey());
}
}
if (count($JoinRowsWithoutPrimaryKeys) > 0) {
$ParentRow = $ParentData->GetRow($this->ParentForeignKey->GetReferencedTable());
$Transaction->SubscribeToPrePersistEvent($this->JoinTable, function () use(&$ParentRow, &$JoinRowsWithoutPrimaryKeys) {
foreach ($JoinRowsWithoutPrimaryKeys as $JoinRowWithoutPrimaryKey) {
$this->ParentForeignKey->MapReferencedToParentKey($ParentRow, $JoinRowWithoutPrimaryKey);
}
});
}
}
