Change save order of the related objects - php

Question

I have a product table which is linked to a product_image table in a one-to-many relations
. On the same table I also have a i18n behavior. Which means another table, product_i18n with the same type of relation, one-to-many. I'm using PropelORMPlugin (Propel 1.6). By default it generates the folowing doSave method in my BaseProduct.php file.
protected function doSave(PropelPDO $con)
{
$affectedRows = 0; // initialize var to track total num of affected rows
if (!$this->alreadyInSave) {
$this->alreadyInSave = true;
// We call the save method on the following object(s) if they
// were passed to this object by their coresponding set
// method. This object relates to these object(s) by a
// foreign key reference.
if ($this->aCategory !== null) {
if ($this->aCategory->isModified() || $this->aCategory->isNew()) {
$affectedRows += $this->aCategory->save($con);
}
$this->setCategory($this->aCategory);
}
if ($this->isNew() || $this->isModified()) {
// persist changes
if ($this->isNew()) {
$this->doInsert($con);
} else {
$this->doUpdate($con);
}
$affectedRows += 1;
$this->resetModified();
}
if ($this->productImagesScheduledForDeletion !== null) {
if (!$this->productImagesScheduledForDeletion->isEmpty()) {
ProductImageQuery::create()
->filterByPrimaryKeys($this->productImagesScheduledForDeletion->getPrimaryKeys(false))
->delete($con);
$this->productImagesScheduledForDeletion = null;
}
}
if ($this->collProductImages !== null) {
foreach ($this->collProductImages as $referrerFK) {
if (!$referrerFK->isDeleted()) {
$affectedRows += $referrerFK->save($con);
}
}
}
if ($this->productI18nsScheduledForDeletion !== null) {
if (!$this->productI18nsScheduledForDeletion->isEmpty()) {
ProductI18nQuery::create()
->filterByPrimaryKeys($this->productI18nsScheduledForDeletion->getPrimaryKeys(false))
->delete($con);
$this->productI18nsScheduledForDeletion = null;
}
}
if ($this->collProductI18ns !== null) {
foreach ($this->collProductI18ns as $referrerFK) {
if (!$referrerFK->isDeleted()) {
$affectedRows += $referrerFK->save($con);
}
}
}
$this->alreadyInSave = false;
}
return $affectedRows;
}
I need to access a property of the ProductI18n object when saving the in ProductImage objects table (when saving a Product). The problem is that ProductI18n objects are saved after the ProductImage objects. Meaning that the property is empty when the Product is new (because that property is populated when saving a ProductI18n object based on some other properties). Is there any way to change how Propel generates the order of the saving of the related objects? Is there any other way to make this work without rewriting the doSave method?

Answer 1

While there may be a trick to getting this to work by reordering the foreign-key entries in your schema file, this could be fragile (if someone reorders it again, your code breaks). It may be simpler (if not efficient) to use a postInsert hook on the ProductImage class and access it's relevant ProductI18n entry to get the slug (if it doesn't have it already) and then save the ProductImage again.
class ProductImage extends BaseProductImage {
...
public function postInsert(PropelPDO $con = null) {
if (!$this->getSlug()) {
// get the slug from ProductI18n and update $this, then call ->save();
}
}
...
}