[TYPO3-mvc] Calling persistAll() inside a loop

[Franz Koch]

On 29.12.2010 18:49, Kevin Ulrich Moschallski wrote:
> Hi list,
>
> i'm currently trying to import a list of references via soap.
>
> I loop through all results from soap an add the references. Each
> reference object contains a fe_user object, an tt_address object and a
> reference category object.
>
> The categories are created inside the same loop and here comes my
> problem. I check via the reference category respository if a category
> already exist, if not a create a new object and do a repository->add().
>
> I noticed, that i get duplicated categories because when the next run of
> the loop comes to the point where it checks for the category the
> category isn't persisted yet. Sure this is because the controller calls
> persistAll() only at the end of each call.
...
> My question now is, is there a other approach to persist inside a loop?
> Could i add a new category controller and call this to add a new
> category? Maybe with DI?

how about simply implementing a category cache in your import method?

/**
  * Your category cache
  * @var array
  */
protected $categoryCache = array();


/**
  * is resolving a category object by it's name.
  * @var string $name The name of the category
  * @return Tx_YourExt_Domain_Model_Category
  */
protected function getCategoryByName($name) {
	if (!isset($this->categoryCache[$name])) {
		$category = $this->categoryRepository->findOneByName($name);
		if (!empty($category)) {
			$this->categoryCache[$name] = $category;
		} else {
			$newCategory = 
$this->createCategoryObject($referenceArray['categories']);
			$this->categoryRepository->add($newCategory);
			$this->categoryCache[$name] = $newCategory;
		}
	}
	return $this->categoryCache[$name];
}


public function import() {
	//your loop
	if ($referenceArray['categories']) {
		$userObject->setCategory( 
$this->getCategoryByName($referenceArray['categories']));
	}
}


The persistence in then only done once at the end of the import.
-- 
kind regards,
Franz Koch