[TYPO3-mvc] Caching framework inside extbase extension

[Kevin Ulrich Moschallski]

Hi list,

i'm writing an extbase extension which shows references on a map. 
Because i want to display all of them on the focus of germany i have 
>300 results from my repository. The references are sorted by groups, 
this is currently the only filter option.

To speed things up i implemented the caching framework in my extension. 
First i noticed, it seems that i can't store the result of 
$this->referenceRepository->toArray() in the cache. I get an exception 
when passing the cached array to fluid. I guess this is because many 
objects are lazy inside the array.

My next step was to store the result of $this->view->render() instead 
and push it with $this->result->setContent().

This works fine, my only problem is, that the "normal" view output is 
also rendered, which gives me some translated error messages from my 
template that the necessary objects are empty.

For a workaround i pass a "nocache" object to the view to supress the 
output with a if condition in the template.

My question now is, if there is a way to supress the fluid view 
rendering or another way to cache plain html content inside extbase. 
Maybe someone did this before and is willing to help me.

Thanks for help in advance.

Here is the code:

$this->view->assign('demand', $demand);
		if 
($this->cacheInstance->has(hash('md5','category'.$demand->getCategory()))) 
{
			$content = $this->cacheInstance->get(hash('md5', 
'category'.$demand->getCategory()));
			$this->response->setContent($content);
		}
		else {
			$references = $this->referenceRepository->findDemanded($demand)->toArray();
			$this->view->assign('nocache', 1);
			$this->view->assign('categories', $this->categoryRepository->findAll());
			$this->view->assign('references', $references);
			$this->cacheInstance->set(hash('md5', 
'category'.$demand->getCategory()), $this->view->render(), array('type' 
=> 'references'));
		}

Regards,
Kevin