How can I filter an FlowQuery

Using Neos & Flow Flow App Development
1

Hey guys,

I have build a search plugin, but now I can’t filter all nodes with property “hidesearch”: true.
I have tried this with the outcommented line.

$flowQuery = new FlowQuery(array($node));
                //$flowQuery = (new FlowQuery(array($node)))->filter('[hidesearch = true]')->sort('_index', 'DESC');
                $documentNode = $flowQuery->closest('[instanceof Neos.Neos:Document]')->get(0);
                if (isset($searchNode)) {
                    $results[] = array('searchNode' => $searchNode, 'documentNode' => $documentNode);
                }

Thank you for your answer!

2

The commented line tries to filter a collection of a single node. That does not make much sense. In general filter works like this but you have to pass a list of nodes that shall be filtered.

Regards, Martin

3

Thank you. How could I do this?

4

We’d need a little additional context here to answer this. In your search plugin, there must be a place where you receive an array of all nodes that are searched, no? This would be the place where you can do new FlowQuery($yourNodeArray)->…

Having said that, however, I doubt that doing a live filtering of those nodes will yield the search performance you want. Any reason why you’re not relying on an existing search plugin like Flowpack.SimpleSearch?

5

In genreal filter is applied to the flowQueryContext.

if you already have a list of nodes you can do this like this.

$flowQuery = new FlowQuery([$node1, $node2, ...]);
$filteredNodes = $flowQuery->filter('[hidesearch = true]')->get();

If you have a starting point and want to find all documents below that match your criterea you can do

$flowQuery = new FlowQuery([$startingNode]);
$filteredNodes = $flowQuery
   ->find('[instanceof Neos.Neos:Document]')
   ->filter('[hidesearch = true]')
   ->get();

This will first find all Documents below the $startingNode and then apply the filter. The two opertions find() and filter() return a new modified flowQueryContext while get() will return the content of the context for use outside of flowQuery.

As @beheist commented that is probably not the ideal way to search across many nodes. It does not provide a fulltext index and the performance will drop if you query too much nodes. So use such a solution only if you have a good reason to assume that the number of nodes you are filtering will not increase too much over time.

6

Okay thank you. But I have tried this (Commented lines). I get Error 500 :frowning:

$results = array();
        foreach ($nodes as $node) {
            $properties = $node->getProperties();
            foreach ($properties as $propertyName) {
                if (!is_object($propertyName) && is_string($propertyName)) {
                    $searchNode = strip_tags($propertyName);
                }
            }
            if ($node !== NULL && (string) $node->getNodeType() !== 'Neos.Neos:Document') {
                $flowQuery = new FlowQuery(array($node));
                //$flowQuery = (new FlowQuery(array($node)))->filter('[hidesearch = true]')->sort('_index', 'DESC');
                //$filteredNodes = $flowQuery->filter('[hidesearch = false]')->get();
                $documentNode = $flowQuery->closest('[instanceof Neos.Neos:Document]')->get(0);
                if (isset($searchNode)) {
                    $results[] = array('searchNode' => $searchNode, 'documentNode' => $documentNode);
                }
            }
        }
7

You still add only one node to the context. You have to specify the nodes you want to filter first. The code you commented out tries to filter a list that contains a single node.

When working with flowQuery you can start with a single expression and add traversing and filtering step by step.

8

If you want to check a node against conditions take look at the is() operation. This one will return Boolean true if the condition is matched.