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I run the following Filter process in a forEach loop. I want to tell what is the node count before I continue to the end of the loop. for example
$node1->pipe( new Filter( array (
array("teacher_id", "=", $teacher['id']),
"or",
array("teacher_id","findInSet",$teacher['id']),
)))
if ($node1->count()....)
In the report's setup, pipes are only setup but data hasn't passed through them yet. Normally data is processed only when $report->run() is called. In your case you must force data to be sent right at once with method requestDataSending() to count data rows like this:
$node1->pipe(new Filter(...))
->pipe($this->dataStore("myds"))
->requestDataSending();
if ($this->dataStore("myds")->countData() > 0) {...}
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