Cannot fetch parse.com relation from object php

Question

I'm using the PHP parse.com SDK to get some data from the server, but whenever I try to do the $query->find() nothing happens.

    $historyDB = new ParseObject('History', $historyId);
    $relation = $historyDB->getRelation("exams");
    $query = $relation->getQuery();
    $findQuery = $query->find();

My $findQuery variable whenever I try to print_r() it shows this error:

    exception 'Parse\ParseException' with message 'missing class name' in 
    C:\wamp\www\parse\php-sdk\src\Parse\ParseClient.php:297 Stack trace: #0 
    C:\wamp\www\parse\php-sdk\src\Parse\ParseQuery.php(346):
    Parse\ParseClient::_request('GET', '/1/classes/?whe...', NULL, NULL, false) #1
    C:\wamp\www\report.php(110): Parse\ParseQuery->find() #2 {main}

I have no idea why, Thanks in advance.

IMHO it makes no sense to use such a service. You see, it isn't simpler, it is more complicated that way. Also a developer should take himself on the most important part: The data. — hek2mgl
– hek2mgl, Commented Oct 12, 2015 at 20:59
But what you are going to get?The ParseRelation object just need a $targetClassName to get the result by making a Parse API Call request.So just read the official document. — jayxhj
– jayxhj, Commented Oct 16, 2015 at 7:04
I have actually read the official documente but I have not found anything about setting the $tagetClassName. I have read it from here. Imma definitely write this down now. — ocespedes
– ocespedes, Commented Oct 16, 2015 at 16:08

jayxhj · Accepted Answer · 2015-10-16 03:12:44Z

2

+50

You should set the targetClassName property of the ParseRelation object before you call getQuery(),try to set it by calling setTargetClass().

$historyDB = new ParseObject('History', $historyId);
$relation  = $historyDB->getRelation("exams");
$relation->setTargetClass('targetClassName');
$query     = $relation->getQuery();
$findQuery = $query->find();

answered Oct 16, 2015 at 3:12

jayxhj

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1 Comment

ocespedes Over a year ago

Thank you, it worked. Parse really need to update its documentation.

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