Getting multiple fields from database to an array

Question

I wrote an api call in my Symfony project that returns all fields from my entity with the query defined below..

Now, I need to define just three fields like 'id', 'name', 'value' and to pull values from that fields that are currently stored in a database.

public function getChartData() {
    $myResults = $this->getMyRepository()
                       ->createQueryBuilder('s')
                       ->groupBy('s.totalCollected')
                       ->orderBy('s.id', 'ASC')
                       ->getQuery()
                       ->getArrayResult();

    $result = array("data" => array());

    foreach ($myResults as $myResult => $label) {
            $result['data'][$schoolResult] =  $label["id"];
            $result['data'][$schoolResult] =  $label["name"];
            $result['data'][$schoolResult] =  $label["totalCollected"];
    }
}

The problem is it return just totalCollected field.

One of errors are Call to a member function getId() on array and so on, and I can't figure out a way to pull data from db...

You are returning an array of data from the DB. So in order to access it you will need to use some loop for foreach or while or use 0 as an access to a first item in that array. If you are using 0 than something like this might help $myResults[0]->getId(), — Igor Ilic
– Igor Ilic, Commented Dec 25, 2018 at 14:54
so, you cannot use array as an object, I assume you get an array back with single/multiple rows, I think you should iterate it and then, get your fields from each row and a single row should match your entity — rs007
– rs007, Commented Dec 25, 2018 at 15:00
Can you share the content of $myResults and $schoolResults? — dWinder
– dWinder, Commented Dec 25, 2018 at 16:26
I edited the post it actually the same. I get response just for last array of values. Just totalCollected is returned, not Id and Name.. @DavidWinder — John
– John, Commented Dec 26, 2018 at 8:29

dWinder · Accepted Answer · 2018-12-26 08:45:05Z

I cannot see in your code where $schoolResult come from but lets guess it string key of some sort.

Notice you trying to set 3 value on the same key so only the last one remains.

Look at:

$a = array();
$a["key"] = 4;
$a["key"] = 6;

It is simple to see that $a["key"] will contains 6 and not 4 or both.

When you do:

foreach ($myResults as $myResult => $label) {
    $result['data'][$schoolResult] =  $label["id"];
    $result['data'][$schoolResult] =  $label["name"];
    $result['data'][$schoolResult] =  $label["totalCollected"];
}

You override the data in $result['data'][$schoolResult] therefor only try totalCollected is there as the last one to set.

In order to fix that you can use:

foreach ($myResults as $myResult => $label) {
    $result['data'][$schoolResult]["id] =  $label["id"];
    $result['data'][$schoolResult]["name"] =  $label["name"];
    $result['data'][$schoolResult]["totalCollected"] =  $label["totalCollected"];
}

Hope that helps!

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