Looping through array

Question

I have an array just like this:

The question I have is how can I foreach through the objects. I want to associate each of those to a container.

So I tried this:

foreach ($data['plates'] as $index => $element) {
    //Don't worry about the container_id. 
    $plates = Plate::find($element['plate_id'])->plateContainer()->associate($data['container_id'])->save();
}

But can't seem to get this working. Any ideas what I am doing wrong or missing?

FYI—The relations between the models

Plate Model

public function plateContainer()
{
    return $this->belongsTo('App\Models\PlateContainer');
}

PlateContainer Model

public function plates()
{
    return $this->hasMany('App\Models\Plate');
}

Update #1: The array is coming from AngularJS after submitting a simple form. Sorry forgot to mention this.

Update #2: Ok. I gave the following a try.

foreach ($data['plates'] as $element)
{
    foreach ($element as $value)
    {
        $plates = Plate::find($value)->plateContainer()->associate($data['container_id'])->save();
    }
}

…but still not getting it to work. Checking the DB, it only shows the first plate was updated with the given container.

I tried dd($value); It only shows 1

@callback I am sorry. I forgot to mention. The array coming from AngularJS . I will update the post — user3641381
– user3641381, Commented Sep 29, 2016 at 14:45
@Pete Sorry! Just updated the post. No it's not a php array. Coming from AngularJS — user3641381
– user3641381, Commented Sep 29, 2016 at 14:47

Rax Weber · Accepted Answer · 2016-09-29 15:06:22Z

1

Your $data['plates'] contains 2 associative arrays: [0] => {etc...} and [1] => {etc...}. So you need a nested loop for that.

for ($i=0; $i<count($data['plates']); $i++) {
    foreach ($data['plates'][$i] as $index => $element) {
    //Don't worry about the container_id. 
    $plates = Plate::find($element['plate_id'])->plateContainer()->associate($data['container_id'])->save();
    }
}

edited Sep 29, 2016 at 15:06

answered Sep 29, 2016 at 14:45

Rax Weber

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4 Comments

user3641381 Over a year ago

Thanks, but what if I had more than 2 elements?

Rax Weber Over a year ago

Updated my answer. Instead of hard coding the loop limit, use count() function instead to count the number of elements of the array.

user3641381 Over a year ago

I tried this again. It's weird, it only updates a single plate with a given container. I updated my post once again.

Rax Weber Over a year ago

Why find($value)? Why not find($value['plate_id'])?

user3641381 · Accepted Answer · 2016-09-30 10:57:12Z

0

Something was off.

   foreach ($data['plates'] as $index => $element) {


  $plates = Plate::find($element['plate_id'])->plateContainer()->associate($data['container_id'])->save();
}

Did the trick

answered Sep 30, 2016 at 10:57

user3641381

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