Laravel relation error - Trying to get property of non-object

Question

I am trying to get the id of the relations I have setup.

Plate model

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

PlateContainer Model

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

public function equipmentStatusCode()
{
    return $this->hasOne('App\Models\EquipmentStatusCode');
}

EquipmentStatusCode Model

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

When I try.

    $p  = Plate::findOrFail(4);
    $p->plateContainer->equipmentStatusCode;

  return $p;

I get Trying to get property of non-object. What I am doing wrong?

plateContainer isn't a property of $p but a method. That's why you get the error. — Daan
– Daan, Commented Nov 2, 2015 at 8:27
specify the table structure for tables plates and equipment_status_codes — Almazik G
– Almazik G, Commented Nov 2, 2015 at 9:24

ArtisanBay · Accepted Answer · 2015-11-02 10:14:00Z

2

Try this:

I just tried to create a similar situation. I modified the code likewise:

$p  = Plate::findOrFail(4);

$p->equipmentStatusCode->plateContainer;
return $p;

I was able to fetch the result array.

answered Nov 2, 2015 at 10:14

ArtisanBay

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2 Comments

user3641381 Over a year ago

It is my fault. This one worked getting the very first error was because I had nothing in my DB ( I know it's stupid). Thanks everyone for the effort!

ArtisanBay Over a year ago

Happy that you found the solution. Thanks :)

Peter Kota · Accepted Answer · 2015-11-02 10:15:24Z

2

plateContainer and equipmentStatusCode are a functions. Use rounded brackets.

Add the following relation to the Plate model:

public function equipmentStatusCode()
{
    return $this->hasManyThrough('App\Models\EquipmentStatusCode', 'App\Models\PlateContainer');
}

And try:

$p  = Plate::findOrFail(4);
$p->equipmentStatusCode();

return $p;

edited Nov 2, 2015 at 10:15

answered Nov 2, 2015 at 9:19

Peter Kota

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4 Comments

user3641381 Over a year ago

I have tried this already. I am getting Undefined property: Illuminate\Database\Eloquent\Relations\BelongsTo::$equipmentStatusCode

Peter Kota Over a year ago

You have to add rounded brackets after equipmentStatusCode. I edited my asnwer.

user3641381 Over a year ago

I gave your updated code a try, Now I get Call to undefined method Illuminate\Database\Query\Builder::equipmentStatusCode()

Peter Kota Over a year ago

Oh yes, you have to use hasManyThrough relation. Please try it!

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