Laravel access model's property in relation method

Question

I have a relation method for a model which has a condition based on a property of the model itself.

// ProductController.php

    public function show($id, Request $request) {
      $product = Product::find($id);

      if ($request->exists('optionValues') {
         $product->load('optionValues');
      }
    }




// Product.php

    public function optionValues()
    {

/// here $this->stock_status_id is null. actually all attributes array is empty.

        if ($this->stock_status_id == Stock::CUSTOM_ORDER) {
            return $this->hasMany(ProductOptionValue::class, 'product_id', 'product_id')
                ->where('status', 1);
        }

        return $this->hasMany(ProductOptionValue::class, 'product_id', 'product_id')
            ->where('price', '>', 0)
            ->where('quantity', '>', '0')
            ->where('status', 1);

    }

but it seems when Laravel is loading a relation all properties are null. and $this->stock_status_id for current model is null, and I can't check for the condition.

Is there any workaround this problem?

How do you get your model, you call option values on? Laravel does not set values to null when loading relationships. — mrhn
– mrhn, Commented Apr 29, 2020 at 11:47
@mrhn in controller after getting the product via $product = Product::find($request->id), I call $product->load('optionValues') — Hadi Sharghi
– Hadi Sharghi, Commented Apr 29, 2020 at 12:20
Have you checked purpose of scopes in documentation? There you would find how to pass arbitrary (in this case request('optionValues')) parameter. — Tpojka
– Tpojka, Commented Apr 29, 2020 at 12:51

Hadi Sharghi · Accepted Answer · 2020-04-29 14:50:25Z

3

After 2 hours of debugging I discovered that Laravel has different way of loading relations when using $model->load('relationName') method than calling it via $model->relationName

When using ->load('relationName') method the instance of model has no attributes yet even when all attributes have been loaded properly before calling $model->load().

But when using $model->relationName on a model instance, the instance have all the attributes present when trying to load the relation.

So, I changed this line of code

$product->load('optionValues');

to this:

$product->optionValues;

And the condition checking in the optionValues() method, works as expected.

answered Apr 29, 2020 at 14:50

Hadi Sharghi

1,01517 silver badges38 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Laravel access model's property in relation method

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related