richtone123

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Level 1
60 XP
Apr
17
3 weeks ago
Activity icon

Replied to Accessing Table Of Third Foreign Key In Pivot Table

Thank you for idea, but this not seem to be the problem. I edited the column to not be nullable. Also, I am able to access $car->pivot->currency_id, but not able to access $car->pivot->currency->sign.

Apr
14
4 weeks ago
Activity icon

Started a new Conversation Accessing Table Of Third Foreign Key In Pivot Table

Hi everyone! I have a pivot table between Cars and Offers models / tables. I also have included 'price_from' and 'currency_id' columns in the pivot table as it makes sense to save those information there.

Migrations

Cars

public function up()
    {
        Schema::create('cars', function (Blueprint $table) {
            $table->id();
            $table->timestamps();
        });
    }

CarOffer (pivot table)

 public function up()
    {
        Schema::create('car_offer', function (Blueprint $table) {
            $table->id();
            $table->unsignedBigInteger('car_id');
            $table->unsignedBigInteger('offer_id');
            $table->unsignedMediumInteger('price_from')->nullable();
            $table->foreignId('currency_id')->nullable()->constrained();
            $table->timestamps();
            
            $table->foreign('car_id')->references('id')->on('cars');
            $table->foreign('offer_id')->references('id')->on('offers');
        });
    }

Currencies


    public function up()
    {
        Schema::create('currencies', function (Blueprint $table) {
            $table->id();
            $table->string('currency_code')->unique();
            $table->string('sign');
            $table->timestamps();
        });
    }

Models

Car

class Car extends Model
{
    use HasFactory;

    protected $guarded = [];
    
    public function offers() {
        return $this->belongsToMany(Offer::class)->withPivot('id','price_from', 'price_to', 'currency_id');
    }
    
}

CarOffer (pivot table)

class CarOffer extends Model
{
    use HasFactory;

    public function currency() {
        return $this->belongsTo(Currency::class);
    }
}

Currency


class Currency extends Model
{
    use HasFactory;

    public function carOffers() {
        return $this->hasMany(CarOffer::class);
    }

    public function area() {
        return $this->hasMany(Area::class);
    }
}

Problem

I am trying to access $car->pivot->currency->sign in my view, it fails, because apparently "currency" is null:

@foreach($offer->cars as $car)
	{{ $car->pivot->currency->sign}}
@endforeach