Laravel hasManyDeep issue

0
votes

I have implemented this relationship where a warehouse belongsToMany products that has Many sales.

My models be like

warehouse.php

public function products () {
    return $this->belongsToMany(Product::class)->withPivot('quantity');
}

product.php

public function sales () {
    return $this->hasMany(Sale::class);
}

I want to access sales directly from my Warehouse model to sum a column in the sales table.

I have used staudenmeir's GitHub package and added a sales method in my Warehouse model.

public function sales () {
    return $this->hasManyDeep(Sale::class, ['product_warehouse', Product::class]);
}

What I want to do is basically to sum total column of sales table so I've added a withSum() method in my WarehouseController like this

return Warehouse::query()
        ->withSum('sales', 'total')
        ->get();

Result

[
   {
      "id": 1,
      "warehouse": "Algeria",
      "sales_sum_total": "1000"
   },
   {
      "id": 2,
      "warehouse": "India",
      "sales_sum_total": "1000"
   }
]

The issue here is when I add a new sale to the India warehouse it returns the same values for all warehouses. I think that I'm not using the hasManyDeep() method the right way or perhaps it doesn't work for my use case. Is there anything I can do to get this to work?

1
laraveleloquentlaravel-8

1 Answers

-1
votes

You could easily use hasManyThrough in warehouse model like:

public function sales(){
    return $this->hasManyThrough(Sale::class, Product::class);
}

And you could call:

return Warehouse::withSum('sales', 'total')->get();