Show compare attributes for every product - php

Question

I have a code:
<table class="table table-bordered">
<tr>
<td class="align-middle">
</td>
#forelse($products as $product)
<td>
<div class="comparison-item">
<a class="comparison-item-thumb" href="shop-single.html">
<img src="{{ Voyager::image($product->image) }}" alt="Apple iPhone X">
</a>
<a class="comparison-item-title" href="shop-single.html">{{ $product->title }}</a>
</div>
</td>
#empty
Нет товаров для сравнения
#endforelse
</tr>
#foreach($products as $keyp => $product)
#foreach($product->prodChar as $key => $char)
<tr>
<th>{{ $char->prodCharacter->title }}</th>
<td>{{ $char->value }}</td>
<td>-</td>
<td>-</td>
</tr>
#endforeach
#endforeach
<tr>
<th></th>
<td><a class="btn btn-outline-primary btn-sm btn-block" href="#" data-toast data-toast-type="success" data-toast-position="topRight" data-toast-icon="icon-check-circle" data-toast-title="Product" data-toast-message="successfuly added to cart!">Add to Cart</a></td>
<td><a class="btn btn-outline-primary btn-sm btn-block" href="#" data-toast data-toast-type="success" data-toast-position="topRight" data-toast-icon="icon-check-circle" data-toast-title="Product" data-toast-message="successfuly added to cart!">Add to Cart</a></td>
<td><a class="btn btn-outline-primary btn-sm btn-block" href="#" data-toast data-toast-type="success" data-toast-position="topRight" data-toast-icon="icon-check-circle" data-toast-title="Product" data-toast-message="successfuly added to cart!">Add to Cart</a></td>
</tr>
</table>
Image how this show:
I need write: "-". For product where attribute is none. Now I show all attributes in one column for every product. How I can fix this problem? I need compare keys of arrays?

Answer 1

If I understand correctly, you're talking about this small section here:
#foreach($product->prodChar as $key => $char)
<tr>
<th>{{ $char->prodCharacter->title }}</th>
<td>{{ $char->value }}</td>
<td>-</td>
<td>-</td>
</tr>
#endforeach
So you have two options here:
Option #1: You could compare right in the view as follows:
<td>{{ $char->value?: "-" }}</td>
This would return a - whenever your value is null.
Option #2: You could create a mutator within the ProductChar model as follows:
// ...your product model code
public function getValueAttribute() {
return $this->attributes['value']?: "-";
}
This would make it so that when you call $char->value it will use the value (if not null) or return a - if it is null.