how to show all the products laravel - laravel

Question

I have a query where I show all the products that are in that warehouse, but if it has more than one it shows me the x quantity but with the same data, thats because I have ->first(); but If I remove ->first(); it says an error whit the traceability.
$Input = $request->key;
$almacen = $request->almacen;
$name = DB::table('products')
->leftJoin('inventories', 'inventories.product_id', '=', 'products.id')
->whereRaw("(products.reference LIKE '%$Input%' OR products.name LIKE '%$Input%') AND products.deleted_at is null")
->leftJoin('warehouses', 'inventories.warehouse_id', '=', 'warehouses.id')
->where('warehouses.id', $almacen)
->whereNull('products.deleted_at')
->whereNull('inventories.deleted_at')
->select(
'products.reference',
'products.name',
'products.sku',
'products.id',
'inventories.lot',
'inventories.expirationDate',
'inventories.traceability',
'inventories.warehouse_id'
)
->get();
$array = [];
foreach ($name as $key) {
//$key->traceability
array_push($array, $key->reference);
}
//$array = array_unique($array);
$html = '';
if ($name != '[]') {
foreach ($array as $value) {
$prodName = DB::table('products')
->leftJoin('inventories', 'inventories.product_id', '=', 'products.id')
->where('products.reference', $value)
->whereNull('products.deleted_at')
->whereNull('inventories.deleted_at')
->select(
'products.reference',
'products.name',
'products.sku',
'products.id',
'inventories.lot',
'inventories.expirationDate',
'inventories.traceability'
)
->first();
//return $value;
$html .= '<div><a style="color: #000000" class="suggest-element" traceability="'.$prodName->traceability.'" reference="' . $value . '" sku="' . $prodName->sku . '" name="' . $prodName->name . '" lot="' . $prodName->lot . '" expirationDate="' . $prodName->expirationDate . '" data="' . ($value) . " " . ($prodName->name) . '" id="' . $prodName->id . '">' . ($value) . " " . ($prodName->name) ." " . ($prodName->lot) ." " . ($prodName->expirationDate) ." " . ($prodName->traceability) .'</a></div>';
}
} else {
$html .= '<div><a style="color: #000000" class="suggest-element" exist="0" data="Sin coincidencias." id="0">Sin coincidencias.</a></div>';
}
return $html;
});`
I would like to see the products whit the correct data,

Answer 1

Your code is currently only returning the first row in the database because you are using first().
If you remove first(), you will just be left with a Query Builder and will get an error like "Undefined property: Illuminate\Database\Query\Builder::$traceability" - because you haven't got the data yet.
You can use get() instead of first() to get all of the rows, and this will return a Collection.
You can also use ->whereIn('products.reference', $array) instead of looping through all of the elements in $array
You are also comparing $name to the string '[]' instead of an empty array. You can use empty() instead: if (!empty($name)) {
And then you can simply loop through the Collection and add the html:
// Use empty() - This checks if an array is empty or not
if (!empty($name)) {
$products = DB::table('products')
->leftJoin('inventories', 'inventories.product_id', '=', 'products.id')
// Use whereIn - This checks if any of the values in $array match products.reference
->whereIn('products.reference', $array)
->whereNull('products.deleted_at')
->whereNull('inventories.deleted_at')
->select(
'products.reference',
'products.name',
'products.sku',
'products.id',
'inventories.lot',
'inventories.expirationDate',
'inventories.traceability'
)
// Return all rows
->get();
foreach ($products as $product) {
$html .= '<div><a style="color: #000000" class="suggest-element" traceability="' . $product->traceability . '" reference="' . $product->reference . '" sku="' . $product->sku . '" name="' . $product->name . '" lot="' . $product->lot . '" expirationDate="' . $product->->expirationDate . '" data="' . ($product->reference) . " " . ($product->->name) . '" id="' . $product->->id . '">' . ($product->reference) . " " . ($product->name) . " " . ($product->lot) . " " . ($product->expirationDate) . " " . ($product->traceability) . '</a></div>';
}
} else {