How to get Unique value in blade file laravel - laravel

Question

I want to fetch unique value for filters of all products.
My db structure as follows
id Product category_id format attribute
1 demo1 5 HD test1
2 demmo2 4 SD test3
3 demmo3 4 HD test2
4 demmo4 3 HD test3
I want add filters of format and attribute in product page. But in that HD comming 3 times. I want to display that one only.
I am not getting how to display only single time.
Below is my controller code:
$item = Item::where('active_status', 1)->where('status', "1");
$data['item_count'] = $item;
$data['item'] = $item->paginate(20);
return view('frontend.pages.explore', compact('data'));
Below is blade file
<div class="filter-btn">
#foreach($data['item'] as $resolution)
<a class="btn btn-white-outline display-4" href="">{{array_unique($resolution->format)}}</a>
#endforeach
</div>
I am not getting how to display unique value only. Anyone have idea then let me know

Answer 1

since you are paginating your data, your "first page" might not have all the formats, so you have to do another query to your database:
$formats = DB::table('items')->select('format')->distinct()->get()
...
view(..., compact('data', 'formats'))
in the blade table:
#foreach($formats as $resolution)
<a class="btn btn-white-outline display-4" href="">{{$resolution->format}}</a>
#endforeach

Answer 2

If I am correct about your query, then you need to use groupby to list the items in your controller.
$items = Item::groupBy('format')->get();

Answer 3

The solution would be to create a sperate model for Formatand relationship between it and Product or whatever model that needs format , then fetch formats from its table and apply eager load .
this may look longer than your solution , but this is standards shoiuld be taken for vrious reasons :
less sql queries
more flexibility and options regarding our new table
better and less code to crud format
single source for change
less database data and faster load
...
Product.php
public function format(){
return $this->belongsTo(Format::class);
}
Format.php
public function products(){
return $this->hasMany(Product::class);
}
Usage
in controller
// get all formts eager loaded with products
$formats = Format::with('products')->get();
//get all products
$product = Format::latest()->paginate(20);
return view('frontend.pages.explore', compact( 'products' ,'formats'));
in your view
// all prodcuts
#foreach($formats as $format)
<a class="btn btn-white-outline display-4" href="">{{$format->name}}</a>
#endforeach
// in filter ( at clicking ) no additional query
#foreach($format->products as $product)
...
#endforeach