How to use two foreachs in laravel? - php

Question

I have a category table, it is organized by 'parent_id' and 'categoryid'. I need to organize it in a list, where I group the parent class with the daughter class.
I created this code.
In the controller I get the value of the categories.
public function index()
{
$cat1 = Category::where('erp_parentid', '=', 0)->get();
foreach($cat1 as $categoria1){
$cat2 = Category::where('erp_parentid', '=', $categoria1->erp_categoryid)->get();
return view('admin.categories')->with('cat1', $cat1)->with('cat2', $cat2);
}
}
$cat2 is the child category, I get its values through the categoryid of the parent category.
But when I pass the values to the view, all parent categories take the same value as the first.
I used that code to display the values in the view:
<div class="container">
<div class="row">
<ul class="list-group">
#foreach($cat1 as $value)
<a data-toggle="collapse" data-target="#catfilha{{$value->erp_categoryid}}"><li class="list-group-item">{{$value->erp_name}}</li></a>
<ul id="catfilha{{$value->erp_categoryid}}" class="collapse">
#foreach($cat2 as $value2)
<li>{{$value2->erp_name}}</li>
#endforeach
</ul>
#endforeach
</ul>
</div>
</div>
I searched for similar cases here on the site, but found no resemblance, any suggestions? Thank you in advance.

Answer 1

You should define the relations in the model and call them in the view. Try something like this:
In Category Model:
public function getParent()
{
return self::where('erp_parentid', '=', $this->erp_categoryid)->get();
}
In Controller:
public function index()
{
$cat1 = Category::where('erp_parentid', '=', 0)->get();
return view('admin.categories')->with('cat1', $cat1);
}
In the View:
<div class="container">
<div class="row">
<ul class="list-group">
#foreach($cat1 as $value)
<a data-toggle="collapse" data-target="#catfilha{{$value->erp_categoryid}}"><li class="list-group-item">{{$value->erp_name}}</li></a>
<ul id="catfilha{{$value->erp_categoryid}}" class="collapse">
#foreach($value->getParent() as $value2)
<li>{{$value2->erp_name}}</li>
#endforeach
</ul>
#endforeach
</ul>
</div>
</div>
In your code, the return statement is inside the loop, so cat2 will be always the categories from the first item of cat1.