Get total of the column with where condition - php

Question

I am trying to get the total of the column Price with condition BillPaid column value should be 0.
My code block is
public function countDue()
{
$getTotalDue = DB::table('ordered_books')
->where('BillPaid', 0)
->sum('Price')
->get();
return response()->json($getTotalDue);
return compact('getTotalDue');
}
controller code block for calling the countDue method.
public function create()
{
return view('pages.booksin', $this->countDue());
}
view page
<table id="showBooksIn" class="table table-bordered gridview">
<thead>
<tr><th>Total Due Amount</th></tr>
</thead>
<tbody>
#if(isset($getTotalDue))
#foreach($getTotalDue as $data)
<tr>
<td> {{$data}} </td>
</tr>
#endforeach
#endif
</tbody>
</table>
but I am getting error as :
Symfony \ Component \ Debug \ Exception \ FatalThrowableError (E_ERROR)
Call to a member function get() on float
My table structure is:

Answer 1

From Laravel's documentation, you don't need to chain the get() method there.
public function countDue(){
$getTotalDue = DB::table('ordered_books')->where('BillPaid', 0)->sum('Price'); //Get the sum using the Laravel's query builder aggregate sum method
return $getTotalDue;
}
public function create()
{
return view('pages.booksin', ['getTotalDue' => $this->countDue()]); //Pass the `countDue()` method output to the view
}
Note
This is a single value, you might want to display it inside a header or paragraph element like so:
#if(isset($getTotalDue))
<h2>{{ $getTotalDue }}</h2>
#endif

Answer 2

You don't need the get() method in there.
public function countDue()
{
$getTotalDue = DB::table('ordered_books')
->where('BillPaid', 0)
->sum('Price');
return response()->json($getTotalDue);
return compact('getTotalDue');
}
Also, you have two return statements right after another, making the second one unreachable.
The second argument of the view() method needs to be an array, or you could use the with() syntax. You should try the following code, and passing the $getTotalDue into the view.
public function create()
{
$getTotalDue = DB::table('ordered_books')
->where('BillPaid', 0)
->sum('Price');
return view('pages.booksin')->with(['getTotalDue' => $getTotalDue]);
}

Answer 3

No need to use get()
$getTotalDue = DB::table('ordered_books')
->where('BillPaid', 0)
->sum('Price');
will return a float with your sum value