How to sum up total in an index view in Laravel - php

Question

I'm working on an invoice system in a homemade CRM. I try to sum up the price for all of my items to get the grand total.
I don't know how to get the grandtotal in my index view.
Here is my table in factures/show.blade.php
<table class="table table-striped table-bordered">
<thead>
<tr>
<th>Description</th>
<th class="text-right">Prix</th>
</tr>
</thead>
<tbody>
#foreach($facture->items as $item)
<tr>
<td>{{$item->description}}</td>
<td class="text-right">{{$item->prix}} $</td>
</tr>
#endforeach
<tr>
<td class="text-right">TPS</td>
<td class="text-right">{{ $item->calcultps() }} $</td>
</tr>
<tr>
<td class="text-right">TVQ</td>
<td class="text-right">{{ $item->calcultvq() }} $</td>
</tr>
<tr>
<td class="text-right">Total</td>
<td class="text-right">{{ $item->calculgrandtotal() }} $</td>
</tr>
</tbody>
</table>
and here is my table in factures/index.blade.php
<table class="table table-striped">
<thead><tr>
<th><p># de facture</p></th>
<th><p>Date</p></th>
<th><p>Description</p></th>
<th><p>Client</p></th>
<th class="text-right"><p>Montant</p></th>
<th class="text-right"><p>TPS</p></th>
<th class="text-right"><p>TVQ</p></th>
<th class="text-right"><p>Grand total</p></th>
</tr></thead>
#foreach($factures as $facture)
<tr>
<td>{{$facture->id}}</td>
<td>{{ $facture->created_at->format('d F Y') }}</td>
<td>{{ $facture->courtedescription}}</td>
<td>{{ $facture->client->prenom}} {{ $facture->client->nom}}</td>
<td class="text-right">{{ $facture->montant}} $</td>
<td class="text-right">{{ $facture->tps}} $</td>
<td class="text-right">{{ $facture->tvq}} $</td>
<td class="text-right"> IDONTKNOW $</td>
</tr>
#endforeach
</table>
here is my Item.php model
use Illuminate\Database\Eloquent\Collection;
class Item extends \Eloquent {
protected $fillable = ['nom', 'prix'];
public function facture()
{
return $this->belongsTo('Facture');
}
public function calcultps(){
$total = DB::table('items')->sum('prix');
$tps = $total *0.05;
echo $tps;
}
public function calcultvq(){
$total = DB::table('items')->sum('prix');
$tvq = $total *0.09975;
echo $tvq;
}
public function calculgrandtotal(){
$totalsanstaxes = DB::table('items')->sum('prix');
$tps = $totalsanstaxes *0.05;
$tvq = $totalsanstaxes *0.09975;
echo $totalsanstaxes+$tps+$tvq;
}
}
and my Facture.php model
use Illuminate\Database\Eloquent\Collection;
class Facture extends \Eloquent {
protected $fillable = [];
public function client()
{
return $this->belongsTo('Client');
}
public function items(){
return $this->hasMany('Item', 'facture_id');
}
}
my index function for my FacturesController.php
public function index()
{
$factures = Facture::all();
return View::make('factures.index')->withFactures($factures);
}
my show function for my FacturesController.php
public function show($id)
{
$facture = Facture::find($id);
return View::make('factures.show')->withFacture($facture);
}
I tried these (in the factures/index.blade.php) without success:
{{ $item->calculgrandtotal() }}
{{ $items->calculgrandtotal() }}
{{ $facture->items->calculgrandtotal() }}
and this returns an array
{{$facture->items}}
but this doesn't work
{{$facture->items->prix}}
I know there is something I don't understand here. and I wonder how to print out the grandtotal in my index view for each of the invoice?

Answer 1

I used the comment of #MattBurrow (thank you) and I managed to print out what I want using this:
index.blade.php
{{ Item::calculgrandtotal() }}
Item.php model
static function calculgrandtotal(){
$totalsanstaxes = DB::table('items')->sum('prix');
$tps = $totalsanstaxes *0.05;
$tvq = $totalsanstaxes *0.09975;
return $totalsanstaxes+$tps+$tvq;
}