Using value of controller in the model Laravel

Question

This is my model code, and what I'm trying to get is the number of products that a user wants to add to his cart (quantity). My problem is how do I pass the value that I'm getting in the controller through a request to my model because it's there where the data is being processed.

This is my model file. Here's how the quantity is processed and summed.

Cart.php

    class Cart extends Model
{
    public $items = null;
    public $totalQty = 0;
    public $totalPrice = 0;

    public function __construct($oldCart)
    {
        if ($oldCart)
        {
            $this->items = $oldCart->items;
            $this->totalQty = $oldCart->totalQty;
            $this->totalPrice = $oldCart->totalPrice;
        }
    }

    public function add($item, $id)
    {
        $storedItem = ['qty' => 0, 'price' => $item->price, 'item' => $item];
        if ($this->items)
        {
            if(array_key_exists($id, $this->items))
            {
                $storedItem = $this->items[$id];
            }
        }
        $storedItem['qty']++;
        $storedItem['price'] = $item->price * $storedItem['qty'];
        $this->items[$id] = $storedItem;
        $this->totalQty++;
        $this->totalPrice += $item->price;
    }
}

Here you can see how I'm getting the quantity from the view. I made a $dd to it and it's passing correctly the quantity

ProductController

public function addCart(Request $request) {
        $id = request('product_id');
        $qty = request('qty');
        $product = Product::find($id);
        $oldCart = Session::has('cart') ? Session::get('cart') : null;
        $cart = new Cart($oldCart);
        $cart->add($product, $id, $qty);

        $request->session()->put('cart', $cart);

        return redirect()->route('user.cart');
    }

This is a part of the view. There you can see how I created a form for passing the data.

Show.blade View

                <form action="{{ route('user.addCart') }}">
                    <h6 class="text-muted">Qty :</h6>
                    <select name="qty" id="qty" class="mr-2">
                        <option value="1">1</option>
                        <option value="2">2</option>
                        <option value="3">3</option>
                        <option value="4">4</option>
                        <option value="5">5</option>
                        <option value="6">6</option>
                        <option value="7">7</option>
                        <option value="8">8</option>
                        <option value="9">9</option>
                        <option value="10">10</option>
                        <option value="11">11</option>
                        <option value="12">12</option>
                    </select>
                    <input type="hidden" name="product_id" value="{{ $product->id }}">
                    <button type="submit" class="btn btn-primary" style="border-radius: 20px;" role="button">Add to <i class="fas fa-shopping-cart"></i></button>        
                </form>

srimaln91 · Accepted Answer · 2018-06-26T04:51:19.063

0

You are passing 3 parameters to the add() function from the controller. But it accepts only 2 parameters. You will have to add an another parameter to the add() function.

public function add($item, $id, $quantity = 1)
{
    $storedItem = ['qty' => 0, 'price' => $item->price, 'item' => $item];
    if ($this->items)
    {
        if(array_key_exists($id, $this->items))
        {
            $storedItem = $this->items[$id];
        }
    }
    $storedItem['qty'] += $quantity;
    $storedItem['price'] = $item->price * $storedItem['qty'];
    $this->items[$id] = $storedItem;
    $this->totalQty += $quantity;
    $this->totalPrice += $item->price;

}

edited Jun 26 '18 at 04:51

answered Jun 26 '18 at 04:24

srimaln91

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It's not working. I think that the real problem is in this line in the model: $storedItem['qty']++; Becuase it's adding one more everytime no matter how much is the quantity, but I don't know how to solve it – Daniel Hernandez Jun 26 '18 at 04:39
It's working, thanks a lot. Can you tell me how you did it? Why did you set $quantity = 1? – Daniel Hernandez Jun 26 '18 at 04:58
1 is the default value for that parameter. Please analyse your old code with the new one. Then you'll be able to understand the error. – srimaln91 Jun 26 '18 at 05:10

Using value of controller in the model Laravel

1 Answers1