Laravel在线购物车

Question

I am using Laravel and Moltin/Cart to build the cart system for an online store. So far, I have managed to integrate the Cart system and continue with paypal. Though, in my controller I have a constructor that prevents the user from viewing, adding or removing items from the cart unless he is authenticated.

public function __construct() {
    parent::__construct();
    $this->beforeFilter('csrf', array('on'=>'post'));
    $this->beforeFilter('auth', array('only'=>array('postAddtocart', 'getCart', 'getRemoveitem')));
}

In order to make paypal to work I had to add several hidden inputs in my view that get the necessary values and passing them to paypal's paying page, like so:

<input type="hidden" name="cmd" value="_xclick">
<input type="hidden" name="business" value="office@shop.com">
<input type="hidden" name="item_name" value="eCommerce Store Purchase">
<input type="hidden" name="currency_code" value="EUR">
<input type="hidden" name="amount" value="{{ Cart::total() }}">
<input type="hidden" name="first_name" value="{{ Auth::user()->firstname }}">
<input type="hidden" name="last_name" value="{{ Auth::user()->lastname }}">
<input type="hidden" name="email" value="{{ Auth::user()->email }}">

{{ HTML::link('/', 'Continue Shopping', array('class'=>'btn btn-default')) }}
<input type="submit" value="Checkout with Paypal" class="btn btn-primary">

The problem is that the user shouldn't be logged in to view, add or remove items from the cart, but to be asked for a login when the submit button is clicked. If I remove the filters from my constructor then, I get a "Trying to get property of non-object" error because of the hidden inputs that make use of the Auth class. I have tried to add a blade if auth::check condition but that wasn't the solution. Any suggestions?

Answer

This did the trick:

@if(!Auth::check())

      {{ HTML::link('users/signin', 'Sign in to pay', array('class'=>'btn btn-primary')) }}

@else
<input type="hidden" name="first_name" value="{{ Auth::user()->firstname }}">
<input type="hidden" name="last_name" value="{{ Auth::user()->lastname }}">
<input type="hidden" name="email" value="{{ Auth::user()->email }}">

{{ HTML::link('/', 'Continue Shopping', array('class'=>'btn btn-default')) }}
<input type="submit" value="Checkout with Paypal" class="btn btn-primary">
@endif

Also, I removed the filters from the constructor and changed the redirection in the sign in function, so that it redirects to the previously accessed page.

Using a session variable to hold the previously visited url

In order to go back to the previously visited page you need to use session::put .

So, in the getSignin function add:

Session::put('previous_url', URL::previous());

And in the postSignin function you need to retrieve the previous_url variable, which is stored in the session, like so:

if ( Session::has('previous_url') )
{
     $url = Session::get('previous_url');
     Session::forget('previous_url');
     return Redirect::to($url);
}

Answer 1

如何将签出按钮替换为登录按钮，然后再次重定向到购物车签出呢？