## Installation

Install the package through [Composer](http://getcomposer.org/). Edit your project's `composer.json` file by adding:

```php
"require": {
	"laravel/framework": "4.0.*",
	"gloudemans/shoppingcart": "dev-master"
}
```

Next, run the Composer update command from the Terminal:

    composer update
    
Now all you have to do is add the service provider of the package and alias the package. To do this open your `app/config/app.php` file.

Add a new line to the `service providers` array:

	'\Gloudemans\Shoppingcart\ShoppingcartServiceProvider'
	
And finally add a new line to the `aliases` array:

	'Cart'            => 'Gloudemans\Shoppingcart\Facades\Cart',
	
Now you're ready to start using the shoppingcart in your application.

## Usage

The shoppingcart gives you the following methods to use:

**Cart::add()**

```php
/**
 * Add a row to the cart
 * 
 * @param string $id      Unique ID of the item
 * @param string $name    Name of the item
 * @param int    $qty     Item qty to add to the cart
 * @param float  $price   Price of one item
 * @param Array  $options Array of additional options, such as 'size' or 'color'
 */

Cart::add('293ad', 'Product 1', 1, 9.99, array('size' => 'large'));
```
     
**Cart::addBatch()**

```php
/**
 * Add multiple rows to the cart
 * 
 * @param Array $items An array of items to add, use array keys corresponding to the 'add' method's parameters
 */
 
Cart::addBatch(array(
	array('id' => '293ad', 'name' => 'Product 1', 'qty' => 1, 'price' => 10.00),
	array('id' => '4832k', 'name' => 'Product 2', 'qty' => 1, 'price' => 10.00, 'options' => array('size' => 'large'))     
));
```

**Cart::update()**

```php
/**
 * Update the quantity of one row of the cart
 * 
 * @param  string        $rowId       The rowid of the item you want to update
 * @param  integer|Array $attribute   New quantity of the item|Array of attributes to update
 * @return boolean
 */
 $rowId = 'da39a3ee5e6b4b0d3255bfef95601890afd80709';
 
Cart::update($rowId, 2);
 
OR
 
Cart::update($rowId, array('name' => 'Product 1'));
```

**Cart::remove()**

```php
/**
 * Remove a row from the cart
 * 
 * @param  string  $rowId The rowid of the item
 * @return boolean   
 */
 
 $rowId = 'da39a3ee5e6b4b0d3255bfef95601890afd80709';
 
Cart::remove($rowId);
```
     
**Cart::get()**

```php
/**
 * Get a row of the cart by its ID
 * 
 * @param  string $rowId The ID of the row to fetch
 * @return CartRowCollection
 */
 
$rowId = 'da39a3ee5e6b4b0d3255bfef95601890afd80709';
 
Cart::get($rowId);
```
     
**Cart::content()**

```php
/**
 * Get the cart content
 *
 * @return CartCollection
 */

Cart::content();
```	 
	 
**Cart::destroy()**

```php
/**
 * Empty the cart
 *
 * @return boolean
 */
 
Cart::destroy();
```
	 
**Cart::total()**

```php
/**
 * Get the price total
 * 
 * @return float
 */
  
Cart::total();
```
     
**Cart::count()**

```php
/**
 * Get the number of items in the cart
 *
 * @param  boolean $totalItems Get all the items (when false, will return the number of rows)
 * @return int
 */
 
 Cart::count();      // Total items
 Cart::count(false); // Total rows
```

**Cart::search()**

```php
/**
 * Search if the cart has a item
 * 
 * @param  Array  $search An array with the item ID and optional options
 * @return Array|boolean
 */
 
 Cart::search(array('id' => 1, 'options' => array('size' => 'L'))); // Returns an array of rowid(s) of found item(s) or false on failure 
```
     
## Collections

As you might have seen, the `Cart::content()` and `Cart::get()` methods both return a Collection, a `CartCollection` and a `CartRowCollection`.

These Collections extends the 'native' Laravel 4 Collection class, so all methods you know from this class can also be used on your shopping cart. With some addition to easily work with your carts content.

## Instances

Now the packages also supports multiple instances of the cart. The way this works is like this:

You can set the current instance of the cart with `Cart::instance('newInstance')`, at that moment, the active instance of the cart is `newInstance`, so when you add, remove or get the content of the cart, you work with the `newInstance` instance of the cart.
If you want to switch instances, you just call `Cart::instance('otherInstance')` again, and you're working with the `otherInstance` again.

So a little example:

```php
Cart::instance('shopping')->add('192ao12', 'Product 1', 1, 9.99);

// Get the content of the 'shopping' cart
Cart::content();

Cart::instance('wishlist')->add('sdjk922', 'Product 2', 1, 19.95, array('size' => 'medium'));

// Get the content of the 'wishlist' cart
Cart::content();

// If you want to get the content of the 'shopping' cart again...
Cart::instance('shopping')->content();

// And the count of the 'wishlist' cart again
Cart::instance('wishlist')->count();
```
    
N.B. Keep in mind that the cart stays in the last set instance for as long as you don't set a different one during script execution.

N.B.2 The default cart instance is called `main`, so when you're not using instances,`Cart::content();` is the same as `Cart::instance('main')->content()`.

## Example

Below is a little example of how to list the cart content in a table:

```php
// Controller

Cart::add('192ao12', 'Product 1', 1, 9.99);
Cart::add('1239ad0', 'Product 2', 2, 5.95, array('size' => 'large'));

// View

<table>
   	<thead>
       	<tr>
           	<th>Product</th>
           	<th>Qty</th>
           	<th>Item Price</th>
           	<th>Subtotal</th>
       	</tr>
   	</thead>

   	<tbody>

   	<?php foreach($cart as $row) :?>

       	<tr>
           	<td>
               	<p><strong><?php echo $row->name;?></strong></p>
               	<p><?php echo ($row->options->has('size') ? $row->options->size : '');?></p>
           	</td>
           	<td><input type="text" value="<?php echo $row->qty;?>"></td>
           	<td>$<?php echo $row->price;?></td>
           	<td>$<?php echo $row->subtotal;?></td>
       </tr>

   	<?php endforeach;?>

   	</tbody>
</table>
```