persist conditions to session as well

Author: darryldecode

README.md

@@ -263,14 +263,21 @@ Cart::condition($condition2);
 Cart::condition([$condition1, $condition2]);
 
 // To get all applied conditions on a cart, use below:
-$carConditions = Cart::getConditions();
+$cartConditions = Cart::getConditions();
 foreach($carConditions as $condition)
 {
     $condition->getTarget(); // the target of which the condition was applied
     $condition->getName(); // the name of the condition
     $condition->getType(); // the type
     $condition->getValue(); // the value of the condition
 }
+
+// You can also get a condition that has been applied on the cart by using its name, use below:
+$condition = Cart::getCondition('VAT 12.5%');
+$condition->getTarget(); // the target of which the condition was applied
+$condition->getName(); // the name of the condition
+$condition->getType(); // the type
+$condition->getValue(); // the value of the condition
 ```
 
 NOTE: All cart based conditions should be applied before calling **Cart::getTotal()**

src/Darryldecode/Cart/Cart.php

@@ -38,11 +38,18 @@ class Cart {
     protected $instanceName;
 
     /**
-     * the session key use as storage
+     * the session key use to persist cart items
      *
      * @var
      */
-    protected $sessionKey;
+    protected $sessionKeyCartItems;
+
+    /**
+     * the session key use to persist cart conditions
+     *
+     * @var
+     */
+    protected $sessionKeyCartConditions;
 
     /**
      * our object constructor
@@ -57,7 +64,8 @@ public function __construct($session, $events, $instanceName, $session_key)
         $this->events = $events;
         $this->session = $session;
         $this->instanceName = $instanceName;
-        $this->sessionKey = $session_key;
+        $this->sessionKeyCartItems = $session_key.'_cart_items';
+        $this->sessionKeyCartConditions = $session_key.'_cart_conditions';
         $this->conditions = new CartConditionCollection();
         $this->events->fire($this->getInstanceName().'.created', array($this));
     }
@@ -219,7 +227,7 @@ public function clear()
         $this->events->fire($this->getInstanceName().'.clearing', array($this));
 
         $this->session->put(
-            $this->sessionKey,
+            $this->sessionKeyCartItems,
             array()
         );
 
@@ -247,7 +255,9 @@ public function condition($condition)
 
         if( ! $condition instanceof CartCondition ) throw new InvalidConditionException('Argument 1 must be an instance of \'Darryldecode\Cart\CartCondition\'');
 
-        $this->conditions->push($condition);
+        $this->conditions->put($condition->getName(), $condition);
+
+        $this->saveConditions($this->conditions);
 
         return $this;
     }
@@ -259,7 +269,18 @@ public function condition($condition)
      */
     public function getConditions()
     {
-        return $this->conditions;
+        return new CartConditionCollection($this->session->get($this->sessionKeyCartConditions));
+    }
+
+    /**
+     * get condition by its name
+     *
+     * @param $conditionName
+     * @return CartCondition
+     */
+    public function getCondition($conditionName)
+    {
+        return $this->getConditions()->get($conditionName);
     }
 
     /**
@@ -354,7 +375,7 @@ public function getTotal()
      */
     public function getContent()
     {
-        return (new CartCollection($this->session->get($this->sessionKey)));
+        return (new CartCollection($this->session->get($this->sessionKeyCartItems)));
     }
 
     /**
@@ -364,7 +385,7 @@ public function getContent()
      */
     public function isEmpty()
     {
-        $cart = new CartCollection($this->session->get($this->sessionKey));
+        $cart = new CartCollection($this->session->get($this->sessionKeyCartItems));
 
         return $cart->isEmpty();
     }
@@ -417,7 +438,17 @@ protected function addRow($id, $item)
      */
     protected function save($cart)
     {
-        $this->session->put($this->sessionKey, $cart);
+        $this->session->put($this->sessionKeyCartItems, $cart);
+    }
+
+    /**
+     * save the cart conditions
+     *
+     * @param $conditions
+     */
+    protected function saveConditions($conditions)
+    {
+        $this->session->put($this->sessionKeyCartConditions, $conditions);
     }
 
     /**

tests/CartConditionsTest.php

@@ -327,6 +327,42 @@ public function test_add_item_with_multiple_item_conditions_with_one_condition_w
         $this->assertEquals(85.00, $this->cart->getSubTotal(), 'Cart subtotal with 1 item should be 70');
     }
 
+    public function test_get_condition_by_condition_name()
+    {
+        $itemCondition1 = new CartCondition(array(
+            'name' => 'SALE 5%',
+            'type' => 'sale',
+            'target' => 'subtotal',
+            'value' => '-5%',
+        ));
+        $itemCondition2 = new CartCondition(array(
+            'name' => 'Item Gift Pack 25.00',
+            'type' => 'promo',
+            'target' => 'subtotal',
+            'value' => '-25',
+        ));
+
+        $item = array(
+            'id' => 456,
+            'name' => 'Sample Item 1',
+            'price' => 100,
+            'quantity' => 1,
+            'attributes' => array(),
+        );
+
+        $this->cart->add($item);
+
+        $this->cart->condition([$itemCondition1, $itemCondition2]);
+
+        // get a condition applied on cart by condition name
+        $condition = $this->cart->getCondition($itemCondition1->getName());
+
+        $this->assertEquals($condition->getName(), 'SALE 5%');
+        $this->assertEquals($condition->getTarget(), 'subtotal');
+        $this->assertEquals($condition->getType(), 'sale');
+        $this->assertEquals($condition->getValue(), '-5%');
+    }
+
     protected function fillCart()
     {
         $items = array(