Ability to handle missing accesors for unknown objects in json

-  JSON body that has objects who do not have Model Getter Setters are handled properly

lib/PayPal/Common/PayPalModel.php

@@ -80,6 +80,7 @@ class PayPalModel
             }
             return $list;
         }
+        return array();
     }
 
     /**
@@ -180,16 +181,22 @@ class PayPalModel
     public function fromArray($arr)
     {
         if (!empty($arr)) {
+            // Iterate over each element in array
             foreach ($arr as $k => $v) {
+                // If the value is an array, it means, it is an object after conversion
                 if (is_array($v)) {
-                    $clazz = ReflectionUtil::getPropertyClass(get_class($this), $k);
+                    // Determine the class of the object
+                    if (($clazz = ReflectionUtil::getPropertyClass(get_class($this), $k)) != null){
+                        // If the value is an associative array, it means, its an object. Just make recursive call to it.
                         if (ArrayUtil::isAssocArray($v)) {
                             /** @var self $o */
                             $o = new $clazz();
                             $o->fromArray($v);
                             $this->assignValue($k, $o);
                         } else {
+                            // Else, value is an array of object/data
                             $arr = array();
+                            // Iterate through each element in that array.
                             foreach ($v as $nk => $nv) {
                                 if (is_array($nv)) {
                                     $o = new $clazz();
@@ -204,6 +211,9 @@ class PayPalModel
                     } else {
                         $this->assignValue($k, $v);
                     }
+                } else {
+                    $this->assignValue($k, $v);
+                }
             }
         }
         return $this;
@@ -211,6 +221,7 @@ class PayPalModel
 
     private function assignValue($key, $value)
     {
+        // If we find the getter setter, use that, otherwise use magic method.
         if (ModelAccessorValidator::validate($this, $this->convertToCamelCase($key))) {
             $setter = "set" . $this->convertToCamelCase($key);
             $this->$setter($value);

lib/PayPal/Common/ReflectionUtil.php

@@ -27,11 +27,14 @@ class ReflectionUtil
 
 
     /**
-     * Gets Property Class
+     * Gets Property Class of the given property.
+     * If the class is null, it returns null.
+     * If the property is not found, it returns null.
      *
      * @param $class
      * @param $propertyName
-     * @return string
+     * @return null|string
+     * @throws PayPalConfigurationException
      */
     public static function getPropertyClass($class, $propertyName)
     {
@@ -40,6 +43,11 @@ class ReflectionUtil
             return get_class(new PayPalModel());
         }
 
+        // If the class doesn't exist, or the method doesn't exist, return null.
+        if (!class_exists($class) || !method_exists($class, self::getter($class, $propertyName))) {
+            return null;
+        }
+
         if (($annotations = self::propertyAnnotations($class, $propertyName)) && isset($annotations['return'])) {
             $param = $annotations['return'];
         }
@@ -72,9 +80,7 @@ class ReflectionUtil
         }
 
         if (!($refl =& self::$propertiesRefl[$class][$propertyName])) {
-            $getter = method_exists($class, "get" . ucfirst($propertyName)) ?
+            $getter = self::getter($class, $propertyName);
-                "get" . ucfirst($propertyName) :
-                "get" . preg_replace_callback("/([_\-\s]?([a-z0-9]+))/", "self::replace_callback", $propertyName);
             $refl = new \ReflectionMethod($class, $getter);
             self::$propertiesRefl[$class][$propertyName] = $refl;
         }
@@ -104,4 +110,19 @@ class ReflectionUtil
     {
         return ucwords($match[2]);
     }
+
+    /**
+     * Returns the properly formatted getter function name based on class name and property
+     * Formats the property name to a standard getter function
+     *
+     * @param string $class
+     * @param string $propertyName
+     * @return string getter function name
+     */
+    public static function getter($class, $propertyName)
+    {
+        return method_exists($class, "get" . ucfirst($propertyName)) ?
+            "get" . ucfirst($propertyName) :
+            "get" . preg_replace_callback("/([_\-\s]?([a-z0-9]+))/", "self::replace_callback", $propertyName);
+    }
 }

lib/PayPal/Validation/ModelAccessorValidator.php

@@ -46,7 +46,8 @@ class ModelAccessorValidator
                     return false;
                 }
             }
-        }
             return true;
         }
+        return false;
+    }
 }

tests/PayPal/Test/Common/ModelTest.php

@@ -98,6 +98,28 @@ class ModelTest extends \PHPUnit_Framework_TestCase
         }
     }
 
+    /**
+     * Test Case to determine if the unknown object is returned, it would not add that object to the model.
+     */
+    public function testUnknownObjectConversion()
+    {
+        PayPalConfigManager::getInstance()->addConfigs(array('validation.level' => 'disabled'));
+        $json = '{"name":"test","unknown":{ "id" : "123", "object": "456"},"description":"description"}';
+
+        $obj = new SimpleClass();
+        $obj->fromJson($json);
+
+        $this->assertEquals("test", $obj->getName());
+        $this->assertEquals("description", $obj->getDescription());
+        $resultJson = $obj->toJSON();
+        $this->assertContains("unknown", $resultJson);
+        $this->assertContains("id", $resultJson);
+        $this->assertContains("object", $resultJson);
+        $this->assertContains("123", $resultJson);
+        $this->assertContains("456", $resultJson);
+        PayPalConfigManager::getInstance()->addConfigs(array('validation.level' => 'strict'));
+    }
+
     public function testInvalidMagicMethodWithDisabledValidation()
     {
         PayPalConfigManager::getInstance()->addConfigs(array('validation.level' => 'disabled'));

tests/PayPal/Test/Core/PayPalCredentialManagerTest.php

@@ -146,5 +146,3 @@ class PayPalCredentialManagerTest extends \PHPUnit_Framework_TestCase
         $this->assertAttributeEquals($this->config['acct1.ClientSecret'], 'clientSecret', $cred);
     }
 }
-
-?>

tests/PayPal/Test/Validation/ModelAccessValidatorTest.php

@@ -1,6 +1,7 @@
 <?php
 namespace PayPal\Test\Validation;
 
+use PayPal\Core\PayPalConfigManager;
 use PayPal\Test\Common\SimpleClass;
 use PayPal\Validation\ModelAccessorValidator;
 
@@ -27,6 +28,16 @@ class ModelAccessValidatorTest extends \PHPUnit_Framework_TestCase
         );
     }
 
+    public function setUp()
+    {
+        PayPalConfigManager::getInstance()->addConfigs(array('validation.level' => 'strict'));
+    }
+
+    public function tearDown()
+    {
+        PayPalConfigManager::getInstance()->addConfigs(array('validation.level' => 'strict'));
+    }
+
     /**
      *
      * @dataProvider positiveProvider

tests/sdk_config.ini

@@ -34,7 +34,7 @@ log.FileName=PayPal.log
 ; Logging level can be one of FINE, INFO, WARN or ERROR
 ; Logging is most verbose in the 'FINE' level and
 ; decreases as you proceed towards ERROR
-log.LogLevel=FINE
+log.LogLevel=DEBUG
 
 ;Validation Configuration
 [validation]