Deserialize the response body in case of an ApiException

Currently it's not possible to use custom models in the ApiException because the body gets not deserialized to Json and therefore the object deserializer cannot deserialize it to a custom model. This pull request uses the same mechanism as used to deserialize the response body in case of a 2xx status code.

Author: akkie

modules/swagger-codegen/src/main/resources/php/ApiClient.mustache

@@ -239,6 +239,11 @@ class ApiClient
                 $data = $http_body;
             }
         } else {
+            $data = json_decode($http_body);
+            if (json_last_error() > 0) { // if response is a string
+                $data = $http_body;
+            }
+
             throw new ApiException(
                 "[".$response_info['http_code']."] Error connecting to the API ($url)",
                 $response_info['http_code'], $http_header, $http_body

modules/swagger-codegen/src/main/resources/php/ApiException.mustache

@@ -46,38 +46,38 @@ use \Exception;
 class ApiException extends Exception
 {
 
-    /** 
-     * The HTTP body of the server response.
-     * @var string
+    /**
+     * The HTTP body of the server response either as Json or string.
+     * @var mixed
      */
     protected $responseBody;
-  
+
     /**
      * The HTTP header of the server response.
      * @var string[]
      */
     protected $responseHeaders;
-  
+
     /**
      * The deserialized response object
      * @var $responseObject;
      */
     protected $responseObject;
- 
+
     /**
      * Constructor
      * @param string $message         Error message
-     * @param string $code            HTTP status code
+     * @param int    $code            HTTP status code
      * @param string $responseHeaders HTTP response header
-     * @param string $responseBody    Deseralized response object
+     * @param mixed  $responseBody    HTTP body of the server response either as Json or string
      */
     public function __construct($message="", $code=0, $responseHeaders=null, $responseBody=null)
     {
         parent::__construct($message, $code);
         $this->responseHeaders = $responseHeaders;
         $this->responseBody = $responseBody;
     }
-  
+
     /**
      * Gets the HTTP response header
      *
@@ -87,17 +87,17 @@ class ApiException extends Exception
     {
         return $this->responseHeaders;
     }
-  
+
     /**
-     * Gets the HTTP response body
+     * Gets the HTTP body of the server response either as Json or string
      *
-     * @return string HTTP response body
+     * @return mixed HTTP body of the server response either as Json or string
      */
     public function getResponseBody()
     {
         return $this->responseBody;
     }
-  
+
     /**
      * Sets the deseralized response object (during deserialization)
      * @param mixed $obj Deserialized response object