Add category to CardElement

New method to return a JSON representation of the element.

SoObjects/SOGo/CardElement+SOGo.m

@@ -0,0 +1,54 @@
+/* CardElement+SOGo.m - this file is part of SOGo
+ *
+ * Copyright (C) 2014 Inverse inc.
+ *
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#import <Foundation/NSDictionary.h>
+#import <Foundation/NSString.h>
+
+#import "NSDictionary+Utilities.h"
+
+#import "CardElement+SOGo.h"
+
+
+@implementation CardElement (SOGoExtensions)
+
+/**
+ * Return the JSON representation of the element as a dictionary with two keys:
+ *  - type: the type of the card element, if it exists;
+ *  - value: the value of the card element.
+ * @return a JSON string representation of the element.
+ */
+- (NSString *) jsonRepresentation
+{
+  NSString *v;
+  NSMutableDictionary *attrs;
+
+  attrs = [NSMutableDictionary dictionary];
+
+  v = [self value: 0 ofAttribute: @"type"];
+  if ([v length])
+    [attrs setObject: v
+              forKey: @"type"];
+  [attrs setObject: [self flattenedValuesForKey: @""]
+            forKey: @"value"];
+
+  return [attrs jsonRepresentation];
+}
+
+@end /* NGVCard */