Made parentModel an explicit property of the model

SVN: 27174

openbis-ipad/openBIS/openBIS/CISDOBOpenBisModel.h

@@ -30,14 +30,13 @@
  */
 @interface CISDOBOpenBisModel : NSObject <NSFetchedResultsControllerDelegate> {
     CISDOBIpadEntity *_selectedObject;
-    CISDOBOpenBisModel *_parentModel;
 }
 
 @property (strong, nonatomic) NSFetchedResultsController *fetchedResultsController;
 @property (strong, nonatomic) NSManagedObjectContext *managedObjectContext;
 @property (weak, nonatomic) id <NSFetchedResultsControllerDelegate> delegate;
 
-@property (readonly) CISDOBOpenBisModel *parentModel;
+@property (weak, nonatomic) CISDOBOpenBisModel *parentModel;
 
 // Initialize
 - (id)initWithParentModel:(CISDOBOpenBisModel *)parentModel;

openbis-ipad/openBIS/openBIS/CISDOBOpenBisModel.m

@@ -23,10 +23,6 @@
 #import "CISDOBOpenBisModel.h"
 #import "CISDOBIpadEntity.h"
 
-@interface CISDOBOpenBisModel (CISDOBOpenBisModelPrivate)
-@property (weak, nonatomic) CISDOBOpenBisModel *parentModel;
-@end
-
 @implementation CISDOBOpenBisModel
 
 #pragma mark - Initialize
@@ -34,10 +30,10 @@
 {
     if (!(self = [super init])) return nil;
     
-    _parentModel = parentModel;
+    self.parentModel = parentModel;
     _selectedObject = nil;
     
-    if (_parentModel) {
+    if (self.parentModel) {
         self.fetchedResultsController = parentModel.fetchedResultsController;
         self.managedObjectContext = parentModel.managedObjectContext;
     }