Basic database access is working

Limelight/Database/TemporaryHost.m

@@ -7,9 +7,60 @@
 //
 
 #import "TemporaryHost.h"
+#import "Host.h"
+#import "TemporaryApp.h"
+#import "App.h"
 
 @implementation TemporaryHost
 
+- (id) initFromHost:(Host*)host {
+    self = [self init];
+    
+    self.parent = host;
+    
+    self.address = host.address;
+    self.externalAddress = host.externalAddress;
+    self.localAddress = host.localAddress;
+    self.mac = host.mac;
+    self.name = host.name;
+    self.uuid = host.uuid;
+    
+    NSMutableSet *appList = [[NSMutableSet alloc] init];
+
+    for (App* app in host.appList) {
+        TemporaryApp *tempApp = [[TemporaryApp alloc] initFromApp:app withTempHost:self];
+        [appList addObject:tempApp];
+    }
+    
+    self.appList = appList;
+    
+    return self;
+}
+
+- (void) propagateChangesToParent {
+    self.parent.address = self.address;
+    self.parent.externalAddress = self.externalAddress;
+    self.parent.localAddress = self.localAddress;
+    self.parent.mac = self.mac;
+    self.parent.name = self.name;
+    self.parent.uuid = self.uuid;
+    
+    NSMutableSet *applist = [[NSMutableSet alloc] init];
+    for (TemporaryApp* app in self.appList) {
+        // Add a new persistent managed object if one doesn't exist
+        if (app.parent == nil) {
+            NSEntityDescription* entity = [NSEntityDescription entityForName:@"App" inManagedObjectContext:self.parent.managedObjectContext];
+            app.parent = [[App alloc] initWithEntity:entity insertIntoManagedObjectContext:self.parent.managedObjectContext];
+        }
+        
+        [app propagateChangesToParent];
+        
+        [applist addObject:app.parent];
+    }
+    
+    self.parent.appList = applist;
+}
+
 - (NSComparisonResult)compareName:(TemporaryHost *)other {
     return [self.name caseInsensitiveCompare:other.name];
 }