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• installshield: Windir returns c:\documents & settings\fcuser\windows instead of c:\windows

  - by Sakhawat Ali

  we have a setup developed in installshield vr 6.3. it is a self extractable single setup. it work fine in most on most of the Windows version but on Windows server 2003 64bit in Execution mode when doing RD it return user windows directory against WINDIR i.e. c:\documents & settings\fcuser\windows instead of C:\Windows. According to http://support.microsoft.com/?kbid=186499 it should work fine when i change the compatibility bit of Setup but it didn't. i tried changing compatibility bit of these key too (INSTRUN, SETUP and SETUP1 ) but it didn't work either. but when i when i run the setup within the self extractable by extracting it work fine.

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• Why doesn’t ABPersonViewController show any properties besides the name?

  - by abrahamvegh

  For some reason, ABPersonViewController is unwilling to display any properties aside from the name, no matter what properties are set for it to display. I’m unable to use the AddressBookUI controllers to let a user select a contact to display, since my UI has custom requirements, otherwise I’d go that route (as Apple does in their sample project.) Here’s the code that doesn’t work — am I missing something? - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { // ABContact is of my own creation ABContact *contact = [self contactAtIndexPath: indexPath]; ABPersonViewController *viewController = [[ABPersonViewController alloc] init]; // This returns a valid ABRecordRef, as indicated by the fact that the // controller does display the name of this contact when it is loaded viewController.displayedPerson = contact.record; // Copied directly from Apple’s QuickContacts sample project NSArray *displayedItems = [NSArray arrayWithObjects:[NSNumber numberWithInt:kABPersonPhoneProperty], [NSNumber numberWithInt:kABPersonEmailProperty], [NSNumber numberWithInt:kABPersonBirthdayProperty], nil]; viewController.displayedProperties = displayedItems; [self.navigationController pushViewController: viewController animated: YES]; [viewController release]; }

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• Python decoding issue with hashlib.digest() method

  - by Sorw

  Hello StackOverflow community, Using Google App Engine, I wrote a keyToSha256() method within a model class (extending db.Model) : class Car(db.Model): def keyToSha256(self): keyhash = hashlib.sha256(str(self.key())).digest() return keyhash When displaying the output (ultimately within a Django template), I get garbled text, for example : ?????_??!`?I?!?;?QeqN??Al?'2 I was expecting something more in line with this : 9f86d081884c7d659a2feaa0c55ad015a3bf4f1b2b0b822cd15d6c15b0f00a08 Am I missing something important ? Despite reading several guides on ASCII, Unicode, utf-8 and the like, I think I'm still far from mastering the secrets of string encoding/decoding. After browsing StackOverflow and searching for insights via Google, I figured out I should ask the question here. Any idea ? Thanks !

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• In Django, can you add a method to querysets?

  - by Paul D. Waite

  In Django, if I have a model class, e.g. from django.db import models class Transaction(models.Model): ... then if I want to add methods to the model, to store reasonably complex filters, I can add a custom model manager, e.g. class TransactionManager(models.Manager): def reasonable_complex_filter(self): return self.get_query_set().filter(...) class Transaction(models.Model): objects = TransactionManager() And then I can do: >>> Transaction.objects.reasonably_complex_filter() Is there any way I can add a custom method that can be chained to the end of a query set from the model? I.e. add the custom method in such a way that I can do this: >>> Transaction.objects.filter(...).reasonably_complex_filter()

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• Python: Implementing slicing in __getitem__

  - by nicotine

  I am trying to implement slice functionality for a class I am making that creates a vector representation. I have this code so far, which I believe will properly implement the slice but whenever I do a call like v[4] where v is a vector python returns an error about not having enough parameters. So I am trying to figure out how to define the getitem class to handle both plain indexes and slicing. def __getitem__(self, start, stop, step): indx = start if stop == None: end = start + 1 else: end = stop if step == None: stride = 1 else: stride = step return self.__data[indx:end:stride]

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• django-admin formfield_for_* change default value per/depending on instance

  - by Nick Ma.

  Hi, I'm trying to change the default value of a foreignkey-formfield to set a Value of an other model depending on the logged in user. But I'm racking my brain on it... This: Changing ForeignKey’s defaults in admin site would an option to change the empty_label, but I need the default_value. #Now I tried the following without errors but it didn't had the desired effect: class EmployeeAdmin(admin.ModelAdmin): ... def formfield_for_foreignkey(self, db_field, request=None, **kwargs): formfields= super(EmployeeAdmin, self).formfield_for_foreignkey(db_field, request, **kwargs) if request.user.is_superuser: return formfields if db_field.name == "company": #This is the RELEVANT LINE kwargs["initial"] = request.user.default_company return db_field.formfield(**kwargs) admin.site.register(Employee, EmployeeAdmin) ################################################################## # REMAINING Setups if someone would like to know it but i think # irrelevant concerning the problem ################################################################## from django.contrib.auth.models import User, UserManager class CompanyUser(User): ... objects = UserManager() company = models.ManyToManyField(Company) default_company= models.ForeignKey(Company, related_name='default_company') #I registered the CompanyUser instead of the standard User, # thats all up and working ... class Employee(models.Model): company = models.ForeignKey(Company) ... Hint: kwargs["default"] ... doesn't exist. Thanks in advance, Nick

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• Superfluous python parameters

  - by Leif Andersen

  I've noticed a discrepancy in the way that python parameters are called. In every other language I've dealt with, you either have foo() meaning either no parameters, or as many parameters as you like, or foo(arg1, arg2,...,argn) where you pass in the same number of parameters to define the function and call it. In python however, I've noticed that the function definitions, and when the function is called, can have two different parameters sets, this usually consists of: class foo(object): def bar(self, arg1, arg2): pass However, when I want to call the function, all I have to do is: zoo = foo() zoo.bar(arg1, arg2) Where did the self parameter go? Thank you.

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• Android, simply view question about view reset

  - by javano

  I have a button in my activity, when you click the button an if statement is ran against its text label; if(BTN_1.getText()=="firsttext"){ //do some stuff, then... BTN_1.setText("secondtext"); }else if(BTN_1.getText()=="secondtext"){ //do other stuff, then... BTN_1.setText("firsttext"); } Firstly, if I hit the home button and go back to the desktop and then click back onto my app the view has reset its self; if I press the button and leave it in a state where the text of the button is "secondtext", when I return to my app it says "firsttext", how can I stop the view of my app refreshing its self like this? Secondly, under my XML layout I have defined the buttons text; android:text="firsttext" But this won't actually match my if statement above, under onCreate of this app I have: BTN_CONNECT.setText("Connect"); But visually the text of the button is exactly the same, why won't it match? Thanks for reading :)

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• xCode "Property access results unused - getters should not be used for side effects"

  - by David DelMonte

  Hi all, I'm getting this warning when I'm calling a local routine. My code is this: -(void)nextLetter { // NSLog(@"%s", __FUNCTION__); currentLetter ++; if(currentLetter > (letters.count - 1)) { currentLetter = 0; } self.fetchLetter; } I'm getting the warning on the self.fetchLetter statement. That routine looks like this: - (void)fetchLetter { // NSLog(@"%s", __FUNCTION__); NSString *wantedLetter = [[letters objectAtIndex: currentLetter] objectForKey: @"langLetter"]; NSString *wantedUpperCase = [[letters objectAtIndex: currentLetter] objectForKey: @"upperCase"]; ..... } I prefer to fix warning messages, is there a better way to write this? Thanks!

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• Distributing APNS providers

  - by Sam

  I'm writing a business-focused iPhone app which includes a self-hosted server component. I'd like to include push notification functionality in the server; reading through the programming guide it looks as if this would involve either: Distributing the provider certificate with the server component - this doesn't sound like a terribly good idea (even if Apple permits it?) Hosting a shared notification provider and forwarding notifications to APNS from the servers. For an ongoing, high-availability service, this is likely to require including a subscription pricing component, which I would prefer to avoid. Require customers to apply for their own provider certificate. However, it's not clear whether multiple organisations are allowed to apply for provider certificates with a single bundle ID, and it would significantly increase the barrier to adoption. APNS looks to me as if it's specifically geared for centrally hosted services. Is anyone distributing self-hosted notification providers? Are there any other options?

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• UIButton not firing selector if I draw it using CALayer

  - by Horatiu Paraschiv

  Hi everybody I create this button like this: _myButton = [[UIButton buttonWithType:UIButtonTypeCustom] retain]; DLBadgeLayerDelegate *layerDelegate = [[DLBadgeLayerDelegate alloc] init]; _myButton.frame = CGRectMake(0.0 , 0.0, 100.0, 100.0); [_myButton addTarget:self action:@selector(myButtonTapped:) forControlEvents:UIControlEventTouchUpInside]; _myButton.layer.backgroundColor = [[UIColor redColor] CGColor]; _myButton.center = CGPointMake(10.0, 10.0); [self addSubview:_myButton]; [_myButton release]; The button appears on the screen but if I tap on it nothing happens. If I just create a Rounded rect button instead with no custom drawing on its layer or if I just leave the layer line of code out all works well. Do you have any Idea why do I get this behaviour as I would like to do some custom drawing in the button's layer?

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• Memory leak using NSMutableArray in RootViewController called from App Delegate

  - by Lauren Quantrell

  I've written code to restore the state of my app, but there's a memory leak in the NSMutableArray. I'm new to Xcode so I apologize if this is something trivial I have overlooked. Any help is appreciated. lq AppDelegate.m - (void)applicationDidFinishLaunching:(UIApplication *)application { [rootViewController restoreState]; } RootViewController.h @interface rootViewController : UIViewController { NSMutableArray *offendingNSMutableArray; } @property (nonatomic, retain) NSMutableArray *offendingNSMutableArray; RootViewController.m @synthesize offendingNSMutableArray; - (void)restoreState { // Gets an array stored in the user defaults plist NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults]; self.offendingNSMutableArray = [[NSMutableArray alloc] initWithArray:[userDefaults objectForKey:kArrayValue]]; } - (void)viewDidUnload { self.offendingNSMutableArray = nil; } - (void)dealloc { [offendingNSMutableArray release]; }

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• iPhone Core Data: request for member 'tableView' in something not a structure or union

  - by Nic Hubbard

  I am trying to use CoreData to populate a UITableView. I have been using the developer "Locations" project, and I think I have everything correct. But, now I am getting the following error when I build: request for member 'tableView' in something not a structure or union Why would it be confused about tableView? I am using it many times in the methods. The errors seem to be coming from: [self.tableView insertRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade]; [self.tableView scrollToRowAtIndexPath:[NSIndexPath indexPathForRow:0 inSection:0] atScrollPosition:UITableViewScrollPositionTop animated:YES]; Ideas?

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• Python + MySQLdb executemany

  - by lhahne

  I'm using Python and its MySQLdb module to import some measurement data into a Mysql database. The amount of data that we have is quite high (currently about ~250 MB of csv files and plenty of more to come). Currently I use cursor.execute(...) to import some metadata. This isn't problematic as there are only a few entries for these. The problem is that when I try to use cursor.executemany() to import larger quantities of the actual measurement data, MySQLdb raises a TypeError: not all arguments converted during string formatting My current code is def __insert_values(self, values): cursor = self.connection.cursor() cursor.executemany(""" insert into values (ensg, value, sampleid) values (%s, %s, %s)""", values) cursor.close() where values is a list of tuples containing three strings each. Any ideas what could be wrong with this? Edit: The values are generated by yield (prefix + row['id'], row['value'], sample_id) and then read into a list one thousand at a time where row is and iterator coming from csv.DictReader.

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• EXC_BAD_ACCESS due to PostNotification

  - by Sagar Mane

  Hello All, I am facing one issue regarding one module let me clear the flow for the same. I have one customized UITableviewCell. When I am getting some new information I am posting one notification [[NSNotificationCenter defaultCenter] postNotificationName:KGotSomething object:nil userInfo:message]; In view where I am maintaining the table I am initiating a customized cell - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { cell= [[CustomCell alloc] initWithFrame: reuseIdentifier:identifier document:doc]; return cell; } now in customcell.mm - (id)initWithFrame:(CGRect)frame reuseIdentifier:(NSString *)reuseIdentifier { [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(GotSomething:) name:KGotSomething object:nil]; } and in dealloc - (void)dealloc { [[NSNotificationCenter defaultCenter] removeObserver:self name:KGotSomething object:nil]; } Now my app crashes due to this notification and dealloc is never get called. Can you guys help me, how to get this working or anything I m doing wrong over here... Thanks, Sagar

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• Rails validation "failing when succeeding"

  - by Fredrik

  I have this in my user.rb: attr_accessor :old_password def validate unless password.nil? errors.add_to_base("Old password entered incorrect") unless self.valid_password? old_password end end I have old_password as a a virtual attribute that has to be validated as matching with the current before updating to a new password. My problem is that upon correct entering ( password == password confirmation and self.valid_password? old_password ) an error will yield and pass me back to the form. The strange part is that the data will actually be updated in the database, and it will not on wrong input; although it will yield the very same error ("Old password entered incorrect"). What on earth am I doing wrong?

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• Push/Present Modal View Controller

  - by Yakattak

  I have a table in my view controller (let's call it TVC1). I have rows in TVC1 that are used so the user can input some more data in addition to the data on TVC1. So, when someone taps a specific row in TVC1, it will show another view controller (let's call it TVC2). However, when TVC2 is shown, all of the data in TVC1 is cleared. How can I save the data in TVC1? Should I do it through the app delegate? DescriptionInputViewController *descriptionController = [[DescriptionInputViewController alloc] initWithNibName:@"DescriptionInputView" bundle:nil]; [self presentModalViewController:navController animated:YES]; [self.navigationController pushViewController:descriptionController animated:YES]; [descriptionController release];

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• Anti-aliasing not working when resizing a UIWebView

  - by nickcartwright

  I'd like to add a Web View to my app at 60% scale (like seen in Safari in the browse other windows view): Notice how the content looks nice and Aliased! If I try and add the same Web view to my app: NSURL *url = [NSURL URLWithString:@"http://www.google.co.uk?q=hello"]; NSURLRequest *request = [NSURLRequest requestWithURL:url]; UIWebView *webView = [[UIWebView alloc] initWithFrame:CGRectMake(0, 0, 320, 400)]; webView.delegate=self; [webView loadRequest:request]; [self.view addSubview:webView]; Using the following transformation: [webView setTransform:CGAffineTransformMakeScale(0.6, 0.6)]; ..the scale is really bad quality and there appears to be no anti-aliasing. Does anyone know why this is happening or have a suggestion on how it could be fixed? Thanks! Nick.

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• iPhone + AdMob + remove the Ad view

  - by pratik

  Hello, I have integrated AdMob in my iPhone application. I am adding an Ad view in of my UIViewController as follows: ProgrammaticAdViewController *temp = [[ProgrammaticAdViewController alloc] init]; temp = [[ProgrammaticAdViewController alloc] initWithNibName:nil bundle:nil]; [self.view addSubview:temp.view]; So, I will be able to see an Ad view on top of my UIViewController. Now I have two problems: I am not able to tap on certain buttons of my UIViewController on which I have added the Ad View. So, for temporary purpose I adding the Ad view as: [self.view insertSubView:temp.view atIndex:1]; I want to remove the Ad view after sometime so I am using: [temp.view removeFromSuperView]; But my Ad view is not being removed. Please help me. Regards, Pratik

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• Django - Form validation error

  - by Igor G.

  Hello, I have a model like this: class Entity(models.Model): entity_name = models.CharField(max_length=100) entity_id = models.CharField(max_length=30, primary_key=True) entity_parent = models.CharField(max_length=100, null=True) photo_id = models.CharField(max_length=100, null=True) username = models.CharField(max_length=100, null=True) date_matched_on = models.CharField(max_length=100, null=True) status = models.CharField(max_length=30, default="Checked In") def __unicode__(self): return self.entity_name class Meta: app_label = 'match' ordering = ('entity_name','date_matched_on') verbose_name_plural='Entities' I also have a view like this: def photo_match(request): ''' performs an update in the db when a user chooses a photo ''' form = EntityForm(request.POST) form.save() And my EntityForm looks like this: class EntityForm(ModelForm): class Meta: model = Entity My template's form returns a POST back to the view with the following values: {u'username': [u'admin'], u'entity_parent': [u'PERSON'], u'entity_id': [u'152097'], u'photo_id': [u'2200734'], u'entity_name': [u'A.J. McLean'], u'status': [u'Checked Out'], u'date_matched_on': [u'5/20/2010 10:57 AM']} And form.save() throws this error: Exception in photo_match: The Entity could not be changed because the data didn't validate. I have been trying to figure out why this is happening, but cannot pinpoint the exact problem. I can change my Entities in the admin interface just fine. If anybody has a clue about this I would greatly appreciate it! Thanks, Igor

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• How to save many to many fields by using an auto complete text box

  - by iHeartDucks

  If I have two models like class Author(models.Model): name = models.CharField(max_length=100) title = models.CharField(max_length=3, choices=TITLE_CHOICES) birth_date = models.DateField(blank=True, null=True) def __unicode__(self): return self.name class Book(models.Model): name = models.CharField(max_length=100) authors = models.ManyToManyField(Author) I can render the book form using a model form like this class BookForm(ModelForm): class Meta: model = Book widgets = { 'authors' : TextInput() } The authors fields is now rendered as a text box and I want to use an auto complete (where I can enter multiple authors) text box to populate the field. I am having a hard time to understand how I can save the authors in view function? I am thinking of using a hidden field to record all the author id's but I am having a hard time figuring out how to save it on the postback.

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• Django admin site auto populate combo box based on input

  - by user292652

  hi i have to following model class Match(models.Model): Team_one = models.ForeignKey('Team', related_name='Team_one') Team_two = models.ForeignKey('Team', related_name='Team_two') Stadium = models.CharField(max_length=255, blank=True) Start_time = models.DateTimeField(auto_now_add=False, auto_now=False, blank=True, null=True) Rafree = models.CharField(max_length=255, blank=True) Judge = models.CharField(max_length=255, blank=True) Winner = models.ForeignKey('Team', related_name='winner', blank=True) updated = models.DateTimeField('update date', auto_now=True ) created = models.DateTimeField('creation date', auto_now_add=True ) def save(self, force_insert=False, force_update=False): pass @models.permalink def get_absolute_url(self): return ('view_or_url_name') class MatchAdmin(admin.ModelAdmin): list_display = ('Team_one','Team_two', 'Winner') search_fields = ['Team_one','Team_tow'] admin.site.register(Match, MatchAdmin) i was wondering is their a way to populated the winner combo box once the team one and team two is selected in admin site ?

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• How to correctly use ABPersonViewController with ABPeoplePickerNavigationController to view Contact

  - by Maha

  I'm attempting to add a feature to my app that allows the user to select a contact from an ABPeoplePickerNavigationController, which then displays an ABPersonViewController corresponding to the contact they picked. At that point, I want the user to be able to click on a contact's phone number and have my app respond with custom behavior. I've got the ABPeoplePickerNavigationController working fine, but I'm running into a problem displaying the ABPersonViewController. I can get the ABPersonViewController to animate onto the screen just fine, but it only displays the contact's photo, name, and company name. None of the contact's other fields are displayed. I'm using the 'displayedProperties' element in the ABPersonViewController to tell the program to display phone numbers. This creates some strange behavior; when I select a contact that has no phone numbers assigned, the contact shows up with "No Phone Numbers" written in the background (as you'd expect), but when selecting a contact that does have a phone number, all I get is a blank contact page (without the "No Phone Numbers" text). Here's the method in my ABPeoplePickerNavigationController delegate class that I'm using to create my PersonViewController class, which implements the ABPersonViewController interface: - (BOOL) peoplePickerNavigationController:(ABPeoplePickerNavigationController *)peoplePicker shouldContinueAfterSelectingPerson:(ABRecordRef)person { BOOL returnState = NO; PersonViewController *personView = [[PersonViewController alloc] init]; [personView displayContactInfo:person]; [peoplePicker pushViewController:personView animated:YES]; [personView release]; return returnState; } Here's my PersonViewController.h header file: #import <UIKit/UIKit.h> #import <Foundation/Foundation.h> #import <AddressBookUI/AddressBookUI.h> @interface PersonViewController : UIViewController <ABPersonViewControllerDelegate> { } - (void) displayContactInfo: (ABRecordRef)person; @end Finally, here's my PersonViewController.m that's creating the ABPersonViewController to view the selected contact: #import "PersonViewController.h" @implementation PersonViewController - (void) displayContactInfo: (ABRecordRef)person { ABPersonViewController *personController = [[ABPersonViewController alloc] init]; personController.personViewDelegate = self; personController.allowsEditing = NO; personController.displayedPerson = person; personController.addressBook = ABAddressBookCreate(); personController.displayedProperties = [NSArray arrayWithObjects: [NSNumber numberWithInt:kABPersonPhoneProperty], nil]; [self setView:personController.view]; [[self navigationController] pushViewController:personController animated:YES]; [personController release]; } - (BOOL) personViewController:(ABPersonViewController*)personView shouldPerformDefaultActionForPerson:(ABRecordRef)person property:(ABPropertyID)property identifier:(ABMultiValueIdentifier)identifierForValue { return YES; } @end Does anyone have any idea as to why I'm seeing this blank Contact screen instead of one with clickable phone number fields?

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• Convert sqlalchemy row object to python dict

  - by Anurag Uniyal

  or a simple way to iterate over columnName, value pairs? My version of sqlalchemy is 0.5.6 Here is the sample code where I tried using dict(row), but it throws exception , TypeError: 'User' object is not iterable import sqlalchemy from sqlalchemy import * from sqlalchemy.ext.declarative import declarative_base from sqlalchemy.orm import sessionmaker print "sqlalchemy version:",sqlalchemy.__version__ engine = create_engine('sqlite:///:memory:', echo=False) metadata = MetaData() users_table = Table('users', metadata, Column('id', Integer, primary_key=True), Column('name', String), ) metadata.create_all(engine) class User(declarative_base()): __tablename__ = 'users' id = Column(Integer, primary_key=True) name = Column(String) def __init__(self, name): self.name = name Session = sessionmaker(bind=engine) session = Session() user1 = User("anurag") session.add(user1) session.commit() # uncommenting next line throws exception 'TypeError: 'User' object is not iterable' #print dict(user1) # this one also throws 'TypeError: 'User' object is not iterable' for u in session.query(User).all(): print dict(u) Running this code on my system outputs: sqlalchemy version: 0.5.6 Traceback (most recent call last): File "untitled-1.py", line 37, in <module> print dict(u) TypeError: 'User' object is not iterable

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• NSPredicate problem with fetchedResultsController

  - by RyJ

  Please help! I've been trying to figure this out for way too long. I can't seem to use an NSPredicate in my fetchedResultsController method: - (NSFetchedResultsController *)fetchedResultsController { if (fetchedResultsController != nil) return fetchedResultsController; NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init]; NSEntityDescription *entity = [NSEntityDescription entityForName:@"Tweet" inManagedObjectContext:managedObjectContext]; [fetchRequest setEntity:entity]; NSPredicate *predicate = [NSPredicate predicateWithFormat: @"column == 0"]; [fetchRequest setPredicate:predicate]; [fetchRequest setReturnsObjectsAsFaults:NO]; [fetchRequest setFetchBatchSize:20]; NSSortDescriptor *sortDescriptor = [[NSSortDescriptor alloc] initWithKey:@"created_at" ascending:NO]; NSArray *sortDescriptors = [[NSArray alloc] initWithObjects:sortDescriptor, nil]; [fetchRequest setSortDescriptors:sortDescriptors]; NSFetchedResultsController *aFetchedResultsController = [[NSFetchedResultsController alloc] initWithFetchRequest:fetchRequest managedObjectContext:managedObjectContext sectionNameKeyPath:nil cacheName:@"Root"]; aFetchedResultsController.delegate = self; self.fetchedResultsController = aFetchedResultsController; [aFetchedResultsController release]; [fetchRequest release]; [sortDescriptor release]; [sortDescriptors release]; return fetchedResultsController; } Yet, in another method, where I simply check to see if an object exists, the predicate works like a charm: - (BOOL)findObjectWithKey:(NSString *)key andValue:(NSString *)value sortBy:(NSString *)sort { NSFetchRequest *request = [[NSFetchRequest alloc] init]; NSEntityDescription *entity = [NSEntityDescription entityForName:@"Tweet" inManagedObjectContext:managedObjectContext]; [request setEntity:entity]; NSPredicate *predicate = [NSPredicate predicateWithFormat: @"%K == %@", key, value]; [request setPredicate:predicate]; [request setReturnsObjectsAsFaults:NO]; NSSortDescriptor *sortDescriptor = [[NSSortDescriptor alloc] initWithKey:sort ascending:YES]; NSArray *sortDescriptors = [[NSArray alloc] initWithObjects:sortDescriptor, nil]; [request setSortDescriptors:sortDescriptors]; NSFetchedResultsController *aFetchedResultsController = [[NSFetchedResultsController alloc] initWithFetchRequest:request managedObjectContext:managedObjectContext sectionNameKeyPath:nil cacheName:@"Root"]; aFetchedResultsController.delegate = self; NSError *error = nil; NSArray *result = [managedObjectContext executeFetchRequest:request error:&error]; [aFetchedResultsController release]; [request release]; [sortDescriptor release]; [sortDescriptors release]; if ((result != nil) && ([result count]) && (error == nil)) { return TRUE; } else { return FALSE; }} What am I doing wrong? Thanks in advance!

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