downloaded video - AFHTTPRequestOperation vs. NSURLSessionDownloadTask - io

I try to update my existing download-model, so I have replaced my old code:
AFHTTPRequestOperation *downloadRequest = [[AFHTTPRequestOperation alloc] initWithRequest:request];
[downloadRequest setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
NSData *data = [[NSData alloc] initWithData:responseObject];
[data writeToFile:video2Save.localFilePath atomically:YES];
video2Save.downloadComplete = YES;
[YEPersistentModelHelper saveData:_downloadVideos ToDiskWithIdentifier:persistentIdDownloadedVideos];
NSLog(#"file downloading complete : %#", video2Save.localFilePath);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(#"file downloading error : %#", [error localizedDescription]);
}];
[downloadRequest start];*/
with the following:
NSURLSessionDownloadTask *downloadTask = [_sessionManager downloadTaskWithRequest:request progress:&progress destination:^NSURL *(NSURL *targetPath, NSURLResponse *response) {
NSURL *documentsDirectoryURL = [[NSFileManager defaultManager] URLForDirectory:NSDocumentDirectory inDomain:NSUserDomainMask appropriateForURL:nil create:NO error:nil];
return [documentsDirectoryURL URLByAppendingPathComponent:[NSString stringWithFormat:#"%#.mp4",video2Save.videoVersionId]];
} completionHandler:^(NSURLResponse *response, NSURL *filePath, NSError *error) {
NSLog(#"File downloaded to: %#", filePath);
video2Save.localFilePath = [[filePath filePathURL] absoluteString];
video2Save.downloadComplete = YES;
[YEPersistentModelHelper saveData:_downloadVideos ToDiskWithIdentifier:persistentIdDownloadedVideos];
NSFileManager *fileManager = [NSFileManager defaultManager];
NSError *err = nil;
NSDictionary *att = [fileManager attributesOfItemAtPath:video2Save.localFilePath error:&err];
NSLog(#"NSDictionary: %#", att);
}];
[downloadTask resume];
And it seems to work fine. The complete-block is executed & the file exists at the traced target.
The problem is, that I am no longer available to play the video! I use the MPMoviePlayerController which throws this useful error:
_itemFailedToPlayToEnd: { kind = 1; new = 2; old = 0; }
The only difference seems to be the file-permissions. The first one adds a "staff"-group & everyone is allowed to read while the second only grants access for "me". But even if I change it in the finder I am not able to play it...
Does anyone has an idea!?

to save location file use path no absoluteString
video2Save.localFilePath = [[filePath filePathURL] absoluteString];
don't call absoluteString even to play.. just use the path
like this for example to call the video
NSURL *FilePathURL = [NSURL fileURLWithPath:[docDir stringByAppendingPathComponent:fileToCheck]];
[[myvideoCalss :[FilePathURL path]]

Related

RestKit and Collapsible Menu, synchronize with Core Data

I'm using RestKit and RRNCollapsableTable. The problem is, when I load view for the first time, RestKit is downloading data from JSON. That delay causes menu to not load. What I'm trying to do is to make CollapsableTable wait for data.
[self requestData:^(BOOL success) {
if (success) {
_menu = [self buildMenu];
[self model];
}
}];
- (void)requestData:(void (^)(BOOL success))completionBlock {
NSFetchRequest *fetchRequest = [NSFetchRequest fetchRequestWithEntityName:#"Messages"];
NSSortDescriptor *byId = [NSSortDescriptor sortDescriptorWithKey:#"customNewsId" ascending:YES];
fetchRequest.sortDescriptors = #[byId];
NSError *error = nil;
// Setup fetched results
self.fetchedResultsController = [[NSFetchedResultsController alloc] initWithFetchRequest:fetchRequest
managedObjectContext:[RKManagedObjectStore defaultStore].mainQueueManagedObjectContext
sectionNameKeyPath:#"customNewsId"
cacheName:nil];
//[self.fetchedResultsController setDelegate:self];
BOOL fetchSuccessful = [self.fetchedResultsController performFetch:&error];
if (!fetchSuccessful) {
abort();
}
[[RKObjectManager sharedManager] getObjectsAtPath:#"api/json/get/bZmroLaBCG" parameters:nil success:^(RKObjectRequestOperation *operation, RKMappingResult *mappingResult) {
RKLogInfo(#"Load complete: Table should refresh...");
//[[NSUserDefaults standardUserDefaults] setObject:[NSDate date] forKey:#"LastUpdatedAt"];
//[[NSUserDefaults standardUserDefaults] synchronize];
NSError *error = nil;
if ([[RKManagedObjectStore defaultStore].mainQueueManagedObjectContext hasChanges] && ![[RKManagedObjectStore defaultStore].mainQueueManagedObjectContext saveToPersistentStore:&error]) {
// Replace this implementation with code to handle the error appropriately.
// abort() causes the application to generate a crash log and terminate. You should not use this function in a shipping application, although it may be useful during development.
NSLog(#"Unresolved error %#, %#", error, [error userInfo]);
abort();
}
completionBlock(YES);
} failure:^(RKObjectRequestOperation *operation, NSError *error) {
RKLogError(#"Load failed with error: %#", error);
completionBlock(NO);
}];
completionBlock(YES);
}
Then BuildMenu is just iterating over fetched objects and put them in section.
-(NSArray *)buildMenu {
__block NSMutableArray *collector = [NSMutableArray new];
NSInteger sections = [self.fetchedResultsController.sections count];
for (NSInteger i = 0; i < sections; i++) {
Messages *message = [_fetchedResultsController objectAtIndexPath:[NSIndexPath indexPathForRow:0 inSection:i]];
MenuSection *section = [MenuSection new];
section.items = #[message.message,message.pushNotificationMessage];
section.title = message.title;
NSLog(#"section.title - %#",section.title);
[collector addObject:section];
}
return [collector copy];
}
Method model is responsible for DataSource for CollapsableTable.
-(NSArray *)model {
return _menu;
}
Thanks in advance for any help.
Greetings.

Automatic lightweight migration works for local storage but iCloud storage "loses" all legacy data

I'm tearing my hair out with this one.
I've got an App on iTunes which I added iCloud support to end of last year (Oct '13) on iOS7.0
This week I decided to write a new functional for the App which requires a new entity in the xcdatamodel. A very simple change/addition. Should have no impact on the current data set.
I create a new v2 xcdatamodel and set it to Current Model version, compile and run and it works fine if I've got iCloud switch off on my iPad. I see previous saved data.
Run it again with iCloud switch on and I get a blank table with no data.
No error messages, nothing.
Hoping someone can throw some light on what I've done wrong here:
- (NSManagedObjectModel *)managedObjectModel {
if (__managedObjectModel != nil) {
return __managedObjectModel;
}
NSURL *modelURL = [[NSBundle mainBundle] URLForResource:#"UserData" withExtension:#"momd"];
__managedObjectModel = [[NSManagedObjectModel alloc] initWithContentsOfURL:modelURL];
return __managedObjectModel;
}
- (NSPersistentStoreCoordinator *)persistentStoreCoordinator {
NSError *error = nil;
BOOL success = NO;
if((__persistentStoreCoordinator != nil)) {
return __persistentStoreCoordinator;
}
__persistentStoreCoordinator = [[NSPersistentStoreCoordinator alloc] initWithManagedObjectModel: [self managedObjectModel]];
NSPersistentStoreCoordinator *psc = __persistentStoreCoordinator;
NSString *iCloudEnabledAppID = #"C3FUPX46ZG~com~software~App";
NSString *dataFileName = #"UserData.sqlite";
NSString *iCloudDataDirectoryName = #"CoreData.nosync";
NSString *iCloudLogsDirectoryName = #"CoreDataLogs";
NSFileManager *fileManager = [NSFileManager defaultManager];
NSURL *localStore = [[self applicationDocumentsDirectory] URLByAppendingPathComponent:dataFileName];
NSURL *iCloud = [fileManager URLForUbiquityContainerIdentifier:nil];
if (iCloud && ([UserDefaults getIsiCloudOn])) {
// This iCloud storage fails to migrate.
NSURL *iCloudLogsPath = [NSURL fileURLWithPath:[[iCloud path] stringByAppendingPathComponent:iCloudLogsDirectoryName]];
if([fileManager fileExistsAtPath:[[iCloud path] stringByAppendingPathComponent:iCloudDataDirectoryName]] == NO) {
NSError *fileSystemError;
[fileManager createDirectoryAtPath:[[iCloud path] stringByAppendingPathComponent:iCloudDataDirectoryName]
withIntermediateDirectories:YES
attributes:nil
error:&fileSystemError];
if(fileSystemError != nil) {
NSLog(#"Error creating database directory %#", fileSystemError);
}
}
NSString *iCloudData = [[[iCloud path]
stringByAppendingPathComponent:iCloudDataDirectoryName]
stringByAppendingPathComponent:dataFileName];
NSDictionary *options = #{NSMigratePersistentStoresAutomaticallyOption : #YES,
NSInferMappingModelAutomaticallyOption : #YES,
NSPersistentStoreUbiquitousContentNameKey : iCloudEnabledAppID,
NSPersistentStoreUbiquitousContentURLKey : iCloudLogsPath
};
success = [psc addPersistentStoreWithType:NSSQLiteStoreType
configuration:nil
URL:[NSURL fileURLWithPath:iCloudData]
options:options
error:&error];
if (!success) {
NSLog(#"Unresolved error %#, %#", error, [error userInfo]);
}
} else {
// This local storage migrates automatically just fine.
NSDictionary *options = #{NSMigratePersistentStoresAutomaticallyOption : #YES,
NSInferMappingModelAutomaticallyOption : #YES
};
success = [psc addPersistentStoreWithType:NSSQLiteStoreType
configuration:nil
URL:localStore
options:options
error:&error];
if (!success) {
NSLog(#"Unresolved error %#, %#", error, [error userInfo]);
}
}
dispatch_async(dispatch_get_main_queue(), ^{
[[NSNotificationCenter defaultCenter] postNotificationName:kCoreDataChangeNotification object:self userInfo:nil];
});
return __persistentStoreCoordinator;
}
UPDATE: Switched on core data debugging & iCloud debugging/logging.
Migration works for both local & iCloud. Logs are the same, ending with:
CoreData: annotation: (migration) inferring a mapping model between data models with...
CoreData: annotation: (migration) in-place migration completed succeessfully in 0.03 seconds
-PFUbiquitySwitchboardEntryMetadata setUseLocalStorage:: CoreData: Ubiquity: mobile~F9AC6EB1
Using local storage: 1
With iCloud storage & debugging on it seems to cause a delay and I briefly see my saved data for about 10seconds when it then disappears.
Just before it disappears the debugs spit out:
CoreData: annotation: (migration) inferring a mapping model between data models with...
Using local storage: 0
The iCloud logs are enormous which is why I'm not posting them here. From what I can see I have over 400 log files and iCloud seems to be doing some sort of syncing. If I leave the App and iPad open and on for a few hours I still see an empty data set. So it's not a case of waiting for a sync catch up. I'm still at a loss even with the debugs on....

What is the best way to remove logs file Core Data creates, when removing a UIManagedDocument from iCloud?

I would have thought NSFileManagers method of removeItemAtURL:error: would remove the Core Data log files created when using UIManagedDocuments with iCloud.
What is the best way to make sure all of these log files are removed?
I have used...
- (void)deleteRemnantsOfOldDatabaseDocumentAndItsTransactionLogsWithCompletionHandler:(completion_success_t)completionBlock
{
__weak CloudController *weakSelf = self;
NSURL *databaseStoreFolder = self.iCloudDatabaseStoreFolderURL;
NSURL *transactionLogFolder = self.transactionLogFilesFolderURL;
[self deleteFileAtURL:databaseStoreFolder withCompletionBlock:^(BOOL docSuccess) {
[weakSelf deleteFileAtURL:transactionLogFolder withCompletionBlock:^(BOOL logSuccess) {
completionBlock(docSuccess && logSuccess);
}];
}];
}
In conjunction with...
- (void)deleteFileAtURL:(NSURL *)fileURL withCompletionBlock:(completion_success_t)completionBlock
{
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
NSFileCoordinator *fileCoordinator = [[NSFileCoordinator alloc] initWithFilePresenter:nil];
NSError *coordinatorError = nil;
__block BOOL success = NO;
[fileCoordinator coordinateWritingItemAtURL:fileURL
options:NSFileCoordinatorWritingForDeleting
error:&coordinatorError
byAccessor:^(NSURL *writingURL) {
NSFileManager *fileManager = [[NSFileManager alloc] init];
NSError *removalError = nil;
if ([fileManager fileExistsAtPath:[writingURL path]]) {
if (![fileManager removeItemAtURL:writingURL error:&removalError]) {
NSLog(#"deleteFileAtURL: removal error: %#", removalError);
} else {
success = YES;
}
}
}];
if (coordinatorError) {
NSLog(#"deleteFileAtURL: coordinator error: %#", coordinatorError);
}
completionBlock(success);
});
}
Note: this was used for a single document toolbox style app, and was intended more for clearing out the iCloud container before creating a brand new document, in an 'apparently' empty iCloud store for the first time. But I'm sure it can be adapted without too much work.
Oops, the above won't make sense/work without:
typedef void (^completion_success_t)(BOOL success);
You can debug the contents of your iCloud container and verify things have been removed by using a method like (which to be honest I've probably lifted from somewhere else and modified):
- (void)logDirectoryHierarchyContentsForURL:(NSURL *)url
{
NSFileManager *fileManager = [NSFileManager defaultManager];
NSDirectoryEnumerator *directoryEnumerator = [fileManager enumeratorAtURL:url
includingPropertiesForKeys:#[NSURLNameKey, NSURLContentModificationDateKey]
options:NSDirectoryEnumerationSkipsHiddenFiles
errorHandler:nil];
NSMutableArray *results = [NSMutableArray array];
for (NSURL *itemURL in directoryEnumerator) {
NSString *fileName;
[itemURL getResourceValue:&fileName forKey:NSURLNameKey error:NULL];
NSDate *modificationDate;
[itemURL getResourceValue:&modificationDate forKey:NSURLContentModificationDateKey error:NULL];
[results addObject:[NSString stringWithFormat:#"%# (%#)", itemURL, modificationDate]];
}
NSLog(#"Directory contents: %#", results);
}
And it's also worth logging onto developer.icloud.com and examining what is actually in the iCloud store. There is sometimes a difference between what is retained in the device ubiquity container, and what is actually in the iCloud server folder structure. Between all of these you can get quite a good idea of what's going on.

Strange Core Data Error During Migration

I'm absolutely pulling my hair out with Core Data after yet another bizarre error that I can't seem to solve.
This will be the fourth version of the Data model, the previous migrations have worked (albeit with some headaches).
All I'm trying to do is add a property of String type to an 'Engines' entity. I create a new version of the model (version 4) based on the current version (v3). I select the newly created version 4 as the 'Current model' and add the string property to the Engines entity. I then create a new mapping model, using v3 as the source and v4 as the target. I delete the previous Engines NSManagedObject subclass, and create a new one using the new, modified Engines entity, checking to make sure that the new String property is in the header file. I clean build the app and run it, and boom! I get this error, about 18 times:
{NSDetailedErrors=(
"Error Domain=NSCocoaErrorDomain Code=1570 \"The operation couldn\U2019t be completed. (Cocoa error 1570.)\" UserInfo=0x6015820 {NSValidationErrorObject= (entity: BodySet; id: 0x60ba670 ; data: ), NSValidationErrorKey=availableCar, NSLocalizedDescription=The operation couldn\U2019t be completed. (Cocoa error 1570.)}",
BodySet is another entity in the model, but I haven't touched it during this migration, so why is it causing all these errors?
I'm not sure if this is a help or not, but here's my Core Data code:
- (NSManagedObjectContext *) managedObjectContext {
if (managedObjectContext != nil) {
return managedObjectContext;
}
NSPersistentStoreCoordinator *coordinator = [self persistentStoreCoordinator];
if (coordinator != nil) {
managedObjectContext = [[NSManagedObjectContext alloc] init];
[managedObjectContext setPersistentStoreCoordinator: coordinator];
}
return managedObjectContext;
}
- (NSManagedObjectModel *)managedObjectModel {
if (managedObjectModel != nil) {
return managedObjectModel;
}
NSString *path = [[NSBundle mainBundle] pathForResource:#"CoreDataTest" ofType:#"momd"];
NSURL *momURL = [NSURL fileURLWithPath:path];
managedObjectModel = [[NSManagedObjectModel alloc] initWithContentsOfURL:momURL];
return managedObjectModel;
}
- (NSPersistentStoreCoordinator *)persistentStoreCoordinator {
if (persistentStoreCoordinator != nil) {
return persistentStoreCoordinator;
}
stringByAppendingPathComponent:#"<Project Name>.sqlite"]];
//get the DB from the Documents directory:
NSURL *storeUrl = [NSURL fileURLWithPath: [[self applicationDocumentsDirectory]
stringByAppendingPathComponent: #"<Project Name>.sqlite"]];
NSLog(#"Loading DB at path: %#", [storeUrl path]);
NSError *error = nil;
persistentStoreCoordinator = [[NSPersistentStoreCoordinator alloc]
initWithManagedObjectModel:[self managedObjectModel]];
NSDictionary *options = [NSDictionary dictionaryWithObjectsAndKeys:
[NSNumber numberWithBool:YES], NSMigratePersistentStoresAutomaticallyOption,
[NSNumber numberWithBool:YES], NSInferMappingModelAutomaticallyOption, nil];
if(![persistentStoreCoordinator addPersistentStoreWithType:NSSQLiteStoreType
configuration:nil URL:storeUrl options:options error:&error]) {
/*Error for store creation should be handled in here*/
NSLog(#"Something went wrong....%#", [error description]);
}
return persistentStoreCoordinator;
}
Any help with this is very much appreciated.
i have fixed it ,maybe you can change "availableCar“ item to optional

Find assets in library - add to a AVMutableComposition - export = crash

I've been struggling with adding assets from the iPhone Photo Library to a AVMutableComposition and then export them. Here is what I got:
Finding the assets: (here I grab the AVURLAsset)
-(void) findAssets {
ALAssetsLibrary *library = [[ALAssetsLibrary alloc] init];
// Enumerate just the photos and videos group by using ALAssetsGroupSavedPhotos.
[library enumerateGroupsWithTypes:ALAssetsGroupSavedPhotos usingBlock:^(ALAssetsGroup *group, BOOL *stop) {
// Within the group enumeration block, filter to enumerate just videos.
[group setAssetsFilter:[ALAssetsFilter allVideos]];
[group enumerateAssetsUsingBlock:^(ALAsset *alAsset, NSUInteger index, BOOL *innerStop){
// The end of the enumeration is signaled by asset == nil.
if (alAsset) {
ALAssetRepresentation *representation = [alAsset defaultRepresentation];
NSURL *url = [representation url];
AVURLAsset *avAsset = [AVURLAsset URLAssetWithURL:url options:nil];
// Do something interesting with the AV asset.
[thumbs addObject:alAsset];
[assets addObject:avAsset];
}else if(alAsset == nil){
[self createScroll];
}
}];
}
failureBlock: ^(NSError *error) {
// Typically you should handle an error more gracefully than this.
NSLog(#"No groups");
}];
[library release];
}
Here I add a asset to my composition (I use the first object in the array for testing only.
-(void) addToCompositionWithAsset:(AVURLAsset*)_asset{
NSError *editError = nil;
composition = [AVMutableComposition composition];
AVURLAsset* sourceAsset = [assets objectAtIndex:0];
Float64 inSeconds = 1.0;
Float64 outSeconds = 2.0;
// calculate time
CMTime inTime = CMTimeMakeWithSeconds(inSeconds, 600);
CMTime outTime = CMTimeMakeWithSeconds(outSeconds, 600);
CMTime duration = CMTimeSubtract(outTime, inTime);
CMTimeRange editRange = CMTimeRangeMake(inTime, duration);
[composition insertTimeRange:editRange ofAsset:sourceAsset atTime:composition.duration error:&editError];
if (!editError) {
CMTimeGetSeconds (composition.duration);
}
}
And finally I export the comp and here it crashes
-(void)exportComposition {
AVAssetExportSession *exportSession = [[AVAssetExportSession alloc] initWithAsset:composition presetName:AVAssetExportPresetPassthrough];
NSLog (#"can export: %#", exportSession.supportedFileTypes);
NSArray *dirs = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectoryPath = [dirs objectAtIndex:0];
NSString *exportPath = [documentsDirectoryPath stringByAppendingPathComponent:EXPORT_NAME];
[[NSFileManager defaultManager] removeItemAtPath:exportPath error:nil];
NSURL *exportURL = [NSURL fileURLWithPath:exportPath];
exportSession.outputURL = exportURL;
exportSession.outputFileType = AVFileTypeQuickTimeMovie;//#"com.apple.quicktime-movie";
[exportSession exportAsynchronouslyWithCompletionHandler:^{
NSLog (#"i is in your block, exportin. status is %d",
exportSession.status);
switch (exportSession.status) {
case AVAssetExportSessionStatusFailed:
case AVAssetExportSessionStatusCompleted: {
[self performSelectorOnMainThread:#selector (exportDone:)
withObject:nil
waitUntilDone:NO];
break;
}
};
}];
}
Does anyone have an idea of what it might be? It crashes on
AVAssetExportSession *exportSession = [[AVAssetExportSession alloc] initWithAsset:composition presetName:AVAssetExportPresetPassthrough];
And I tried different presets and outputFileTypes.
Thanks
* SOLVED *
I have to answer my own question now when I have solved. It's amazing that I've been struggling with this for a whole day and then I fix it right after posting a question :)
I changed and moved:
composition = [AVMutableComposition
composition];
to:
composition = [[AVMutableComposition
alloc] init];
I think I was too tired when I was working on this yesterday. Thanks guys!

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