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Basic database access is working

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This commit is contained in:
Cameron Gutman
2015-12-02 00:25:38 -08:00
parent fe616d86c5
commit 3076e29335
13 changed files with 274 additions and 118 deletions
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183
Limelight/Database/DataManager.m
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@@ -8,45 +8,87 @@
#import "DataManager.h"
#import "TemporaryApp.h"
#import "TemporarySettings.h"
#import "Settings.h"
@implementation DataManager
+ (NSObject *)databaseLock {
static NSObject *lock = nil;
if (lock == nil) {
lock = [[NSObject alloc] init];
}
return lock;
@implementation DataManager {
NSManagedObjectContext *_managedObjectContext;
AppDelegate *_appDelegate;
}
- (id) init {
self = [super init];
self.appDelegate = [[UIApplication sharedApplication] delegate];
_appDelegate = [[UIApplication sharedApplication] delegate];
_managedObjectContext = [[NSManagedObjectContext alloc] initWithConcurrencyType:NSPrivateQueueConcurrencyType];
[_managedObjectContext setPersistentStoreCoordinator:_appDelegate.persistentStoreCoordinator];
return self;
}
- (void) saveSettingsWithBitrate:(NSInteger)bitrate framerate:(NSInteger)framerate height:(NSInteger)height width:(NSInteger)width onscreenControls:(NSInteger)onscreenControls {
Settings* settingsToSave = [self retrieveSettings];
settingsToSave.framerate = [NSNumber numberWithInteger:framerate];
// Bitrate is persisted in kbps
settingsToSave.bitrate = [NSNumber numberWithInteger:bitrate];
settingsToSave.height = [NSNumber numberWithInteger:height];
settingsToSave.width = [NSNumber numberWithInteger:width];
settingsToSave.onscreenControls = [NSNumber numberWithInteger:onscreenControls];
- (void) updateUniqueId:(NSString*)uniqueId {
[_managedObjectContext performBlockAndWait:^{
[self retrieveSettings].uniqueId = uniqueId;
[self saveData];
}];
}
NSError* error;
if (![[self.appDelegate managedObjectContext] save:&error]) {
Log(LOG_E, @"Unable to save settings to database: %@", error);
}
[self.appDelegate saveContext];
- (NSString*) getUniqueId {
__block NSString *uid;
[_managedObjectContext performBlockAndWait:^{
uid = [self retrieveSettings].uniqueId;
}];
return uid;
}
- (void) saveSettingsWithBitrate:(NSInteger)bitrate framerate:(NSInteger)framerate height:(NSInteger)height width:(NSInteger)width onscreenControls:(NSInteger)onscreenControls {
[_managedObjectContext performBlockAndWait:^{
Settings* settingsToSave = [self retrieveSettings];
settingsToSave.framerate = [NSNumber numberWithInteger:framerate];
// Bitrate is persisted in kbps
settingsToSave.bitrate = [NSNumber numberWithInteger:bitrate];
settingsToSave.height = [NSNumber numberWithInteger:height];
settingsToSave.width = [NSNumber numberWithInteger:width];
settingsToSave.onscreenControls = [NSNumber numberWithInteger:onscreenControls];
[self saveData];
}];
}
- (void) updateHost:(TemporaryHost *)host {
[_managedObjectContext performBlockAndWait:^{
// Add a new persistent managed object if one doesn't exist
if (host.parent == nil) {
NSEntityDescription* entity = [NSEntityDescription entityForName:@"Host" inManagedObjectContext:_managedObjectContext];
host.parent = [[Host alloc] initWithEntity:entity insertIntoManagedObjectContext:_managedObjectContext];
}
// Push changes from the temp host to the persistent one
[host propagateChangesToParent];
[self saveData];
}];
}
- (TemporarySettings*) getSettings {
__block TemporarySettings *tempSettings;
[_managedObjectContext performBlockAndWait:^{
tempSettings = [[TemporarySettings alloc] initFromSettings:[self retrieveSettings]];
}];
return tempSettings;
}
- (Settings*) retrieveSettings {
NSArray* fetchedRecords = [self fetchRecords:@"Settings"];
if (fetchedRecords.count == 0) {
// create a new settings object with the default values
NSEntityDescription* entity = [NSEntityDescription entityForName:@"Settings" inManagedObjectContext:[self.appDelegate managedObjectContext]];
Settings* settings = [[Settings alloc] initWithEntity:entity insertIntoManagedObjectContext:[self.appDelegate managedObjectContext]];
NSEntityDescription* entity = [NSEntityDescription entityForName:@"Settings" inManagedObjectContext:_managedObjectContext];
Settings* settings = [[Settings alloc] initWithEntity:entity insertIntoManagedObjectContext:_managedObjectContext];
return settings;
} else {
@@ -55,74 +97,51 @@
}
}
- (Host*) createHost {
NSEntityDescription* entity = [NSEntityDescription entityForName:@"Host" inManagedObjectContext:[self.appDelegate managedObjectContext]];
return [[Host alloc] initWithEntity:entity insertIntoManagedObjectContext:[self.appDelegate managedObjectContext]];
}
- (void) removeHost:(Host*)host {
[[self.appDelegate managedObjectContext] deleteObject:host];
[self saveData];
- (void) removeHost:(TemporaryHost*)host {
if (host.parent == nil) {
// Not inserted into the DB
return;
}
[_managedObjectContext performBlockAndWait:^{
[_managedObjectContext deleteObject:host.parent];
[self saveData];
}];
}
- (void) saveData {
@synchronized([DataManager databaseLock]) {
NSError* error;
if (![[self.appDelegate managedObjectContext] save:&error]) {
Log(LOG_E, @"Unable to save hosts to database: %@", error);
NSError* error;
if (![_managedObjectContext save:&error]) {
Log(LOG_E, @"Unable to save hosts to database: %@", error);
}
[_appDelegate saveContext];
}
- (NSArray*) getHosts {
__block NSMutableArray *tempHosts = [[NSMutableArray alloc] init];
[_managedObjectContext performBlockAndWait:^{
NSArray *hosts = [self fetchRecords:@"Host"];
for (Host* host in hosts) {
[tempHosts addObject:[[TemporaryHost alloc] initFromHost:host]];
}
[self.appDelegate saveContext];
}
}
- (NSArray*) retrieveHosts {
return [self fetchRecords:@"Host"];
}
- (App*) addAppFromTemporaryApp:(TemporaryApp*)tempApp {
}];
App* managedApp;
@synchronized([DataManager databaseLock]) {
NSEntityDescription* entity = [NSEntityDescription entityForName:@"App" inManagedObjectContext:[self.appDelegate managedObjectContext]];
managedApp = [[App alloc] initWithEntity:entity insertIntoManagedObjectContext:[self.appDelegate managedObjectContext]];
assert(tempApp.host != nil);
managedApp.id = tempApp.id;
managedApp.image = tempApp.image;
managedApp.name = tempApp.name;
managedApp.isRunning = tempApp.isRunning;
managedApp.host = tempApp.host;
[managedApp.host addAppListObject:managedApp];
}
return managedApp;
}
- (void) removeAppFromHost:(App*)app {
@synchronized([DataManager databaseLock]) {
assert(app.host != nil);
[app.host removeAppListObject:app];
[[self.appDelegate managedObjectContext] deleteObject:app];
}
return tempHosts;
}
- (NSArray*) fetchRecords:(NSString*)entityName {
NSArray* fetchedRecords;
@synchronized([DataManager databaseLock]) {
NSFetchRequest* fetchRequest = [[NSFetchRequest alloc] init];
NSEntityDescription* entity = [NSEntityDescription entityForName:entityName inManagedObjectContext:[self.appDelegate managedObjectContext]];
[fetchRequest setEntity:entity];
[fetchRequest setAffectedStores:[NSArray arrayWithObjects:[[self.appDelegate persistentStoreCoordinator] persistentStoreForURL:[self.appDelegate getStoreURL]], nil]];
NSError* error;
fetchedRecords = [[self.appDelegate managedObjectContext] executeFetchRequest:fetchRequest error:&error];
//TODO: handle errors
}
NSFetchRequest* fetchRequest = [[NSFetchRequest alloc] init];
NSEntityDescription* entity = [NSEntityDescription entityForName:entityName inManagedObjectContext:_managedObjectContext];
[fetchRequest setEntity:entity];
NSError* error;
fetchedRecords = [_managedObjectContext executeFetchRequest:fetchRequest error:&error];
//TODO: handle errors
return fetchedRecords;
}