DataModel.h
#import "DataModel.h"
#import <CoreData/CoreData.h>
#import "SettingsEntity.h"
#import "Constants.h"
@implementation DataModel
NSManagedObjectContext *managedObjectContextEntity;
NSManagedObjectContext *managedObjectContextMessage;
NSManagedObjectModel *managedObjectModel;
NSPersistentStoreCoordinator *persistentStoreCoordinator;
NSEntityDescription *theSettingsEntity;
NSEntityDescription *theMessagesEntity;
-(id) init
{
NSURL *modelURL = [[NSBundle mainBundle] URLForResource:@"SOW" withExtension:@"momd"];
managedObjectModel = [[NSManagedObjectModel alloc] initWithContentsOfURL:modelURL];
NSError *error = nil;
NSURL *storeURL = [[[[NSFileManager defaultManager] URLsForDirectory:NSDocumentDirectory inDomains:NSUserDomainMask] lastObject] URLByAppendingPathComponent:[Constants SQLLiteDB]];
persistentStoreCoordinator = [[NSPersistentStoreCoordinator alloc] initWithManagedObjectModel:managedObjectModel];
if (![persistentStoreCoordinator addPersistentStoreWithType:NSSQLiteStoreType configuration:nil URL:storeURL options:nil error:&error]) {
NSLog(@"Unresolved error %@, %@", error, [error userInfo]);
abort();
}
if (persistentStoreCoordinator != nil) {
managedObjectContextEntity = [[NSManagedObjectContext alloc] init];
[managedObjectContextEntity setPersistentStoreCoordinator:persistentStoreCoordinator];
managedObjectContextMessage = [[NSManagedObjectContext alloc] init];
[managedObjectContextMessage setPersistentStoreCoordinator:persistentStoreCoordinator];
}
theSettingsEntity = [NSEntityDescription entityForName:@"SettingsEntity" inManagedObjectContext:managedObjectContextEntity];
theMessagesEntity = [NSEntityDescription entityForName:@"MessageEntity" inManagedObjectContext:managedObjectContextMessage];
return self;
}
-(void) SaveSetting: (SettingsEntity *)setting
{
NSError *error = nil;
if (managedObjectContextEntity != nil) {
if ([managedObjectContextEntity hasChanges] && ![managedObjectContextEntity save:&error]) {
NSLog(@"Unresolved error %@, %@", error, [error userInfo]);
abort();
}
else {
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Confirmation" message:@"Settings were saved successfully." delegate:nil cancelButtonTitle:@"Okay" otherButtonTitles:nil, nil];
[alert show];
}
}
}
-(void) SaveMessage: (MessageEntity *)message
{
NSError *error = nil;
if (managedObjectContextMessage != nil) {
if ([managedObjectContextMessage hasChanges] && ![managedObjectContextMessage save:&error]) {
NSLog(@"Unresolved error %@, %@", error, [error userInfo]);
abort();
}
}
}
-(NSArray *) GetSettingsResult
{
NSManagedObjectContext *context = managedObjectContextEntity;
NSFetchRequest *request = [[NSFetchRequest alloc] init];
[request setEntity:theSettingsEntity];
NSSortDescriptor *sortDescriptor = [[NSSortDescriptor alloc] initWithKey:@"enteredDateTime" ascending:NO];
NSArray *sortDescriptors = [NSArray arrayWithObjects:sortDescriptor, nil];
[request setSortDescriptors:sortDescriptors];
NSArray *results = [context executeFetchRequest:request error:nil];
return results;
}
-(SettingsEntity *) GetSettingsEntity
{
SettingsEntity *settingsEntity = [NSEntityDescription
insertNewObjectForEntityForName:[theSettingsEntity name]
inManagedObjectContext:managedObjectContextEntity];
return settingsEntity;
}
-(NSArray *) GetMessageResult
{
NSFetchRequest *request = [self GetMessageFetchRequest];
NSArray *results = [managedObjectContextMessage executeFetchRequest:request error:nil];
return results;
}
-(NSFetchRequest *) GetMessageFetchRequest
{
NSFetchRequest *request = [[NSFetchRequest alloc] init];
[request setEntity:theMessagesEntity];
NSSortDescriptor *sortDescriptor = [[NSSortDescriptor alloc] initWithKey:@"sentDateTime" ascending:NO];
NSArray *sortDescriptors = [NSArray arrayWithObjects:sortDescriptor, nil];
[request setSortDescriptors:sortDescriptors];
return request;
}
-(NSFetchedResultsController *) GetMessageFetchResultsController
{
NSFetchRequest *fetchRequest = [self GetMessageFetchRequest];
NSFetchedResultsController *aFetchedResultsController = [[NSFetchedResultsController alloc] initWithFetchRequest:fetchRequest managedObjectContext:managedObjectContextMessage sectionNameKeyPath:@"typeMessage" cacheName:nil];
return aFetchedResultsController;
}
-(MessageEntity *) GetMessageEntity
{
MessageEntity *mEntity = [NSEntityDescription
insertNewObjectForEntityForName:[theMessagesEntity name]
inManagedObjectContext:managedObjectContextMessage];
return mEntity;
}
@end
显示出来的 history table view结果是:
可以看见email和call的显示位置对应错误,不知道为什么?请大家帮忙解答。