#import "AppDelegate.h"
#import "Person.h"
@implementation AppDelegate
@synthesize managedObjectContext = _managedObjectContext;
@synthesize managedObjectModel = _managedObjectModel;
@synthesize persistentStoreCoordinator = _persistentStoreCoordinator;
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
[self createNewPersonWithFirstName:@"Anthony" lastName:@"Robbins" age:51];
[self createNewPersonWithFirstName:@"Richard" lastName:@"Branson" age:61];
NSFetchRequest *fetchRequest = [[NSFetchRequest alloc]initWithEntityName:@"Person"];
NSSortDescriptor *ageSort = [[NSSortDescriptor alloc] initWithKey:@"age" ascending:YES];
NSSortDescriptor *firstNameSort = [[NSSortDescriptor alloc] initWithKey:@"firstName" ascending:YES];
fetchRequest.sortDescriptors = @[ageSort, firstNameSort];
NSError *requstError = nil;
NSArray *persons = [self.managedObjectContext executeFetchRequest:fetchRequest error:&requstError];
for (Person *person in persons) {
NSLog(@"First Name = %@", person.firstName);
NSLog(@"Last Name= %@", person.lastName);
NSLog(@"Age = %lu", (unsigned long)[person.age unsignedCharValue]);
}
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
// Override point for customization after application launch.
self.window.backgroundColor = [UIColor whiteColor];
[self.window makeKeyAndVisible];
return YES;
}
-(BOOL) deletePerson:(NSArray*)praramPersons
{
BOOL isDelete = NO;
if ([praramPersons count] > 0) {
Person *lastPerson = [praramPersons lastObject];
[self.managedObjectContext deleteObject:lastPerson];
NSError *savingError = nil;
if ([self.managedObjectContext save:&savingError]) {
NSLog(@"Successfully deleted the last Person in the array");
} else {
NSLog(@"Failed to delete the last Person in the array");
}
} else {
NSLog(@"Could not find any Person entities in the context");
}
return isDelete;
}
-(BOOL) createPersonSuccess:(NSArray*)paramPersons
{
BOOL createResult = NO;
if ([paramPersons count] > 0) {
createResult = YES;
NSUInteger counter = 1;
for (Person *thisPerson in paramPersons) {
NSLog(@"Person %lu First Name = %@", (unsigned long)counter, thisPerson.firstName);
NSLog(@"Person %lu lastName = %@", (unsigned long)counter, thisPerson.lastName);
NSLog(@"Person %lu Age = %ld", (unsigned long)counter, (unsigned long)[thisPerson.age unsignedIntegerValue]);
counter ++;
}
} else {
NSLog(@"Could not find any Person entities in the context");
}
return createResult;
}
-(void)createNewPerson
{
Person *newPerson = [NSEntityDescription insertNewObjectForEntityForName:@"Person" inManagedObjectContext:self.managedObjectContext];
if (newPerson != nil) {
newPerson.firstName = @"Anthony";
newPerson.lastName = @"Robbins";
newPerson.age = @51;
NSError *savingError = nil;
if ([self.managedObjectContext save:&savingError]) {
NSLog(@"Successfully saved the context.");
} else {
NSLog(@"Failed to save the context. Error = %@", savingError);
}
} else {
NSLog(@"Failed to create the new Person.");
}
}
-(BOOL) createNewPersonWithFirstName:(NSString*)paramFirstName
lastName:(NSString*)paramLastName
age:(NSUInteger)paramAge
{
BOOL result = NO;
if ([paramFirstName length] == 0 | [paramLastName length] == 0) {
NSLog(@"First and Last names are mandatory");
return NO;
}
Person *newPerson = [NSEntityDescription insertNewObjectForEntityForName:@"Person" inManagedObjectContext:self.managedObjectContext];
if (newPerson == nil) {
NSLog(@"Failed to create the new person.");
return NO;
}
newPerson.firstName = paramFirstName;
newPerson.lastName = paramLastName;
newPerson.age = @(paramAge);
NSError *savingError = nil;
if ([self.managedObjectContext save:&savingError]) {
return YES;
} else {
NSLog(@"Failed to save the new person.Error = %@", savingError);
}
return result;
}
NSlog
2014-09-13 00:20:18.452 CoreDataDemo[683:60b] First Name = Anthony 2014-09-13 00:20:18.453 CoreDataDemo[683:60b] Last Name= Robbins 2014-09-13 00:20:18.454 CoreDataDemo[683:60b] Age = 51 2014-09-13 00:20:18.454 CoreDataDemo[683:60b] First Name = Anthony 2014-09-13 00:20:18.454 CoreDataDemo[683:60b] Last Name= Robbins 2014-09-13 00:20:18.455 CoreDataDemo[683:60b] Age = 51 2014-09-13 00:20:18.455 CoreDataDemo[683:60b] First Name = Anthony 2014-09-13 00:20:18.455 CoreDataDemo[683:60b] Last Name= Robbins 2014-09-13 00:20:18.456 CoreDataDemo[683:60b] Age = 51 2014-09-13 00:20:18.456 CoreDataDemo[683:60b] First Name = Anthony 2014-09-13 00:20:18.456 CoreDataDemo[683:60b] Last Name= Robbins 2014-09-13 00:20:18.457 CoreDataDemo[683:60b] Age = 51 2014-09-13 00:20:18.457 CoreDataDemo[683:60b] First Name = Anthony 2014-09-13 00:20:18.457 CoreDataDemo[683:60b] Last Name= Robbins 2014-09-13 00:20:18.458 CoreDataDemo[683:60b] Age = 51 2014-09-13 00:20:18.458 CoreDataDemo[683:60b] First Name = Anthony 2014-09-13 00:20:18.458 CoreDataDemo[683:60b] Last Name= Robbins 2014-09-13 00:20:18.459 CoreDataDemo[683:60b] Age = 51 2014-09-13 00:20:18.459 CoreDataDemo[683:60b] First Name = Anthony 2014-09-13 00:20:18.485 CoreDataDemo[683:60b] Last Name= Robbins 2014-09-13 00:20:18.486 CoreDataDemo[683:60b] Age = 51 2014-09-13 00:20:18.487 CoreDataDemo[683:60b] First Name = Richard 2014-09-13 00:20:18.487 CoreDataDemo[683:60b] Last Name= Branson 2014-09-13 00:20:18.487 CoreDataDemo[683:60b] Age = 61 2014-09-13 00:20:18.488 CoreDataDemo[683:60b] First Name = Richard 2014-09-13 00:20:18.488 CoreDataDemo[683:60b] Last Name= Branson 2014-09-13 00:20:18.489 CoreDataDemo[683:60b] Age = 61 2014-09-13 00:20:18.489 CoreDataDemo[683:60b] First Name = Richard 2014-09-13 00:20:18.489 CoreDataDemo[683:60b] Last Name= Branson 2014-09-13 00:20:18.490 CoreDataDemo[683:60b] Age = 61 2014-09-13 00:20:18.490 CoreDataDemo[683:60b] First Name = Richard 2014-09-13 00:20:18.491 CoreDataDemo[683:60b] Last Name= Branson 2014-09-13 00:20:18.491 CoreDataDemo[683:60b] Age = 61 2014-09-13 00:20:18.495 CoreDataDemo[683:60b] Application windows are expected to have a root view controller at the end of application launch
时间： 2024-10-14 13:13:29