static int row=0;
static const NSString *kStoryboardName = @"LRCoreDataViewController";
static const NSString *kIdentifier = @"LRCoreDataViewController";
@interface LRCoreDataViewControllerCellInfo : NSObject
@property (nonatomic,strong) NSString *name;
@property (nonatomic,strong) NSString *city;
@property (nonatomic,strong) NSString *state;
@end
@implementation LRCoreDataViewControllerCellInfo
@end
typedef LRCoreDataViewControllerCellInfo CellInfo_t;
@interface LRCoreDataViewController ()<LRAlertViewManagerDelegate,UITableViewDataSource,UITableViewDelegate>
{
NSManagedObjectContext *_context;
}
@property (strong, nonatomic) IBOutlet UITableView *myTableView;
@property (nonatomic,strong) NSMutableArray *cellInfoArray;
@end
@implementation LRCoreDataViewController
@synthesize failedBankInfos;
@synthesize managedObjectContext;
+(instancetype)createViewController:(id)createArgs{
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:(NSString *)kStoryboardName bundle:nil];
LRCoreDataViewController *vc = [storyboard instantiateViewControllerWithIdentifier:(NSString *)kIdentifier];
return vc;
}
- (void)viewDidLoad {
[super viewDidLoad];
self.view.backgroundColor=[UIColor cyanColor];
[self initCoreData];
[self initRightItem];
[self initTableView];
[self setExtraCellLineHidden:self.myTableView];
//[self openDataBase];
self.myDelegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];
}
- (void)openDataBase{
NSManagedObjectModel *model=[NSManagedObjectModel mergedModelFromBundles:nil];
NSPersistentStoreCoordinator *coodinator=[[NSPersistentStoreCoordinator alloc]initWithManagedObjectModel:model];
NSString *path = [NSHomeDirectory() stringByAppendingPathComponent:@"Documents/mydatabase.db"];
NSError *error=nil;
[coodinator addPersistentStoreWithType:NSSQLiteStoreType configuration:nil URL:[NSURL fileURLWithPath:path] options:nil error:&error];
if (error) {
NSLog(@"打开数据库失败");
}else{
NSLog(@"创建数据库成功");
_context=[[NSManagedObjectContext alloc]init];
_context.persistentStoreCoordinator=coodinator;
}
}
- (void)setExtraCellLineHidden: (UITableView *)tableView{
UIView *view =[ [UIView alloc]init];
view.backgroundColor = [UIColor clearColor];
[tableView setTableFooterView:view];
[tableView setTableHeaderView:view];
}
- (void)initTableView{
self.myTableView.delegate=self;
self.myTableView.dataSource=self;
}
- (void)initRightItem{
UIButton *rightBtn = [[UIButton alloc]init];
[rightBtn setFrame:CGRectMake(0, 0, 39, 36)];
[rightBtn setImage:[UIImage imageNamed:@"addData"] forState:UIControlStateNormal];
rightBtn.showsTouchWhenHighlighted = YES;
[rightBtn addTarget:self action:@selector(addData) forControlEvents:UIControlEventTouchUpInside];
UIBarButtonItem *buttonItem = [[UIBarButtonItem alloc] initWithCustomView:rightBtn];
self.navigationItem.rightBarButtonItem = buttonItem;
}
#pragma mark - 向数据库中添加数据，并显示在当前界面
- (void)addData{
LRAlertViewManager *manager=[LRAlertViewManager sharedAlertViewManager];
manager.delegate=self;
[manager showAlertView];
}
- (void)clickButton:(int)tag{
if (tag==99) {
NSError *error;
//创建一个指向数据库的指针。管理对象，上下文。持久性存储模型对象
NSManagedObjectContext *context=[self managedObjectContext];
NSManagedObject *BankInfo=[NSEntityDescription insertNewObjectForEntityForName:@"BankInfo" inManagedObjectContext:context];
[BankInfo setValue:@"姓名" forKey:@"name"];
[BankInfo setValue:@"城市" forKey:@"city"];
[BankInfo setValue:@"状态" forKey:@"sta"];
[BankInfo setValue:[NSNumber numberWithInt:row] forKey:@"row"];
NSManagedObject *bankDetails=[NSEntityDescription insertNewObjectForEntityForName:@"BankDetails" inManagedObjectContext:context];
[bankDetails setValue:[NSDate date] forKey:@"hh"];
[bankDetails setValue:[NSDate date] forKey:@"mm"];
[bankDetails setValue:[NSNumber numberWithInt:12345] forKey:@"zip"];
[bankDetails setValue:BankInfo forKey:@"info"];
[bankDetails setValue:bankDetails forKey:@"details"];
if (![context save:&error]) {
NSLog(@"Whoops, could not save:%@",[error localizedDescription]);
}
NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init];
NSEntityDescription *entity = [NSEntityDescription entityForName:@"FailedBankInfo" inManagedObjectContext:context];
[fetchRequest setEntity:entity];
NSArray *fetchedObjects = [context executeFetchRequest:fetchRequest error:&error];
for (FailedBankInfo *info in fetchedObjects) {
NSLog(@"row: %d", info.row);
FailedBankDetails *details = info.details;
NSLog(@"Zip: %@", details.zip);
}
NSFetchRequest *fetchRequest2 = [[NSFetchRequest alloc] init];
NSEntityDescription *entity2 = [NSEntityDescription entityForName:@"FailedBankInfo" inManagedObjectContext:managedObjectContext];
[fetchRequest2 setEntity:entity2];
NSError *error2;
self.failedBankInfos = [managedObjectContext executeFetchRequest:fetchRequest2 error:&error2];
[self.myTableView reloadData];
row++;
}else if (tag==100){
NSManagedObjectContext *context = [self managedObjectContext];
NSEntityDescription *description = [NSEntityDescription entityForName:@"FailedBankInfo" inManagedObjectContext:context];
NSFetchRequest *request = [[NSFetchRequest alloc] init];
[request setIncludesPropertyValues:NO];
[request setEntity:description];
NSError *error = nil;
NSArray *datas = [context executeFetchRequest:request error:&error];
if (!error && datas && [datas count]){
for (NSManagedObject *obj in datas){
[context deleteObject:obj];
}
if (![context save:&error]){
NSLog(@"error:%@",error);
}
}
NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init];
NSEntityDescription *entity = [NSEntityDescription entityForName:@"FailedBankInfo" inManagedObjectContext:managedObjectContext];
[fetchRequest setEntity:entity];
NSError *error2;
self.failedBankInfos = [managedObjectContext executeFetchRequest:fetchRequest error:&error2];
[self.myTableView reloadData];
}
}
#pragma mark -初始化 NSArray存数据
- (void)initCoreData{
NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init];
NSEntityDescription *entity = [NSEntityDescription entityForName:@"FailedBankInfo" inManagedObjectContext:managedObjectContext];
[fetchRequest setEntity:entity];
NSError *error;
self.failedBankInfos = [managedObjectContext executeFetchRequest:fetchRequest error:&error];
self.title = @"CoreData";
}
#pragma mark - Table view data source
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return failedBankInfos.count;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = @"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (!cell) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier];
}
FailedBankInfo *info = [failedBankInfos objectAtIndex:indexPath.row];
cell.textLabel.text = info.name;
cell.detailTextLabel.text = [NSString stringWithFormat:@"%@, %@",info.city, info.state];
UILabel *deleteLabel=[[UILabel alloc]initWithFrame:CGRectMake([UIScreen mainScreen].bounds.size.width-200, 5, 200, 40)];
deleteLabel.text=@"向左滑动删除CoreData数据";
[cell.contentView addSubview:deleteLabel];
return cell;
}
-(UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath{
return UITableViewCellEditingStyleDelete;
}
-(NSString *)tableView:(UITableView *)tableView titleForDeleteConfirmationButtonForRowAtIndexPath:(NSIndexPath *)indexPath{
return @"删除";
}
-(void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath{
NSManagedObjectContext *context = [self managedObjectContext];
NSEntityDescription *description = [NSEntityDescription entityForName:@"FailedBankInfo" inManagedObjectContext:context];
NSFetchRequest *request = [[NSFetchRequest alloc] init];
[request setIncludesPropertyValues:NO];
[request setEntity:description];
NSError *error = nil;
NSArray *datas = [context executeFetchRequest:request error:&error];
if (!error && datas && [datas count]){
[context deleteObject:datas[indexPath.row]];
if (![context save:&error]){
NSLog(@"error:%@",error);
}
}
NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init];
NSEntityDescription *entity = [NSEntityDescription entityForName:@"FailedBankInfo" inManagedObjectContext:managedObjectContext];
[fetchRequest setEntity:entity];
NSError *error2;
self.failedBankInfos = [managedObjectContext executeFetchRequest:fetchRequest error:&error2];
[self.myTableView deleteRowsAtIndexPaths:[NSMutableArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationAutomatic];
[self.myTableView reloadData];
}