FMDB

//  DBManager.h
//  DB
//
//  Created by qianfeng on 15/7/22.
//  Copyright (c) 2015年 张国锋. All rights reserved.
//

#import <Foundation/Foundation.h>
#import "UserModel.h"
@interface DBManager : NSObject

+ (DBManager *)shareManager;
//- (id)init;
- (void)insertModel:(UserModel *)model;
- (void)deleteDataWith:(NSNumber *)dataID;
- (void)updateWith:(UserModel *)model;
- (NSArray *)selectAllData;
- (BOOL)isOrNotIN:(NSNumber *)idOne;
@end


//
//  DBManager.m
//  DB
//
//  Created by qianfeng on 15/7/22.
//  Copyright (c) 2015年 张国锋. All rights reserved.
//

#import "DBManager.h"
#import "FMDatabase.h"
@implementation DBManager
{
    FMDatabase *_fmdb;
    NSLock *_lock;//锁
}

+ (DBManager *)shareManager
{
    static DBManager *manager =nil;
    static dispatch_once_t once;
    dispatch_once(&once, ^{
        if (manager==nil) {
            manager =[[DBManager alloc]init];
        }
    });
    return manager;
}

- (id)init
{
    self =[super init];
    if (self) {
        
    _lock =[[NSLock alloc]init];
//        [_lock lock];//加锁
//        
//        [_lock unlock];//解锁
//        
        
        NSString *path=[NSHomeDirectory() stringByAppendingString:@"/Documents/user1.db"];
        _fmdb=[[FMDatabase alloc]initWithPath:path];
        if ([_fmdb open]) {
             NSString *createSql=@"create table if not exists userInfo(id integer primary key autoincrement,name varchar(256),age integer,image blob)";//创建一个userInfo表,blob是用来存储2进制的,如图片
            BOOL success =[_fmdb executeUpdate:createSql]; //增,删,改都用此方法executeUpdate
            if (!success) {
                NSLog(@"%@",_fmdb.lastError);
            }
        }
        //[_fmdb close];//关闭数据库连接
    }
    return self;
}

- (void)insertModel:(UserModel *)model
{
     [_lock lock];
    NSString *insertSql =@"insert into userInfo(name,age,image) values(?,?,?)";
 
    UIImage *image =model.headImage;
    NSData *data =UIImagePNGRepresentation(image);
    //这个方法是可以讲png类型的图片转化成NSData
     
    BOOL success=[_fmdb executeUpdate:insertSql,model.name,model.age,data];
    //executeUpdate 后面需要去接 继承于NSobject类所实例化对象,否则会抛出EXC_BAD_ACCESS 错误
    if (!success) {
        NSLog(@"%@",_fmdb.lastError);
    }
    [_lock unlock];//解锁
    
    //[_fmdb close];
}

//删除一条数据

- (void)deleteDataWith:(NSNumber *)dataID
{
     [_lock lock];
    NSString *deleteSql =@"delete from userInfo where id=?"; //? 相当于%@
    BOOL success =[_fmdb executeUpdate:deleteSql,dataID];
    if (!success) {
        NSLog(@"%@",_fmdb.lastError);
    }
    
    [_lock unlock];//解锁
}

//更新一条数据
- (void)updateWith:(UserModel *)model
{
    [_lock lock];
    NSString *updateSql =@"update userinfo set name=?,age=?,image=? where id=?";
    UIImage *image =model.headImage;
    NSData *data =UIImagePNGRepresentation(image);
    NSNumber *IDNum =[NSNumber numberWithInteger:[model.id1 integerValue]];
    BOOL success =[_fmdb executeUpdate:updateSql,model.name,model.age,data,IDNum];
    if (!success) {
       NSLog(@"%@",_fmdb.lastError);
    }
    [_lock unlock];
}


- (NSArray *)selectAllData
{
    [_lock lock];
    NSString *selSQL =@"select * from userInfo";
    FMResultSet *set = [_fmdb executeQuery:selSQL];
    
    NSMutableArray *array =[NSMutableArray array];
    
    
    while ([set next]) {
        UserModel *model =[[UserModel alloc]init];
        
        model.name=[set stringForColumn:@"name"];//
        
        NSData *data=[set dataForColumn:@"image"];
        
        UIImage *image =[UIImage imageWithData:data];//把NSData类型的数据转化成image
        
        model.headImage=image;
        model.age= [NSNumber numberWithInteger:[[set stringForColumn:@"age"] integerValue]] ;
        
        [array addObject:model];
        
    }
    [_lock unlock];
    return [array copy];

}

//查询一条语句是否存在
- (BOOL)isOrNotIN:(NSNumber *)idOne
{

//
//  ViewController.m
//  DB
//
//  Created by qianfeng on 15/7/22.
//  Copyright (c) 2015年 张国锋. All rights reserved.
//

#import "ViewController.h"
#import "DetailViewController.h"
#import "DBManager.h"
 
@interface ViewController () <UITableViewDelegate,UITableViewDataSource,reloadProtocol>
{
    UITableView *_tabelView;
    NSMutableArray *_dataArray;
}
@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    [self configUI];
    [self loadData];
    
}

- (void)loadData
{
    NSArray *array =[[DBManager shareManager] selectAllData];
    _dataArray =[array mutableCopy];
    [_tabelView reloadData];
}

- (void)configUI
{
    self.view.backgroundColor=[UIColor whiteColor];
    
    UIBarButtonItem *bar =[[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemAdd target:self action:@selector(push)];
    
    self.navigationItem.rightBarButtonItem=bar;
    
    
    _tabelView= [[UITableView alloc]initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height)];
    
    _tabelView.delegate=self;
    _tabelView.dataSource=self;
    
    [_tabelView registerClass:[UITableViewCell class] forCellReuseIdentifier:@"cell"];
    [self.view addSubview:_tabelView];
    _dataArray =[NSMutableArray array];
    
    
}

- (void)push
{
    DetailViewController *vc =[[DetailViewController alloc]init];
   // vc.delegate=self;
    
    vc.rdBlock=^{
        NSArray *array =[[DBManager shareManager] selectAllData];
        _dataArray =[array mutableCopy];
        [_tabelView reloadData]; //可能出现强强引用的问题
    };
    [self.navigationController pushViewController:vc animated:YES];
}

-(void)reloadDataMath
{
    NSLog(@"12");
}



- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
   return  _dataArray.count;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    UITableViewCell *cell =[tableView dequeueReusableCellWithIdentifier:@"cell" forIndexPath:indexPath];
    
    
    UserModel *model =_dataArray[indexPath.row];
    cell.imageView.image=model.headImage;
    cell.textLabel.text=model.name;
    cell.detailTextLabel.text=[NSString stringWithFormat:@"%@",model.age];
    
    return cell;
    
}

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
    return 100;
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end

//  DetailViewController.h
//  DB
//
//  Created by qianfeng on 15/7/22.
//  Copyright (c) 2015年 张国锋. All rights reserved.
//

#import <UIKit/UIKit.h>

@protocol reloadProtocol <NSObject>

-(void)reloadDataMath;

@end
typedef void (^rDBlock)();

@interface DetailViewController : UIViewController
@property (nonatomic,strong) rDBlock rdBlock;

@property (nonatomic,assign) id <reloadProtocol>delegate;
@end



//
//  DetailViewController.m
//  DB
//
//  Created by qianfeng on 15/7/22.
//  Copyright (c) 2015年 张国锋. All rights reserved.
//

#import "DetailViewController.h"
#import "GFControl.h"
#import "DBManager.h"
#import <MobileCoreServices/MobileCoreServices.h>
@interface DetailViewController () <UIActionSheetDelegate,UINavigationControllerDelegate,UIImagePickerControllerDelegate>
{
    UITextField *_nameField;
    UITextField *_ageField;
    UIButton *_headImage;//头像
    UIImage *_image;
    
}
@end

@implementation DetailViewController

- (void)viewDidLoad {
    [super viewDidLoad];
   
    self.view.backgroundColor =[UIColor whiteColor];
    [self configUI];
}

- (void)configUI
{
    CGFloat width=self.view.frame.size.width;
    UILabel *nameLabel =[GFControl createLabelWithFontSize:18 WithFrame:CGRectMake(30, 100, 80, 30) WithText:@"姓名"];
    [self.view addSubview:nameLabel];
    _nameField=[GFControl createTextFieldWithFrame:CGRectMake(120, 100, width-120-30, 30)];
    [self.view  addSubview:_nameField];
    
    
    
    UILabel *ageLabel=[GFControl createLabelWithFontSize:18 WithFrame:CGRectMake(30, 150, 80, 30) WithText:@"年龄"];
    [self.view addSubview:ageLabel];
    
    _ageField=[GFControl createTextFieldWithFrame:CGRectMake(120, 150, width-120-30, 30)];
    [self.view  addSubview:_ageField];
    
    UILabel *headLabel =[GFControl createLabelWithFontSize:18 WithFrame:CGRectMake(30, 200, 80, 30) WithText:@"头像"];
    [self.view addSubview:headLabel];
    
    
    _headImage =[[UIButton alloc]initWithFrame:CGRectMake(120+(width-120-30-150)/2.0, 200, 150, 150)];
    
    _headImage.backgroundColor =[UIColor yellowColor];
    [_headImage addTarget:self action:@selector(btnClick:) forControlEvents:UIControlEventTouchUpInside];
    [self.view addSubview:_headImage];
    
    UIButton *btn =[[UIButton alloc]initWithFrame:CGRectMake(100, 500, 200, 200)];
    [btn setTitle:@"完成" forState:UIControlStateNormal];
    [btn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
    [btn addTarget:self action:@selector(pop) forControlEvents:UIControlEventTouchUpInside];
    
    [self.view addSubview:btn];
}


- (void)pop
{
    UserModel *model =[[UserModel alloc]init];
    model.name=_nameField.text;
    model.age=[NSNumber numberWithInteger:[_ageField.text integerValue]];
    model.headImage=_image;
        
   // [_delegate reloadDataMath];//代理
   
    
    [[DBManager shareManager] insertModel:model];
    
    
     _rdBlock();
    [self.navigationController popViewControllerAnimated:YES];
}

- (void)btnClick:(UIButton *)btn
{
    NSLog(@"2");
    
    UIActionSheet *acSheet=[[UIActionSheet alloc]initWithTitle:@"选择图片来源" delegate:self cancelButtonTitle:@"取消" destructiveButtonTitle:nil otherButtonTitles:@"相册",@"相机", nil];
    
    [acSheet showInView:self.view];
}

- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex
{
    if (buttonIndex==0) {
        
//        NSLog(@"调用相册");
        
        if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypePhotoLibrary]) {
            //isSourceTypeAvailable yes:可以调用 NO 不可调用
           // UIImagePickerControllerSourceTypePhotoLibrary 调用相册 UIImagePickerControllerSourceTypeCamera 掉用相机
            
            UIImagePickerController *pick =[[UIImagePickerController alloc]init];
            
            //第二步:实例化 UIImagePickerController
            pick.sourceType=UIImagePickerControllerSourceTypePhotoLibrary;// 第三步,告诉pick对象调用的是系统的相册
            
            pick.delegate=self;//第四步,设置代理
            
            pick.allowsEditing=YES;//第五步,自动修图
            
            
            [self presentViewController:pick animated:YES completion:^{}];
        }
        else
        {
            NSLog(@"调用相机失败");
        }
        
    }else if(buttonIndex ==1)
    {
//        NSLog(@"调用相机");
    }
}



- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
    NSLog(@"%@",info);
    NSString *mediaType =[info objectForKey:UIImagePickerControllerMediaType];
    if ([mediaType isEqualToString:(NSString *)kUTTypeImage]) {
        [_headImage setImage:[info objectForKey:UIImagePickerControllerEditedImage] forState:UIControlStateNormal];
        _image=[info objectForKey:UIImagePickerControllerEditedImage];
    }
    [picker dismissViewControllerAnimated:YES completion:nil];
}
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker
{
   // [self dismissViewControllerAnimated:YES completion:nil];
      [picker dismissViewControllerAnimated:YES completion:nil];
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

/*
#pragma mark - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    // Get the new view controller using [segue destinationViewController].
    // Pass the selected object to the new view controller.
}
*/

@end

NSString *sql =@"select * from userInfo where id =?"; FMResultSet *set = [_fmdb executeQuery:sql,idOne]; return [set next]; } @end