ios中Pldatabase的用法(4)

封装成DAO
@implementation SqlHelper

+(BOOL)InsertSql:(NSString *)sql paramet:(NSMutableDictionary *)parmet{
  return  [self Modifysql:sql parametDic:parmet];
}

+(BOOL)UpdateSql:(NSString *)sql paramet:(NSMutableDictionary *)parmet{
    
  return  [self Modifysql:sql parametDic:parmet];
}
+(BOOL)DeleteSql:(NSString *)sql paramet:(NSMutableDictionary *)parmet{
   return  [self Modifysql:sql parametDic:parmet];
}

+(void)QuerySql:(NSString *)sql paramet:(NSMutableDictionary *)parmet result:(NSMutableArray *)results{
    PLSqliteDatabase *db=[[appGlobal InitGloab] DBHelper];//这个封装成一个单例
    id<PLPreparedStatement> stmp=[db prepareStatement:sql];
    [stmp bindParameterDictionary:parmet];
    id<PLResultSet> result=[stmp executeQuery];
    while ([result next]) {
        person *p=[[person alloc] init];
        p.name=[result stringForColumn:@"name"];
        p.age=[result  intForColumn:@"age"];
        p.pid=[result intForColumn:@"id"];
        [results addObject:p];
        [p release];
    }
}

+(BOOL)Modifysql:(NSString *)sql parametDic:(NSMutableDictionary *)parmet{
    PLSqliteDatabase *db=[[appGlobal InitGloab] DBHelper];
    id<PLPreparedStatement> stmp=[db prepareStatement:sql];
    [stmp bindParameterDictionary:parmet];
    if ([stmp executeUpdate]) {
        return YES;
    }
    return NO;
}
@end

@interface person : NSObject
@property(nonatomic,assign)int pid;
@property(nonatomic,copy)NSString *name;
@property(nonatomic,assign)int age;
@end