打开数据库（sqlite）
///打开数据库
+ (BOOL)openDataBase{ _TYDatabase = [[FMDatabase alloc]initWithPath:[self databasePath]];
if ([_TYDatabase open]) {
return YES;
}
return NO;
}
///数据库路径
+ (NSString *)databasePath{
NSString *documentPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];
NSString *dataPath = [documentPath stringByAppendingPathComponent:@"TY.SQLite"];
NSFileManager *fileM = [NSFileManager defaultManager];
if (![fileM fileExistsAtPath:dataPath]) {
NSString *filePath = [[NSBundle mainBundle] pathForResource:@"TY" ofType:@"SQLite"];
[fileM copyItemAtPath:filePath toPath:dataPath error:nil];
}
NSLog(@"%@",dataPath);
return dataPath; }
事务
/**
事务
arraySql：SQL语句数组
*/
- (void)beginTransaction:(NSArray *)arraySql;
{
//// static FMDatabase *_TYDatabase = nil;
BOOL isOpen=[_TYDatabase open];
if (!isOpen) {
NSLog(@"打开数据库失败！");
return;
}
///开始事物
[_TYDatabase beginTransaction];
BOOL isRollBack = NO;
@try {
for (int i = ; i<arraySql.count; i++) {
BOOL result = [_TYDatabase executeUpdate:arraySql[i]];
if (!result) {
NSLog(@"操作失败【%d】== SQL：%@",i,arraySql[i]);
}
}
}
@catch (NSException *exception) {
isRollBack = YES;
///回滚
[_TYDatabase rollback];
}
@finally {
if (!isRollBack) {
///提交
[_TYDatabase commit];
}
}
[_TYDatabase close];
}
多线程事务
/**
多线程事务
arraySql：SQL语句数组
*/
+ (void)beginTransactionT:(NSArray *)arraySql{
FMDatabaseQueue *databaseQueue = [FMDatabaseQueue databaseQueueWithPath:[self databasePath]];
[databaseQueue inTransaction:^(FMDatabase *db, BOOL *rollback) {
BOOL result = NO;
for (int i = ; i < arraySql.count; i++) {
result = [_TYDatabase executeUpdate:arraySql[i]];
}
if (result) {
NSLog(@"成功");
}
}];
}