备份和恢复核心数据的SQLite（核心数据）

Question

我已经找遍在SO谷歌等我似乎无法找到一个解决方案或适合手动备份和恢复我的核心数据sqlite的文件教程。目标是让用户从文档目录中手动恢复Core Data SQlite文件。

This seems promising，但仅仅是复杂的我的需要或相关章节extrapulate我的问题。我只想复制希望iCloud所做的备份文档目录，而无需用户每次需要恢复数据时都必须将设备恢复备份。我希望iOS 8中的cloudkit能够让这个更简单，但目前为止没有点击。

总结：我如何获得这些文件的目录达到iCloud中的内容，然后再检索。我不是在同步之后，只是远程存储和检索文档目录。香港专业教育学院读了一些人曾与Dropbox的成功对于这一点，持开放的态度，以

UPDATE

NSString *filePath = [[NSHomeDirectory() stringByAppendingPathComponent:@"Documents"] stringByAppendingPathComponent:@"app.sqlite"]; 
     NSString *filePath2 = [[NSHomeDirectory() stringByAppendingPathComponent:@"Documents"] stringByAppendingPathComponent:@"app.sqlite-shm"]; 
     NSString *filePath3 = [[NSHomeDirectory() stringByAppendingPathComponent:@"Documents"] stringByAppendingPathComponent:@"iCertifi.sqlite-wal"]; 

//Path to documents directory 
     NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); 
     NSString *documentsDirectory = [paths objectAtIndex:0]; 
     NSString *archivePath = [documentsDirectory stringByAppendingString:@"/files.zip"]; 

     //Zip up documents directory 
     ZipArchive *archiver = [[ZipArchive alloc] init]; 
     [archiver CreateZipFile2:archivePath]; 
     [archiver addFileToZip:filePath newname:@"backUp.sqlite"]; 
     [archiver addFileToZip:filePath2 newname:@"backUp.sqlite-shm"]; 
     [archiver addFileToZip:filePath3 newname:@"backUp.sqlite-wal"]; 

Answer 1

我所做的iCloud文档，CloudKit和Dropbox。

Dropbox是最简单的开始。

我拉上我的数据库：

ZipArchive *archiver = [[ZipArchive alloc] init]; 
[archiver CreateZipFile2:archivePath]; 
[archiver addFileToZip:withPath newname:filename]; //@"x.sqlite" 
[archiver addFileToZip:withPath newname:filename]; //@"x.sqlite-shm" 
[archiver addFileToZip:withPath newname:filename]; //@"x.sqlite-wal" 

然后把它送上去给收存箱

NSString *dropBoxPath = [NSString stringWithFormat:@"/%@/%@",kBackupFolder,fileToUpload]; 
DBPath *path = [[DBPath alloc] initWithString:dropBoxPath]; 
NSString *sourcePath = xxxxx; 
if (!info) { 
    DBFile *backupFile = [[DBFilesystem sharedFilesystem] createFile:path error:&createFileError]; 
    DBError *writeFileError; 
    [showFile writeContentsOfFile:sourcePath shouldSteal:NO error:&writeFileError]; 

你可以等待它上传：

while (showFile.status.state == DBFileStateUploading || showFile.status.error) { 
[NSThread sleepForTimeInterval:1.0f]; 
fileprogress = showFile.status.progress; 

链接：

https://github.com/mattconnolly/ZipArchive个

https://www.dropbox.com/developers/sync