XCode4 - 在哪里查找由核心数据创建的sqlite文件 [英] XCode4 - where to look for sqlite file created by core data

问题描述

我刚刚开始使用核心数据。我想设置一个预填充的数据库。我读某处，当核心数据应用程序运行时，核心数据创建一个sqlite文件。我不知道在哪里找它。

我按照 blog ，但没有找到sqlite文件的位置指定目录 / Users /<用户名> /库/应用程序支持/ iPhone模拟器/用户/应用程序/<应用程序GUID> / Documents /< database name.sqlite> 也不在应用程序目录中。

这里是我的用于persistentCoordinator的代码。

   - （NSPersistentStoreCoordinator *）persistentStoreCoordinator 
 {
 if（__persistentStoreCoordinator！= nil）
 {
 return __persistentStoreCoordinator; 
} 
 
 NSString * storePath = [[[self applicationDocumentsDirectory] ​​path] stringByAppendingPathComponent：@coredata.sqlite]; 
 NSFileManager * fileManager = [NSFileManager defaultManager]; 
 if（！[fileManager fileExistsAtPath：storePath]）{
 NSString * defaultStorePath = [[NSBundle mainBundle] pathForResource：@coredataofType：@sqlite]; 
 if（defaultStorePath）{
 [fileManager copyItemAtPath：defaultStorePath toPath：storePath error：NULL]; 
} 
} 
 
 NSURL * storeURL = [NSURL fileURLWithPath：storePath]; 
 NSDictionary * options = [NSDictionary dictionaryWithObjectsAndKeys：[NSNumber numberWithBool：YES]，NSMigratePersistentStoresAutomaticallyOption，[NSNumber numberWithBool：YES]，NSInferMappingModelAutomaticallyOption，nil]; 
 
 NSError * error = nil; 
 __persistentStoreCoordinator = [[NSPersistentStoreCoordinator alloc] initWithManagedObjectModel：[self managedObjectModel]]; 
 if（！[__ persistentStoreCoordinator addPersistentStoreWithType：NSSQLiteStoreType configuration：nil URL：storeURL options：options error：& error]）
 {
 NSLog（@Unresolved error％@，％@ error，[error userInfo]）; 
 abort（）; 
} 
 
 return __persistentStoreCoordinator; 
} 
  

解决方案

c / c> c / c / c / c / c / c / c / c / c / c / c / c / b
$ b

如果您有多个SDK，请务必查看您的应用程序的所有不同的SDK版本目录。

I have just started using core data. I want to setup a pre-populated db. I read somewhere that core data creates a sqlite file when a core data app is run. I don't know where to look for it though.

I followed the instructions over on this blog but did not find the sqlite file over the location specified directory /Users/<Username>/Library/Application Support/iPhone Simulator/User/Application/<Application GUID>/Documents/<database name.sqlite> nor in the application directory.

here is my code for persistentCoordinator.

- (NSPersistentStoreCoordinator *)persistentStoreCoordinator
{
    if (__persistentStoreCoordinator != nil)
    {
        return __persistentStoreCoordinator;
    }

    NSString *storePath = [[[self applicationDocumentsDirectory] path] stringByAppendingPathComponent:@"coredata.sqlite"];
    NSFileManager *fileManager = [NSFileManager defaultManager];
    if (![fileManager fileExistsAtPath:storePath]) {
        NSString *defaultStorePath = [[NSBundle mainBundle] pathForResource:@"coredata" ofType:@"sqlite"];
        if (defaultStorePath) {
            [fileManager copyItemAtPath:defaultStorePath toPath:storePath error:NULL];
        }
    }

    NSURL *storeURL = [NSURL fileURLWithPath:storePath];
    NSDictionary *options = [NSDictionary dictionaryWithObjectsAndKeys:[NSNumber numberWithBool:YES], NSMigratePersistentStoresAutomaticallyOption, [NSNumber numberWithBool:YES], NSInferMappingModelAutomaticallyOption, nil];

    NSError *error = nil;
    __persistentStoreCoordinator = [[NSPersistentStoreCoordinator alloc] initWithManagedObjectModel:[self managedObjectModel]];
    if (![__persistentStoreCoordinator addPersistentStoreWithType:NSSQLiteStoreType configuration:nil URL:storeURL options:options error:&error])
    {
        NSLog(@"Unresolved error %@, %@", error, [error userInfo]);
        abort();
    }    

    return __persistentStoreCoordinator;
}

解决方案

Those files are in ~/Library/Application Support/iPhone Simulator/[SDK version]/Applications/[App GUID]/Documents for me, both for Xcode 3 and Xcode 4.

If you have multiple SDKs, make sure to look in all the different SDK version directories for your app.

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