由於未捕獲異常'NSInternalInconsistencyException'而終止應用程序，原因：'錯誤：未能用消息打開數據庫'沒有錯誤'。'

我正在製作一個包含許多數據庫操作的應用程序。由於SQLite緩存數據，在我的applicationDidReceiveMemoryWarning方法中，我正在關閉數據庫並再次打開它以刪除緩存的數據。由於未捕獲異常'NSInternalInconsistencyException'而終止應用程序，原因：'錯誤：未能用消息打開數據庫'沒有錯誤'。'

當做到這一點，我得到這個錯誤

*** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Error: failed to open database with message 'not an error'.'

下面是我使用關閉數據庫並在數據庫類型的sqlite3再次打開代碼* [MySQLInter finalizeStatements]

if(sqlite3_close(database) == SQLITE_OK){ 

//open again 
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); 

NSString *documentsDirectory = [paths objectAtIndex:0]; 

NSString *path = [documentsDirectory stringByAppendingPathComponent:@"mydb.sql"]; 


    if(sqlite3_open([path UTF8String], &database) != SQLITE_OK){ 

     NSAssert1(0, @"Error: failed to open database with message '%s'.", sqlite3_errmsg(database)); 

} 

} 

else{ 

NSAssert1(0, @"Error: failed to close database on memwarning with message '%s'.", sqlite3_errmsg(database)); 

}

如何避免這種情況？

來源

2009-01-16 lostInTransit