iOS - 在真实设备上连接到数据库的错误

我一直在为iOS设计Ionic Phonegap项目。在Appdelegate.m中实现了一个方法，该方法使得AJAX请求从服务器下载文本文件，该文件包含连接到另一个服务器的URL以使应用程序工作。iOS - 在真实设备上连接到数据库的错误

我已经做了两个班， WebContent和WebCustomContent

在WebContent.m我插入从文本文件带到一个SQLite数据库特定的URL，然后使用WebCustomContent.m

检索参考下面的代码块

-(NSString*)getDataBasePath{ 

    //CHECK 
    NSString* documentsPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0]; 
    NSString* foofile = [documentsPath stringByAppendingPathComponent:@"webcontentdb.sqlite"]; 
    BOOL fileExists = [[NSFileManager defaultManager] fileExistsAtPath:foofile]; 
    NSLog(@"%d", fileExists); 


    //END OF CHECK 



    //SIMULATOR 
    NSString *databasePath1 = [[NSBundle mainBundle] pathForResource:@"webcontentdb" ofType:@"sqlite"]; 
    // return databasePath1; 


    //REAL DEVICE 
    NSArray* paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); 
    NSString* documentsDirectory = [paths objectAtIndex:0]; 
    NSString* databasePath = [documentsDirectory stringByAppendingPathComponent:@"webcontentdb.sqlite"]; 
    return databasePath; 
} 


-(void)updateUserAgeRange:(NSString*)age{ 

    NSString* databasePath = [self getDataBasePath]; 
    sqlite3 *database; 


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

     NSString *query = [NSString stringWithFormat:@"update user_setting set valstr = '%@' where keystr = 'AGE' ", age]; 

     NSLog(@"update %@" , query); 

     const char * sql = [query UTF8String]; 
     sqlite3_stmt *compiledStatement; 
     if(sqlite3_prepare_v2(_database, sql, -1, &compiledStatement, NULL) == SQLITE_OK) { 
      sqlite3_step(compiledStatement); // Here is the added step. 
      NSLog(@"updateContact SUCCESS - executed command %@",query); 
     } 
     else { 
      NSLog(@"updateContact FAILED - failed to execute command %@",query); 
     } 

     sqlite3_finalize(compiledStatement); 

    } 
    else { 
     //NSLog(@"pdateContact FAILED - failed to open database"); 
    } 

    sqlite3_close(database); 

} 


- (NSString *)getUserPreferenceValues:(NSString*)keystr { 



    NSString *retval = [[NSString alloc] init] ; 
    NSString *query = [NSString stringWithFormat:@"SELECT valstr FROM user_setting where keystr = '%@' " , keystr]; 

    NSLog(@" query %@", query); 


    sqlite3_stmt *statement; 
    if (sqlite3_prepare_v2(_database, [query UTF8String], -1, &statement, nil) == SQLITE_OK) { 
     while (sqlite3_step(statement) == SQLITE_ROW) { 


      char *nameChars = (char *) sqlite3_column_text(statement, 0); 

      NSString *name = [[NSString alloc] initWithUTF8String:nameChars]; 

      NSLog(@" valstr %@", name); 
      retval = name; 


     } 
     sqlite3_finalize(statement); 
    } 


    return retval; 
} 

-(void)insertDatabaseCommonValues:(NSString*)urlstr{ 

    NSString* databasePath = [self getDataBasePath]; 


    sqlite3 *database; 
    if(sqlite3_open([databasePath UTF8String], &database) == SQLITE_OK) { 

     NSString *query = [NSString stringWithFormat:@"delete from url_preference"]; 


     const char * sql = [query UTF8String]; 
     sqlite3_stmt *compiledStatement; 
     if(sqlite3_prepare_v2(_database, sql, -1, &compiledStatement, NULL) == SQLITE_OK) { 
      sqlite3_step(compiledStatement); // Here is the added step. 
      // NSLog(@"updateContact SUCCESS - executed command %@",query); 
     } 
     else { 
      //NSLog(@"updateContact FAILED - failed to execute command %@",query); 
     } 

     sqlite3_finalize(compiledStatement); 

    } 
    else { 
     //NSLog(@"pdateContact FAILED - failed to open database"); 
    } 




    //************************************INSERT************************************// 

    //sqlite3 *database; 
    if(sqlite3_open([databasePath UTF8String], &database) == SQLITE_OK) { 


     //NSLog(@"URL STRING %@",urlstr); 

     NSString *query = [NSString stringWithFormat:@"insert into url_preference (name) values ( '%@' ) ", urlstr]; 

     NSLog(@"inset %@" , query); 

     const char * sql = [query UTF8String]; 
     sqlite3_stmt *compiledStatement; 

     NSLog(@" error code.. %d",sqlite3_prepare_v2(_database, sql, -1, &compiledStatement, NULL)); 

     if(sqlite3_prepare_v2(_database, sql, -1, &compiledStatement, NULL) == SQLITE_OK) { 
      sqlite3_step(compiledStatement); // Here is the added step. 
      NSLog(@"updateContact SUCCESS - executed command %@",query); 
     } 
     else { 
      NSLog(@"updateContact FAILED - failed to execute command %@",query); 
     } 

     sqlite3_finalize(compiledStatement); 

    } 
    else { 
     //NSLog(@"pdateContact FAILED - failed to open database"); 
    } 

    sqlite3_close(database); 

}

在这里，当我打印BOOL变量fileExists时，它打印YES，意味着数据库存在于Document中s文件夹。但插入和更新查询失败，如下所示;

2015-06-22 11:18:18.215 App Name[5510:60b] URL http://www.google.lk 
2015-06-22 11:18:22.082 App Name[5510:60b] 1 
2015-06-22 11:18:24.103 App Name[5510:60b] success to open database! 
2015-06-22 11:18:26.197 App Name[5510:60b] 1 
2015-06-22 11:18:28.673 App Name[5510:60b] inset insert into url_preference (name) values ( 'http://www.google.lk' ) 
2015-06-22 11:18:28.676 App Name[5510:60b] error code.. 1 
2015-06-22 11:18:28.679 App Name[5510:60b] updateContact FAILED - failed to execute command insert into url_preference (name) values ( 'http://www.google.lk' )

我已经将数据库文件放在项目文件夹中，如下所示;

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