我正在将文本文件中的记录导入我的数据库。我设置了它来检查我的记录，以确保数据库中没有重复。如果数据库中已经有一个条目，它将跳过该记录。现在我需要解决的问题是文本文件中没有记录但数据库中有记录时。我需要从数据库中删除与文件中任何记录都不匹配的记录。
public static void ParseComplaint(string location)
{
Console.WriteLine("Parsing.....");
List<AutoMakeNoEntity> am = DBCacheHelper.GetAllMakes().ToList<AutoMakeNoEntity>();
using (var reader = new StreamReader(location))
{
foreach (string line in File.ReadLines(location))
{
if (string.IsNullOrWhiteSpace(line))
{
continue;
}
var tokens = line.Trim().Split(new char[] { '\t' });
if (am.Any(c => c.MakeName == tokens[3]))
{
using (RecallsContext context = new RecallsContext())
{
string tmp = tokens[0];
if (!context.complaints.Any(c => c.CMPLID == tmp))
{
var recalls = new Complaints();
recalls.CMPLID = tokens[0];
recalls.ODINO = tokens[1];
recalls.MFR_NAME = tokens[2];
recalls.MAKETXT = tokens[3];
recalls.MODELTXT = tokens[4];
recalls.YEARTXT = tokens[5];
recalls.CRASH = tokens[6];
recalls.FAILDATE = tokens[7];
recalls.FIRE = tokens[8];
recalls.INJURED = tokens[9];
recalls.DEATHS = tokens[10];
recalls.COMPDESC = tokens[11];
recalls.CITY = tokens[12];
recalls.STATE = tokens[13];
recalls.VIN = tokens[14];
recalls.DATEA = tokens[15];
recalls.LDATE = tokens[16];
recalls.MILES = tokens[17];
recalls.OCCURENCES = tokens[18];
recalls.CDESCR = tokens[19];
recalls.CMPL_TYPE = tokens[20];
recalls.POLICE_RPT_YN = tokens[21];
recalls.PURCH_DT = tokens[22];
recalls.ORIG_OWNER_YN = tokens[23];
recalls.ANTI_BRAKES_YN = tokens[24];
recalls.CRUISE_CONT_YN = tokens[25];
recalls.NUM_CYLS = tokens[26];
recalls.DRIVE_TRAIN = tokens[27];
recalls.FUEL_SYS = tokens[28];
recalls.FUEL_TYPE = tokens[29];
recalls.TRANS_TYPE = tokens[30];
recalls.VEH_SPEED = tokens[31];
recalls.DOT = tokens[32];
recalls.TIRE_SIZE = tokens[33];
recalls.LOC_OF_TIRE = tokens[34];
recalls.TIRE_FAIL_TYPE = tokens[35];
recalls.ORIG_EQUIP_YN = tokens[36];
recalls.MANUF_DT = tokens[37];
recalls.SEAT_TYPE = tokens[38];
recalls.RESTRAINT_TYPE = tokens[39];
recalls.DEALER_NAME = tokens[40];
recalls.DEALER_TEL = tokens[41];
recalls.DEALER_CITY = tokens[42];
recalls.DEALER_STATE = tokens[43];
recalls.DEALER_ZIP = tokens[44];
recalls.PROD_TYPE = tokens[45];
if (tokens.Length == 47)
{
recalls.REPAIRED_YN = tokens[46];
}
context.complaints.Add(recalls);
context.SaveChanges();
recalls.Dispose();
}
}
}
}
}
}