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2012-11-30 21:35:06 -05:00
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using System;
namespace MileageTraker.Web.DAL
{
public class ChronologicalOrderException : ApplicationException
{
public ChronologicalOrderException(string message) : base(message)
{
}
}
}
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using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Linq.Expressions;
using System.Text.RegularExpressions;
using MileageTraker.Web.Models;
using MileageTraker.Web.Utility;
using MileageTraker.Web.ViewModels;
namespace MileageTraker.Web.DAL
{
public class DataService : IDisposable
{
private readonly MileageTrakerContext _db = new MileageTrakerContext();
#region Log
public void AddLog(Log log)
{
log.Created = DateTime.Now;
_db.Logs.Add(log);
_db.SaveChanges();
UpdateCurrentOdometer(log.VehicleId);
}
public IQueryable<Log> GetLogs()
{
return _db.Logs;
}
public Log GetLog(int id)
{
return _db.Logs.Find(id);
}
public IEnumerable<int> GetValidLogYears()
{
return
from l in GetLogs()
group l by new {year = l.Date.Year}
into y
orderby y.Key descending
select y.Key.year;
}
public IEnumerable<int> GetValidLogMonths(int year)
{
var start = new DateTime(year, 1, 1);
var end = new DateTime(year + 1, 1, 1);
return
from l in GetLogs()
where l.Date >= start && l.Date < end
group l by new { month = l.Date.Month }
into m
orderby m.Key descending
select m.Key.month;
}
public IEnumerable<LogIndexViewModel> GetLogIndexViewModels(IQueryable<Log> logs)
{
var t =
from log in logs
let previousLog = (from ol in _db.Logs
where ol.VehicleId == log.VehicleId &&
((ol.Date <= log.Date && ol.EndOdometer < log.EndOdometer) ||
(ol.EndOdometer == log.EndOdometer && ol.Created < log.Created))
orderby ol.EndOdometer descending, ol.Created descending
select ol).FirstOrDefault()
select new {log, previousLog};
return from l in t.ToList()
select new LogIndexViewModel(l.log, l.previousLog);
}
public IEnumerable<VehicleMileageItem> GetMonthlyVehicleMileageItems(LogQueryViewModel query)
{
var items =
from l in
from log in FilterLogs(_db.Logs, query)
let previousLog = (from ol in _db.Logs
where ol.VehicleId == log.VehicleId &&
((ol.Date <= log.Date && ol.EndOdometer < log.EndOdometer) ||
(ol.EndOdometer == log.EndOdometer && ol.Created < log.Created))
orderby ol.EndOdometer descending, ol.Created descending
select ol).FirstOrDefault()
select new {log, previousLog, miles = (previousLog != null ? log.EndOdometer - previousLog.EndOdometer : 0)}
group l by l.log.VehicleId
into g
join v in _db.Vehicles on g.Key equals v.VehicleId
let miles = g.Sum(l => l.miles)
let gasPurchased = g.Sum(l => l.log.GasPurchased)
where miles > 0 || gasPurchased > 0
let logPairs =
from i in g
orderby i.log.Date descending , i.log.EndOdometer descending
select new { PreviousLog = i.previousLog, Log = i.log }
select
new
{
VehicleId = g.Key,
GasPurchased = gasPurchased,
Miles = miles,
v.Prog,
LogPairs = logPairs
};
return items.ToList().Select(i => new VehicleMileageItem
{
VehicleId = i.VehicleId,
GasPurchased = i.GasPurchased,
Miles = i.Miles,
Prog = i.Prog,
LogPairs = i.LogPairs.ToList()
.Select(lp => new Tuple<Log,Log>(lp.PreviousLog, lp.Log))
});
}
public IEnumerable<EmployeeMileageItem> GetMonthlyEmployeeMileageItems(LogQueryViewModel query)
{
var items =
from l in
from log in FilterLogs(_db.Logs, query)
let previousLog = (from ol in _db.Logs
where ol.VehicleId == log.VehicleId &&
((ol.Date <= log.Date && ol.EndOdometer < log.EndOdometer) ||
(ol.EndOdometer == log.EndOdometer && ol.Created < log.Created))
orderby ol.EndOdometer descending, ol.Created descending
select ol).FirstOrDefault()
select new { log, previousLog, miles = (previousLog != null ? log.EndOdometer - previousLog.EndOdometer : 0) }
group l by l.log.EmployeeName
into g
let miles = g.Sum(l => l.miles)
let gasPurchased = g.Sum(l => l.log.GasPurchased)
where miles > 0 || gasPurchased > 0
let logPairs =
from i in g
orderby i.log.Date descending, i.log.EndOdometer descending
select new { PreviousLog = i.previousLog, Log = i.log }
select
new
{
EmployeeName = g.Key,
GasPurchased = gasPurchased,
Miles = miles,
LogPairs = logPairs
};
return items.ToList().Select(i => new EmployeeMileageItem
{
EmployeeName = i.EmployeeName,
GasPurchased = i.GasPurchased,
Miles = i.Miles,
LogPairs = i.LogPairs.ToList()
.Select(lp => new Tuple<Log, Log>(lp.PreviousLog, lp.Log))
});
}
public static IQueryable<Log> FilterLogs(IQueryable<Log> logs, LogQueryViewModel query)
{
if (query.Year.HasValue & query.Month.HasValue)
{
var start = new DateTime(query.Year.Value, query.Month.Value, 1);
var end = start.AddMonths(1);
logs = logs.Where(l => l.Date >= start && l.Date < end);
}
if (query.LogType.HasValue)
{
// WTF The specified value is not an instance of type 'Edm.Int32'
Expression<Func<Log, bool>> predicate;
switch (query.LogType.Value)
{
case MileageLogType.NonCommuting:
predicate = l => l.LogType.Value == 1;
break;
case MileageLogType.Commuting:
predicate = l => l.LogType.Value == 2;
break;
case MileageLogType.GasPurchase:
predicate = l => l.LogType.Value == 3;
break;
default:
throw new ArgumentOutOfRangeException();
}
logs = logs.Where(predicate);
}
return logs;
}
public Log GetPreviousLog(Log current)
{
var vehicleId = current.VehicleId;
var date = current.Date;
var endOdometer = current.EndOdometer;
return GetPreviousLog(endOdometer, vehicleId, date, current.Created);
}
public Log GetPreviousLog(int endOdometer, string vehicleId, DateTime date, DateTime created)
{
return GetPreviousLogQuery(endOdometer, vehicleId, date, created).FirstOrDefault();
}
private IOrderedQueryable<Log> GetPreviousLogQuery(int endOdometer, string vehicleId, DateTime date, DateTime created)
{
return from pl in _db.Logs
where pl.VehicleId == vehicleId &&
((pl.Date <= date && pl.EndOdometer < endOdometer)
|| (pl.EndOdometer == endOdometer && pl.Created < created))
orderby pl.EndOdometer descending, pl.Created descending
select pl;
}
public Log GetNextLog(Log current)
{
var vehicleId = current.VehicleId;
var date = current.Date;
var endOdometer = current.EndOdometer;
return GetNextLog(endOdometer, vehicleId, date, current.Created);
}
public Log GetNextLog(int endOdometer, string vehicleId, DateTime date, DateTime created)
{
return (from nl in GetLogs()
where nl.VehicleId == vehicleId &&
((nl.Date >= date && nl.EndOdometer > endOdometer)
|| (nl.EndOdometer == endOdometer && nl.Created > created))
orderby nl.EndOdometer ascending, nl.Created ascending
select nl).FirstOrDefault();
}
public void UpdateLog(Log log)
{
var currentLog = GetLog(log.LogId);
// ignore these properties while updating
log.Created = currentLog.Created;
log.Source = currentLog.Source;
log.UserAgent = currentLog.UserAgent;
log.UserHostAddress = currentLog.UserHostAddress;
_db.Entry(currentLog).CurrentValues.SetValues(log);
_db.Entry(currentLog).State = EntityState.Modified;
_db.SaveChanges();
UpdateCurrentOdometer(log.VehicleId);
}
public void DeleteLog(int id)
{
var log = _db.Logs.Find(id);
_db.Logs.Remove(log);
_db.SaveChanges();
UpdateCurrentOdometer(log.VehicleId);
}
public IEnumerable<Log> GetRecentLogsByEmployee(string employeeName)
{
return
(from l in _db.Logs
where l.EmployeeName == employeeName
orderby l.Created descending
select l)
.Take(3)
.ToList();
}
#endregion
#region Vehicle
public void AddVehicle(Vehicle vehicle)
{
if (vehicle.Assigned == "Unassigned")
vehicle.Assigned = null;
_db.Vehicles.Add(vehicle);
_db.SaveChanges();
}
public IEnumerable<Vehicle> GetVehicles()
{
var vehicles = _db.Vehicles;
return vehicles;
}
public Vehicle GetVehicle(string id)
{
return _db.Vehicles.Find(id);
}
public void UpdateVehicle(Vehicle vehicle)
{
if (vehicle.Assigned == "Unassigned")
vehicle.Assigned = null;
_db.Entry(vehicle).State = EntityState.Modified;
_db.SaveChanges();
}
public void UpdateCurrentOdometer(string vehicleId)
{
var mostRecentOdometerQuery =
from log in _db.Logs
where
log.VehicleId == vehicleId
orderby log.Date descending, log.EndOdometer descending
select log;
var mostRecentOdometer = mostRecentOdometerQuery.FirstOrDefault();
var vehicle = _db.Vehicles.Find(vehicleId);
if (mostRecentOdometer != null && mostRecentOdometer.EndOdometer != vehicle.CurrentOdometer)
{
vehicle.CurrentOdometer = mostRecentOdometer.EndOdometer;
UpdateVehicle(vehicle);
}
}
public void ValidateOdometerChronology(string vehicleId, int odometer, DateTime date)
{
var conflictingLog = GetFirstConflictingOdometerChronologyLog(vehicleId, date, odometer);
if (conflictingLog != null)
{
throw new ChronologicalOrderException(
String.Format(
"Odometer of {0} miles on {1:d} conflicts with other logs for vehicle {2}" +
", including an odometer log of {3} miles on {4:d} reported by {5}.",
odometer, date, vehicleId, conflictingLog.EndOdometer, conflictingLog.Date, conflictingLog.EmployeeName));
}
}
public Log GetFirstConflictingOdometerChronologyLog(string vehicleId, DateTime date, int odometer)
{
// TODO HACK for testing, delete later
try
{
if (_db.Logs.Count() == 0)
return null;
}
catch (NullReferenceException)
{
return null;
}
var conflictingLogsQuery =
from log in _db.Logs
let existingDate = log.Date
let existingOdometer = log.EndOdometer
where
log.VehicleId == vehicleId &&
!(existingDate == date
|| existingOdometer == odometer
|| existingDate < date && existingOdometer < odometer
|| existingDate > date && existingOdometer > odometer)
orderby existingOdometer descending
select log;
return conflictingLogsQuery.FirstOrDefault();
}
#endregion
#region Employee Name
public string GetEmployeeNameCorrected(string term)
{
var names = GetEmployeeNames().ToList();
return (from potentialName in names
let potentialNameClean = Regex.Replace(potentialName, @"\s*\(.*\)", "").ToLower()
let name = term.ToLower()
let similarity = Algorithms.Similarity(potentialNameClean, name)
where similarity > .7 || potentialNameClean.StartsWith(name)
orderby similarity descending
select potentialName).FirstOrDefault();
}
public IEnumerable<string> GetEmployeeNamesAutocomplete(string term)
{
var termLower = term.ToLower();
return from name in GetEmployeeNames()
let nameLower = name.ToLower()
where nameLower.StartsWith(termLower) || Algorithms.Similarity(nameLower, termLower) > .8
select name;
}
public IEnumerable<string> GetEmployeeNames()
{
var names = _db.Vehicles.Select(v => v.Assigned).Where(n => !String.IsNullOrEmpty(n) && n != "to be sold");
var logNames =
(from l in _db.Logs
select l.EmployeeName);
return names.Union(logNames).Distinct();
}
#endregion
#region City
public string GetCitiesCorrected(string term)
{
var termLower = term.ToLower();
return (from city in GetCities().ToList()
let cityToLower = city.Name.ToLower()
let similarity = Algorithms.Similarity(cityToLower, termLower)
where city.Name.StartsWith(term) || Algorithms.Similarity(cityToLower, termLower) > .8
select city.Name).FirstOrDefault();
}
public IEnumerable<string> GetCitiesAutocomplete(string term)
{
return
from city in GetCities()
where city.Name.StartsWith(term)
select city.Name;
}
private IQueryable<City> GetCities()
{
return _db.Cities;
}
#endregion
public void Dispose()
{
_db.Dispose();
}
}
}
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using System;
using System.Data.Entity;
using System.IO;
using System.Linq;
using System.Web;
using MileageTraker.Web.Models;
namespace MileageTraker.Web.DAL
{
public class MileageTrakerInitializer :
#if DEBUG
DropCreateDatabaseIfModelChanges<MileageTrakerContext>
#else
CreateDatabaseIfNotExists<MileageTrakerContext>
#endif
{
private const string CreateIndex = "CREATE NONCLUSTERED INDEX [IDX_{1}] ON [{0}] ([{1}])";
protected override void Seed(MileageTrakerContext context)
{
Action<string, string> createIndex =
(table, column) => context.Database.ExecuteSqlCommand(string.Format(CreateIndex, table, column));
createIndex("Log", "VehicleId");
createIndex("Log", "EndOdometer");
//createIndex("Log", "EmployeeName");
//createIndex("Log", "CityName");
createIndex("Log", "Date");
createIndex("Log", "Created");
//createIndex("Vehicle", "Assigned");
var folder = HttpContext.Current.Server.MapPath("~/App_Data");
var vehicles = VehicleImporter.Import(Path.Combine(folder, "2011ETHRAvehicles.xls"));
foreach (var vehicle in vehicles)
{
context.Vehicles.Add(vehicle);
}
var cities = VehicleImporter.ImportCities(Path.Combine(folder, "Cities.xls"));
foreach (var city in cities)
{
context.Cities.Add(city);
}
var random = new Random(10);
foreach (var vehicle in vehicles.Where(v => v.Assigned != null))
{
var odom = 1000 + random.Next(20000);
var purDateSplit = vehicle.PurDate.Split('/');
var date = new DateTime(int.Parse("20" + purDateSplit[1]), int.Parse(purDateSplit[0]), 1);
var commonLogType = random.Next(1)%2 == 0 ? MileageLogType.NonCommuting : MileageLogType.Commuting;
var commonCity = cities.OrderBy(c => Guid.NewGuid()).First();
while (date < DateTime.Today)
{
var gas = random.Next(4)%4 == 0 ? Math.Round(random.NextDouble()*15, 3) : 0;
var logType = commonLogType;
if (gas > 0 && random.Next(3) % 3 == 0)
logType = MileageLogType.GasPurchase;
else if (random.Next(6) % 6 == 0)
logType = commonLogType == MileageLogType.NonCommuting ? MileageLogType.Commuting : MileageLogType.NonCommuting;
var driver = vehicle.Assigned;
if (random.Next(10)%10 == 0)
driver = vehicles.Where(v => v.Assigned != null).OrderBy(x => Guid.NewGuid()).First().Assigned;
var city = commonCity;
if (random.Next(10)%10 == 0)
city = cities.OrderBy(c => Guid.NewGuid()).First();
var log = new Log
{
CityName = city.Name,
Date = date,
EmployeeName = driver,
EndOdometer = odom,
GasPurchased = gas,
LogType = logType,
VehicleId = vehicle.VehicleId,
Source = "Autogenerated",
UserAgent = "IE",
UserHostAddress = "127.0.0.1",
Created = date
};
context.Logs.Add(log);
date += new TimeSpan(random.Next(15), 0, 0, 0);
if (random.Next(10) % 10 == 0)
date += new TimeSpan(random.Next(360) + 90, 0, 0, 0);
odom += random.Next(25) + 25;
}
}
context.SaveChanges();
}
}
}
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using System;
using System.Collections.Generic;
using System.IO;
using System.Text.RegularExpressions;
using ExcelLibrary.SpreadSheet;
using MileageTraker.Web.Models;
using MileageTraker.Web.Utility;
namespace MileageTraker.Web.DAL
{
public static class VehicleImporter
{
private const string WorksheetName = "Vehicles";
private const string WorksheetTitle = "EAST TENNESSEE HUMAN RESOURCE AGENCY";
public static void Export(IEnumerable<Vehicle> vehicles, string filename)
{
ExcelWriter.WriteXls(vehicles, filename, WorksheetTitle, WorksheetName);
}
public static void Export(IEnumerable<Vehicle> vehicles, Stream stream)
{
ExcelWriter.WriteXls(vehicles, stream, WorksheetTitle, WorksheetName);
}
public static byte[] Export(IEnumerable<Vehicle> vehicles)
{
return ExcelWriter.WriteXls(vehicles, WorksheetTitle, WorksheetName);
}
public static IEnumerable<City> ImportCities(string filename)
{
var fileInfo = new FileInfo(filename);
return ImportCities(Workbook.Load(fileInfo.FullName));
}
private static IEnumerable<City> ImportCities(Workbook workbook)
{
var sheet = workbook.Worksheets[0];
for (var r = sheet.Cells.FirstRowIndex + 1; r <= sheet.Cells.LastRowIndex; r++)
{
var row = sheet.Cells.GetRow(r);
var city = new City
{
County = row.GetCell(0).StringValue.Trim(),
Name = row.GetCell(1).StringValue.Trim()
};
yield return city;
}
}
public static IEnumerable<Vehicle> Import(string filename)
{
var fileInfo = new FileInfo(filename);
return Import(Workbook.Load(fileInfo.FullName));
}
private static IEnumerable<Vehicle> Import(Workbook workbook)
{
var sheet = workbook.Worksheets[0];
var first = true;
for (var r = sheet.Cells.FirstRowIndex; r <= sheet.Cells.LastRowIndex; r++)
{
var row = sheet.Cells.GetRow(r);
if (row.LastColIndex != 11)
continue;
if (first)
{
first = false;
continue;
}
var vehicle = new Vehicle();
int key;
if (!int.TryParse(row.GetCell(0).StringValue.Trim(), out key))
continue; // WARN
vehicle.Key = key;
vehicle.VehicleId = row.GetCell(1).StringValue.Trim();
vehicle.ModelYear = row.GetCell(2).StringValue.Trim();
var makeModel = row.GetCell(3).StringValue.Trim();
const string pattern = @"(\w+)\s+(.+)";
var make = Regex.Replace(makeModel, pattern, "$1");
var model = Regex.Replace(makeModel, pattern, "$2");
vehicle.Make = make;
vehicle.CarModel = model;
vehicle.Color = row.GetCell(4).StringValue.Trim();
if (vehicle.Color == "0")
vehicle.Color = "Unknown";
vehicle.Type = row.GetCell(5).StringValue.Trim();
vehicle.Vin = row.GetCell(6).StringValue.Trim().Replace('O','0').Substring(0,17);
vehicle.Price = decimal.Parse(row.GetCell(7).StringValue.Trim());
vehicle.PurDate = row.GetCell(8).StringValue.Trim();
vehicle.TagNumber = row.GetCell(9).StringValue.Trim();
vehicle.Prog = row.GetCell(10).StringValue.Trim();
vehicle.Assigned = row.GetCell(11).StringValue.Trim();
vehicle.Assigned = Regex.Replace(vehicle.Assigned, @"(\w+),\s*(\w+)", "$2 $1");
var match = Regex.Match(vehicle.Assigned, @"\s*\((?<Notes>.*)\)\s*");
if (match.Success)
{
vehicle.Notes = match.Groups["Notes"].Value;
vehicle.Assigned = Regex.Replace(vehicle.Assigned, @"\s*\(.*\)\s*", " ").Trim();
}
if (vehicle.Assigned == "Unassigned")
vehicle.Assigned = null;
yield return vehicle;
}
}
}
}