Case_accounting/CaseAccounting/CaseAccountingDataBaseImplement/Implements/DealStorage.cs

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C#
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using CaseAccountingContracts.BindingModels;
using CaseAccountingContracts.SearchModels;
using CaseAccountingContracts.StoragesContracts;
using CaseAccountingContracts.ViewModels;
using CaseAccountingDataBaseImplement.Models;
using Microsoft.EntityFrameworkCore;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace CaseAccountingDataBaseImplement.Implements
{
public class DealStorage : IDealStorage
{
public DealViewModel? Delete(DealBindingModel model)
{
using var context = new CaseAccountingDatabase();
var element = context.Deals
.Include(x => x.User)
.FirstOrDefault(rec => rec.Id == model.Id);
if (element == null)
{
return null;
}
context.Deals.Remove(element);
context.SaveChanges();
return element.GetViewModel;
}
public DealViewModel? GetElement(DealSearchModel model)
{
if (!model.Id.HasValue)
{
return null;
}
using var context = new CaseAccountingDatabase();
return context.Deals
.Include(x => x.User)
.FirstOrDefault(x => model.Id.HasValue && x.Id == model.Id)
?.GetViewModel;
}
public List<DealViewModel> GetFilteredList(DealSearchModel model)
{
using var context = new CaseAccountingDatabase();
if (model.Id.HasValue)
{
return context.Deals
.Include(x => x.User)
.Where(x => x.Id == model.Id)
.Select(x => x.GetViewModel)
.ToList();
}
if (model.Date != null)
{
return context.Deals
.Include(x => x.User)
.Where(x => x.Date == model.Date)
.Select(x => x.GetViewModel)
.ToList();
}
if (model.UserId.HasValue)
{
return context.Deals
.Include(x => x.User)
.Where(x => x.UserId == model.UserId)
.Select(x => x.GetViewModel)
.ToList();
}
else
{
return new();
}
}
public List<DealViewModel> GetFullList()
{
using var context = new CaseAccountingDatabase();
return context.Deals
.Include(x => x.User)
.Select(x => x.GetViewModel)
.ToList();
}
public DealViewModel? Insert(DealBindingModel model)
{
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using var context = new CaseAccountingDatabase();
var newDeal = Deal.Create(context, model);
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if (newDeal == null)
{
return null;
}
context.Deals.Add(newDeal);
context.SaveChanges();
return context.Deals
.Include(x => x.User)
.FirstOrDefault(x => x.Id == newDeal.Id)
?.GetViewModel;
}
public DealViewModel? Update(DealBindingModel model)
{
using var context = new CaseAccountingDatabase();
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using var transaction = context.Database.BeginTransaction();
try
{
var deal = context.Deals
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.Include(x => x.User)
.FirstOrDefault(x => x.Id == model.Id);
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if (deal == null)
{
return null;
}
deal.Update(model);
context.SaveChanges();
deal.UpdateCases(context, model);
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transaction.Commit();
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return deal.GetViewModel;
}
catch
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{
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transaction.Rollback();
throw;
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}
}
}
}