CourseWork_Bank/Bank/BankDatabaseImplement/Implements/OperationStorage.cs

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C#
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using BankContracts.BindingModels;
using BankContracts.SearchModels;
using BankContracts.StoragesContracts;
using BankContracts.ViewModels;
using BankDatabaseImplement.Models;
using Microsoft.EntityFrameworkCore;
namespace BankDatabaseImplement.Implements
{
public class OperationStorage : IOperationStorage
{
private void CheckSearchModel(OperationSearchModel model)
{
if (model == null)
throw new ArgumentNullException("Передаваемая модель для поиска равна нулю", nameof(model));
if (!model.Id.HasValue && !model.EmployeeId.HasValue && model.PurchasesIds == null)
throw new ArgumentException("Все передаваемые поля поисковой модели оказались пусты или равны null");
}
public OperationViewModel? Delete(OperationBindingModel model)
{
using var context = new BankDB();
var element = context.Operations.FirstOrDefault(x => x.Id == model.Id);
if (element != null)
{
context.Operations.Remove(element);
context.SaveChanges();
return element.GetViewModel;
}
return null;
}
public OperationViewModel? GetElement(OperationSearchModel model)
{
CheckSearchModel(model);
if (!model.Id.HasValue)
{
return null;
}
using var context = new BankDB();
return context.Operations
.Include(x => x.Employee)
.FirstOrDefault(x => model.Id.HasValue && x.Id == model.Id)?.GetViewModel;
}
public List<OperationViewModel> GetFilteredList(OperationSearchModel model)
{
CheckSearchModel(model);
if (model.Id.HasValue)
{
var res = GetElement(model);
return res != null ? new() { res } : new();
}
using var context = new BankDB();
var query = context.Operations.Include(x => x.Employee);
if (model.EmployeeId.HasValue)
{
return query
.Where(x => model.EmployeeId == x.EmployeeId)
.Select(x => x.GetViewModel)
.ToList();
}
if (model.PurchasesIds != null)
return query
.Include(x => x.Purchases)!
.ThenInclude(x => x.Purchase)
.ThenInclude(x => x.Operations)
.Where(x => x.Purchases.Any(y => model.PurchasesIds.Contains(y.PurchaseId)))
.Select(x => x.GetViewModel)
.ToList();
return new();
}
public List<OperationViewModel> GetFullList()
{
using var context = new BankDB();
return context.Operations.Include(x => x.Employee)
.Select(x => x.GetViewModel)
.ToList();
}
public OperationViewModel? Insert(OperationBindingModel model)
{
var newOperation = Operation.Create(model);
if (newOperation == null)
{
return null;
}
using var context = new BankDB();
context.Operations.Add(newOperation);
context.SaveChanges();
return newOperation.GetViewModel;
}
public OperationViewModel? Update(OperationBindingModel model)
{
using var context = new BankDB();
var car = context.Operations.FirstOrDefault(x => x.Id == model.Id);
if (car == null)
{
return null;
}
car.Update(model);
context.SaveChanges();
return car.GetViewModel;
}
}
}