PIbd-22. Kozlova A.A. Lab work 05 hard #14

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Nastya_Kozlova wants to merge 12 commits from laba5_hard into lab5_base
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using PrecastConcretePlantContracts.BindingModels;
using PrecastConcretePlantContracts.SearchModels;
using PrecastConcretePlantContracts.StoragesContracts;
using PrecastConcretePlantContracts.ViewModels;
using PrecastConcretePlantDatabaseImplement.Models;
using PrecastConcretePlantDataModels.Models;
using Microsoft.EntityFrameworkCore;
namespace PrecastConcretePlantDatabaseImplement.Implements
{
public class ShopStorage : IShopStorage
{
public List<ShopViewModel> GetFullList()
{
using var context = new PrecastConcretePlantDatabase();
return context.Shops
.Include(x => x.Reinforceds)
.ThenInclude(x => x.Reinforced)
.ToList()
.Select(x => x.GetViewModel)
.ToList();
}
public List<ShopViewModel> GetFilteredList(ShopSearchModel model)
{
if (string.IsNullOrEmpty(model.ShopName))
{
return new();
}
using var context = new PrecastConcretePlantDatabase();
return context.Shops
.Include(x => x.Reinforceds)
.ThenInclude(x => x.Reinforced)
.Where(x => x.ShopName.Contains(model.ShopName))
.ToList()
.Select(x => x.GetViewModel)
.ToList();
}
public ShopViewModel? GetElement(ShopSearchModel model)
{
if (string.IsNullOrEmpty(model.ShopName) && !model.Id.HasValue)
{
return null;
}
using var context = new PrecastConcretePlantDatabase();
return context.Shops
.Include(x => x.Reinforceds)
.ThenInclude(x => x.Reinforced)
.FirstOrDefault(x => (!string.IsNullOrEmpty(model.ShopName) && x.ShopName == model.ShopName) ||
(model.Id.HasValue && x.Id == model.Id))
?.GetViewModel;
}
public ShopViewModel? Insert(ShopBindingModel model)
{
using var context = new PrecastConcretePlantDatabase();
var newShop = Shop.Create(context, model);
if (newShop == null)
{
return null;
}
context.Shops.Add(newShop);
context.SaveChanges();
return newShop.GetViewModel;
}
public ShopViewModel? Update(ShopBindingModel model)
{
using var context = new PrecastConcretePlantDatabase();
using var transaction = context.Database.BeginTransaction();
try
{
var shop = context.Shops.FirstOrDefault(rec => rec.Id == model.Id);
if (shop == null)
{
return null;
}
shop.Update(model);
context.SaveChanges();
shop.UpdateReinforceds(context, model);
transaction.Commit();
return shop.GetViewModel;
}
catch
{
transaction.Rollback();
throw;
}
}
public ShopViewModel? Delete(ShopBindingModel model)
{
using var context = new PrecastConcretePlantDatabase();
var element = context.Shops
.Include(x => x.Reinforceds)
.FirstOrDefault(rec => rec.Id == model.Id);
if (element != null)
{
context.Shops.Remove(element);
context.SaveChanges();
return element.GetViewModel;
}
return null;
}
public bool MakeSale(IReinforcedModel model, int count)
{
using var context = new PrecastConcretePlantDatabase();
using var transaction = context.Database.BeginTransaction();
try
{
foreach (var shop in context.Shops.Include(x => x.Reinforceds).ThenInclude(x => x.Reinforced)
.Where(x => x.Reinforceds.Any(x => x.ReinforcedId == model.Id))
.ToList())
{
var reinforced = shop.ShopReinforceds[model.Id];
int min = Math.Min(reinforced.Item2, count);
if (min == reinforced.Item2)
{
shop.ShopReinforceds.Remove(model.Id);
}
else
{
shop.ShopReinforceds[model.Id] = (reinforced.Item1, reinforced.Item2 - min);
}
shop.UpdateReinforceds(context, new() { Id = shop.Id, ShopReinforceds = shop.ShopReinforceds });
count -= min;
if (count == 0)
{
context.SaveChanges();
transaction.Commit();
return true;
}
}
transaction.Rollback();
return false;
}
catch
{
transaction.Rollback();
throw;
}
}
}
}

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@ -40,6 +40,9 @@ namespace PrecastConcretePlantDatabaseImplement.Models
public virtual List<Order> Orders { get; set; } = new();
[ForeignKey("ReinforcedId")]
public virtual List<ShopReinforced> ShopReinforceds { get; set; } = new();
public static Reinforced Create(PrecastConcretePlantDatabase context, ReinforcedBindingModel model)
{
return new Reinforced()

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using PrecastConcretePlantContracts.BindingModels;
using PrecastConcretePlantContracts.ViewModels;
using PrecastConcretePlantDataModels.Models;
using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations.Schema;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace PrecastConcretePlantDatabaseImplement.Models
{
public class Shop : IShopModel
{
public int Id { get; set; }
[Required]
public string ShopName { get; set; } = string.Empty;
[Required]
public string Address { get; set; } = string.Empty;
[Required]
public DateTime DateOpening { get; set; }
[Required]
public int ReinforcedsMax { get; set; }
private Dictionary<int, (IReinforcedModel, int)>? _shopReinforceds = null;
[NotMapped]
public Dictionary<int, (IReinforcedModel, int)> ShopReinforceds
{
get
{
if (_shopReinforceds == null)
{
_shopReinforceds = Reinforceds
.ToDictionary(x => x.ReinforcedId, x => (x.Reinforced as IReinforcedModel, x.Count));
}
return _shopReinforceds;
}
}
[ForeignKey("ShopId")]
public virtual List<ShopReinforced> Reinforceds { get; set; } = new();
public static Shop Create(PrecastConcretePlantDatabase context, ShopBindingModel model)
{
return new Shop()
{
Id = model.Id,
ShopName = model.ShopName,
Address = model.Address,
DateOpening = model.DateOpening,
ReinforcedsMax = model.ReinforcedsMax,
Reinforceds = model.ShopReinforceds.Select(x => new ShopReinforced
{
Reinforced = context.Reinforceds.First(y => y.Id == x.Key),
Count = x.Value.Item2
}).ToList()
};
}
public void Update(ShopBindingModel model)
{
ShopName = model.ShopName;
Address = model.Address;
DateOpening = model.DateOpening;
ReinforcedsMax = model.ReinforcedsMax;
}
public ShopViewModel GetViewModel => new()
{
Id = Id,
ShopName = ShopName,
Address = Address,
DateOpening = DateOpening,
ReinforcedsMax = ReinforcedsMax,
ShopReinforceds = ShopReinforceds
};
public void UpdateReinforceds(PrecastConcretePlantDatabase context, ShopBindingModel model)
{
var shopReinforceds = context.ShopReinforceds.Where(rec => rec.ShopId == model.Id).ToList();
if (shopReinforceds != null && shopReinforceds.Count > 0)
{
context.ShopReinforceds.RemoveRange(shopReinforceds.Where(rec => !model.ShopReinforceds.ContainsKey(rec.ReinforcedId)));
context.SaveChanges();
foreach (var updateReinforced in shopReinforceds)
{
if (model.ShopReinforceds.ContainsKey(updateReinforced.ReinforcedId))
{
updateReinforced.Count = model.ShopReinforceds[updateReinforced.ReinforcedId].Item2;
model.ShopReinforceds.Remove(updateReinforced.ReinforcedId);
}
}
context.SaveChanges();
}
var shop = context.Shops.First(x => x.Id == Id);
foreach (var ic in model.ShopReinforceds)
{
context.ShopReinforceds.Add(new ShopReinforced
{
Shop = shop,
Reinforced = context.Reinforceds.First(x => x.Id == ic.Key),
Count = ic.Value.Item2
});
context.SaveChanges();
}
_shopReinforceds = null;
}
}
}

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@ -0,0 +1,27 @@
using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace PrecastConcretePlantDatabaseImplement.Models
{
public class ShopReinforced
{
public int Id { get; set; }
[Required]
public int ShopId { get; set; }
[Required]
public int ReinforcedId { get; set; }
[Required]
public int Count { get; set; }
public virtual Reinforced Reinforced { get; set; } = new();
public virtual Shop Shop { get; set; } = new();
}
}

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@ -23,6 +23,8 @@ namespace PrecastConcretePlantDatabaseImplement
public virtual DbSet<Reinforced> Reinforceds { set; get; }
public virtual DbSet<ReinforcedComponent> ReinforcedComponents { set; get; }
public virtual DbSet<Order> Orders { set; get; }
public virtual DbSet<Shop> Shops { set; get; }
public virtual DbSet<ShopReinforced> ShopReinforceds { set; get; }
}
}