BaseService BL projektbe

2025-04-03 12:06:40 +02:00
parent a97c944f12
commit d5e11bc2e4
5 changed files with 169 additions and 25 deletions
@@ -0,0 +1,147 @@
+using AutoMapper;
+using Microsoft.EntityFrameworkCore;
+using Serilog;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Linq.Expressions;
+using System.Text;
+using System.Threading.Tasks;
+using WorkFlowCheck.DL;
+
+namespace WorkFlowCheck.BL.Services
+{
+    public class BaseService
+
+    {
+        public readonly AppDbContext _dbContext;
+        public readonly IMapper _mapper;
+
+        public BaseService(AppDbContext db_dbContext, IMapper mapper)
+        {
+            _dbContext = db_dbContext;
+            _mapper = mapper;
+        }
+
+        public async Task<bool> DeleteEntityByIdAsync<T>(int id) where T : class
+        {
+            try
+            {
+                var entity = await _dbContext.Set<T>().FindAsync(id);
+
+                if (entity == null)
+                    return false;
+                _dbContext.Set<T>().Remove(entity);
+                await _dbContext.SaveChangesAsync();
+
+                return true;
+            }
+            catch (Exception ex)
+            {
+                Log.Error($"Hiba történt a törlés során: {ex.Message}");
+                return false;
+            }
+        }
+        public async Task<T?> GetEntityByIdAsync<T>(int id) where T : class
+        {
+            try
+            {
+                var entity = await _dbContext.Set<T>().FindAsync(id);
+                return entity;
+            }
+            catch (Exception ex)
+            {
+                Log.Error($"Hiba történt a lekérdezés során: {ex.Message}");
+                return null;
+            }
+        }
+        public async Task<List<TEntity>> GetEntityByFilterAsync<TEntity, TFilter>(TFilter filter) where TEntity : class where TFilter : class
+        {
+            try
+            {
+                IQueryable<TEntity> query = _dbContext.Set<TEntity>();
+
+
+                foreach (var property in typeof(TFilter).GetProperties())
+                {
+                    var value = property.GetValue(filter);
+                    if (value != null)
+                    {
+                        var parameter = Expression.Parameter(typeof(TEntity), "x");
+                        var member = Expression.Property(parameter, property.Name);
+                        var constant = Expression.Constant(value);
+                        var equal = Expression.Equal(member, constant);
+                        var lambda = Expression.Lambda<Func<TEntity, bool>>(equal, parameter);
+
+                        query = query.Where(lambda);
+                    }
+                }
+
+                // Adatok lekérdezése
+                return await query.ToListAsync();
+            }
+            catch (Exception ex)
+            {
+                Log.Error($"Hiba történt a lekérdezés során: {ex.Message}");
+                return new List<TEntity>();
+            }
+        }
+        public async Task<PagedResult<TEntity>> GetPagedEntityByFilterAsync<TEntity, TFilter>(TFilter filter, int pageNumber, int pageSize) where TEntity : class where TFilter : class
+        {
+            try
+            {
+                
+
+                // Az IQueryable típusú lista létrehozása
+                IQueryable<TEntity> query = _dbContext.Set<TEntity>();
+
+                // Dinamikus szűrés a filter tulajdonságai alapján
+                foreach (var property in typeof(TFilter).GetProperties())
+                {
+                    var value = property.GetValue(filter);
+                    if (value != null)
+                    {
+                        var parameter = Expression.Parameter(typeof(TEntity), "x");
+                        var member = Expression.Property(parameter, property.Name);
+                        var constant = Expression.Constant(value);
+                        var equal = Expression.Equal(member, constant);
+                        var lambda = Expression.Lambda<Func<TEntity, bool>>(equal, parameter);
+                        query = query.Where(lambda);
+                    }
+                }
+
+                // Teljes rekordok száma a szűrő után
+                int totalCount = await query.CountAsync();
+
+                // Lapozás alkalmazása
+                var items = await query
+                    .Skip((pageNumber - 1) * pageSize)
+                    .Take(pageSize)
+                    .ToListAsync();
+
+                // Lapozási eredmény összerakása
+                return new PagedResult<TEntity>
+                {
+                    Items = items,
+                    TotalCount = totalCount,
+                    PageNumber = pageNumber,
+                    PageSize = pageSize
+                };
+            }
+            catch (Exception ex)
+            {
+                Console.WriteLine($"Hiba történt a lekérdezés során: {ex.Message}");
+                return new PagedResult<TEntity>();
+            }
+        }
+
+    }
+    public class PagedResult<TEntity>
+    {
+        public List<TEntity> Items { get; set; } = new List<TEntity>();
+        public int TotalCount { get; set; }
+        public int PageNumber { get; set; }
+        public int PageSize { get; set; }
+    }
+
+}