egtbeamwall/EgtBEAMWALL.DbDataLayer/Controllers/ProjController.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using EgtBEAMWALL.DbDataLayer.DatabaseModels;

namespace EgtBEAMWALL.DbDataLayer.Controllers
{
   public class ProjController : IDisposable
   {
      private DatabaseContext dbCtx;

      public ProjController()
      {
         // Initialize database context
         dbCtx = new DatabaseContext();
      }

      public void Dispose()
      {
         // Clear database context
         dbCtx.Dispose();
      }
      /// <summary>
      /// Get record by ProjDbId
      /// </summary>
      /// <param name="ProjDbId"></param>
      /// <returns></returns>
      public ProjModel FindByProjDbId(int ProjDbId)
      {
         return dbCtx
             .ProjList
             .Where(x => x.ProjDbId == ProjDbId)
             .SingleOrDefault();
      }
      /// <summary>
      /// Get record by ProjId
      /// </summary>
      /// <param name="ProjId"></param>
      /// <returns></returns>
      public ProjModel FindByProjId(int ProjId)
      {
         return dbCtx
             .ProjList
             .Where(x => x.ProjId == ProjId)
             .SingleOrDefault();
      }
      /// <summary>
      /// Get paginated data from DB (ASC ordered)
      /// </summary>
      /// <param name="ProjDbIdStart"></param>
      /// <param name="numRecord"></param>
      /// <returns></returns>
      public List<ProjModel> GetPaginatedAsc(int ProjDbIdStart, int numRecord)
      {
         int numEnd = ProjDbIdStart - numRecord;
         // check numEnd
         if (numEnd < 0)
            numEnd = 0;
         // retrieve
         return dbCtx
             .ProjList
             .Where(x => x.ProjDbId <= ProjDbIdStart)
             .OrderBy(x => x.ProjDbId)
             .Take(numRecord)
             .ToList();
      }
      /// <summary>
      /// Get paginated data from DB (DESC ordered)
      /// </summary>
      /// <param name="PartDbIdStart"></param>
      /// <param name="numRecord"></param>
      /// <returns></returns>
      public List<ProjModel> GetPaginatedDesc(int PartDbIdStart, int numRecord)
      {
         int numEnd = PartDbIdStart - numRecord;
         // check numEnd
         if (numEnd < 0)
            numEnd = 0;
         // retrieve
         return dbCtx
             .ProjList
             .Where(x => x.ProjDbId <= PartDbIdStart)
             .OrderByDescending(x => x.ProjDbId)
             .Take(numRecord)
             .ToList();
      }
      /// <summary>
      /// Get filtered data by ProjectId (ASC ordered)
      /// </summary>
      /// <param name="ProdDbId"></param>
      /// <returns></returns>
      public List<ProjModel> GetByProdAsc(int ProdDbId)
      {
         // retrieve
         return dbCtx
             .ProjList
             .Where(x => x.ProdDbId == ProdDbId)
             .OrderBy(x => x.ProdDbId)
             .ToList();
      }
      /// <summary>
      /// Get filtered data by ProjectId (DESC ordered)
      /// </summary>
      /// <param name="ProdDbId"></param>
      /// <returns></returns>
      public List<ProjModel> GetByProdDesc(int ProdDbId)
      {
         // retrieve
         return dbCtx
             .ProjList
             .Where(x => x.ProdDbId == ProdDbId)
             .OrderByDescending(x => x.ProdDbId)
             .ToList();
      }

      /// <summary>
      /// Create record on DB
      /// </summary>
      /// <param name="newProjId"></param>
      /// <param name="newBTLFileName"></param>
      /// <returns></returns>
      public ProjModel Create(int newProjId, string newBTLFileName)
      {
         ProjModel newProj = new ProjModel() { ProjId=newProjId, BTLFileName=newBTLFileName };

         try
         {
            // Add to database
            dbCtx.ProjList.Add(newProj);
            // Commit changes
            dbCtx.SaveChanges();
         }
         catch
         { }

         return newProj;
      }


   }
}