StockMan/StockManMVC/Controllers/LocationsController.cs

using System;
using System.Collections.Generic;
using System.Data;
using System.Data.Entity;
using System.Linq;
using System.Net;
using System.Web;
using System.Web.Mvc;
using StockManMVC.Models;
using X.PagedList;

namespace StockManMVC.Controllers
{
    public class LocationsController : Controller
    {
        private StockManEntities db = new StockManEntities();

        // vedere questi link x completare:
        // https://www.asp.net/mvc/overview/getting-started/getting-started-with-ef-using-mvc/sorting-filtering-and-paging-with-the-entity-framework-in-an-asp-net-mvc-application

        // GET: Locations/LocTypeID
        public ActionResult Index(string LocTypeID, string SearchVal, string SortOrd, int? page, int? pageSize)
        {
            // fix campi nulli
            if (LocTypeID == null) LocTypeID = "";
            if (SearchVal == null) SearchVal = "";
            if (SortOrd == null) SortOrd = "";
            if (page == null) page = 1;
            if (pageSize == null) pageSize = 10;
            // salvo in model valori
            ViewBag.LocTypeDD = new SelectList(db.LocType, "ID", "Descr", LocTypeID);
            ViewBag.LocTypeID = LocTypeID;
            ViewBag.SearchVal = SearchVal;
            ViewBag.SortOrd = SortOrd;
            ViewBag.page = page;
            ViewBag.pageSize = pageSize;
            return View();
        }


        // GET: Location/ListByType/LocTypeID
        public ActionResult ListByType(string LocTypeID, string SearchVal, string SortOrd, int? page, int? pageSize)
        {
            // gestione selettore dim pagina
            if (page == null) page = 1;
            if (pageSize == null) pageSize = 10;
            ViewBag.pageSize = pageSize;
            var pageOptions = new[] { "5", "10", "25", "50", "100" };
            ViewBag.PageSizeDD = new SelectList(pageOptions, pageSize.ToString());

            if (LocTypeID == null) LocTypeID = "";
            if (SearchVal == null) SearchVal = "";
            if (SortOrd == null) SortOrd = "";
            ViewBag.LocTypeID = LocTypeID;
            ViewBag.SearchVal = SearchVal;
            ViewBag.SortOrd = SortOrd;
            ViewBag.DescrSortParm = String.IsNullOrEmpty(SortOrd) ? "Descr_desc" : "";
            ViewBag.LocTypeSortParm = SortOrd == "LocType" ? "LocType_desc" : "LocType";
            var CurrLocations = db.Location.Where(s => s.ID != "");
            if (LocTypeID.ToString() != "")
            {
                CurrLocations = db.Location.Where(s => s.LocTypeID == LocTypeID);
            }
            if (SearchVal != "")
            {
                CurrLocations = CurrLocations.Where(s => s.Descr.Contains(SearchVal)); // || s.LocType.Descr.Contains(SearchVal)
            }
            // ora verifico ordinamento...
            switch (SortOrd)
            {
                case "Descr_desc":
                    CurrLocations = CurrLocations.OrderByDescending(s => s.Descr);
                    break;
                case "LocType":
                    CurrLocations = CurrLocations.OrderBy(s => s.LocType.Descr);
                    break;
                case "LocType_desc":
                    CurrLocations = CurrLocations.OrderByDescending(s => s.LocType.Descr);
                    break;
                default:
                    CurrLocations = CurrLocations.OrderBy(s => s.Descr);
                    break;
            }
            // ritorno modello paginato!
            var pagedData = CurrLocations.ToPagedList((int)page, (int)pageSize);
            return PartialView("_ListByType", pagedData);
        }

        // GET: Locations/Create (mode=std|full, opzionale)
        public ActionResult Create(string mode)
        {
            ViewBag.LocTypeID = new SelectList(db.LocType, "ID", "Descr");
            if (mode == null)
            {
                mode = "full";
            }
            if (mode == "std")
            {
                return PartialView();
            }
            else
            {
                return View();
            }
        }

        // POST: Locations/Create
        // To protect from overposting attacks, please enable the specific properties you want to bind to, for 
        // more details see http://go.microsoft.com/fwlink/?LinkId=317598.
        [HttpPost]
        [ValidateAntiForgeryToken]
        public ActionResult Create([Bind(Include = "Descr,LocTypeID")] Location location)
        {
            // ID deve essere calcolato a partire dal LocTypeID + contatore 6 cifre... chiamo la stored x recuperare nuovo contatore
            int nextNum = 0;
            using (var ctx = new StockManEntities())
            {
                // esegue stored procedure come function, recuperando nuovo ID creato...
                var newCounter = ctx.stp_Counters_getNext(location.LocTypeID).ToList<CountersList>();
                nextNum = newCounter[0].NextNum;
            }
            // costruisco nuovo location ID univoco
            location.ID = string.Format("{0}{1:000000}", location.LocTypeID, nextNum);
            // ora devo eliminare gli errori pendenti x il campo ID
            ModelState["ID"].Errors.Clear();
            // va ri-validato il modello
            UpdateModel(location);
            // controllo se modello dati sia ok..
            if (ModelState.IsValid)
            {
                db.Location.Add(location);
                db.SaveChanges();
                return RedirectToAction("Index");
            }

            ViewBag.LocTypeID = new SelectList(db.LocType, "ID", "Descr", location.LocTypeID);
            return View(location);
        }

        // GET: Locations/Edit/5 (mode=std|full, opzionale)
        public ActionResult Edit(string id, string mode)
        {
            if (mode == null)
            {
                mode = "full";
            }
            if (id == null)
            {
                return new HttpStatusCodeResult(HttpStatusCode.BadRequest);
            }
            Location location = db.Location.Find(id);
            if (location == null)
            {
                return HttpNotFound();
            }
            ViewBag.LocTypeID = new SelectList(db.LocType, "ID", "Descr", location.LocTypeID);
            if (mode == "std")
            {
                return PartialView(location);
            }
            else
            {
                return View(location);
            }
        }

        // POST: Locations/Edit/5
        // To protect from overposting attacks, please enable the specific properties you want to bind to, for 
        // more details see http://go.microsoft.com/fwlink/?LinkId=317598.
        [HttpPost]
        [ValidateAntiForgeryToken]
        public ActionResult Edit([Bind(Include = "ID,Descr,LocTypeID")] Location location)
        {
            // recupero vecchi valori...
            Location locationOld = db.Location.Find(location.ID);
            // imposto valori vecchi x campi "bloccati" (tipo locazione...)
            location.LocTypeID = locationOld.LocTypeID;
            // ora devo eliminare gli errori pendenti x il campo ID 
            ModelState["LocTypeID"].Errors.Clear();
            // va ri-validato il modello 
            UpdateModel(location);
            // verifico!
            if (ModelState.IsValid)
            {
                // sblocco vecchio item x non fare conflitto
                db.Entry(locationOld).State = EntityState.Detached;
                // indico che devo salvare nuovo!
                db.Entry(location).State = EntityState.Modified;
                db.SaveChanges();
                return RedirectToAction("Index");
            }
            ViewBag.LocTypeID = new SelectList(db.LocType, "ID", "Descr", location.LocTypeID);
            return View(location);
        }

        // GET: Locations/Delete/5 (mode=std|full, opzionale)
        public ActionResult Delete(string id, string mode)
        {
            if (mode == null)
            {
                mode = "full";
            }
            if (id == null)
            {
                return new HttpStatusCodeResult(HttpStatusCode.BadRequest);
            }
            Location location = db.Location.Find(id);
            if (location == null)
            {
                return HttpNotFound();
            }
            if (mode == "std")
            {
                return PartialView(location);
            }
            else
            {
                return View(location);
            }
        }

        // POST: Locations/Delete/5
        [HttpPost, ActionName("Delete")]
        [ValidateAntiForgeryToken]
        public ActionResult DeleteConfirmed(string id)
        {
            Location location = db.Location.Find(id);
            db.Location.Remove(location);
            db.SaveChanges();
            return RedirectToAction("Index");
        }

        protected override void Dispose(bool disposing)
        {
            if (disposing)
            {
                db.Dispose();
            }
            base.Dispose(disposing);
        }
    }
}