deprecate Product in favour of SimilarProduct

Areas/Admin/Controllers/ProductController.cs

@@ -65,7 +65,13 @@ namespace pwt_0x01_ng.Areas.Admin.Controllers
 			if (item != null)
 			{
 				IList<Similar> s = await dbctx.Similar.Where(p_item => p_item.prod_id == id).ToListAsync();
-				IList<Product> similar = product.Products;
+				IList<SimilarProduct> similar = new List<SimilarProduct>();
+				foreach (var prod in product.Products) {
+					SimilarProduct sp = new SimilarProduct();
+					sp.id = prod.id;
+					sp.Selected = prod.Selected;
+					similar.Add(sp);
+				}
 				foreach (var s_item in s)
 				{
 					var prodpls = await dbctx.Product.Where(p_item => p_item.id == s_item.prod_id).FirstOrDefaultAsync();
@@ -78,9 +84,7 @@ namespace pwt_0x01_ng.Areas.Admin.Controllers
 						}
 					}
 				}
-				if(similar != null){
+				item.Similar = similar;
-					item.Similar = similar;
-				}
 				ViewData["ImageSrc"] = new SelectList(dbctx.Product, "ImageSrc", item.ImageSrc);
 				return View(item);
 			}
@@ -109,18 +113,28 @@ namespace pwt_0x01_ng.Areas.Admin.Controllers
 						item.ImageSrc = product.ImageSrc;
 					}
 
-					IList<Product> p = product.Similar;
+					if (product.Similar != null) {
-					if(p != null){
+						IList<SimilarProduct> similar = new List<SimilarProduct>();
-						foreach (var prod in p)
+						foreach (var prod in product.Similar) {
-						{
+							SimilarProduct sp = new SimilarProduct();
-							if(prod.Selected){
+							sp.id = prod.id;
-								Similar s = new Similar();
+							sp.Selected = prod.Selected;
-								s.prod_id = item.id;
+							similar.Add(sp);
-								s.similar_prod_id = prod.id;
+						}
-								var res = dbctx.Similar.Add(s);
+						if(similar.Count > 0){
-							} else {
+							foreach (var prod in similar)
-								Similar s = dbctx.Similar.Where(p_item => p_item.prod_id == item.id && p_item.similar_prod_id != prod.id).FirstOrDefault();
+							{
-								var res = dbctx.Similar.Remove(s);
+								if(prod.Selected){
+									Similar s = new Similar();
+									s.prod_id = item.id;
+									s.similar_prod_id = prod.id;
+									var res = dbctx.Similar.Add(s);
+								} else {
+									Similar s = dbctx.Similar.Where(p_item => p_item.prod_id == item.id && p_item.similar_prod_id != prod.id).FirstOrDefault();
+									if (s != null) {
+										dbctx.Similar.Remove(s);
+									}
+								}
 							}
 						}
 					}

Areas/Admin/Views/Product/edit-create_part.cshtml

@@ -1,9 +1,10 @@
 @using pwt_0x01_ng.Areas.Admin.Controllers;
 @model Product
 @{
-	IList<Product> similar,products;
+	IList<Product> products;
-	similar = new List<Product>();
+	IList<SimilarProduct> similar;
 	products = (IList<Product>)ViewData["prods"];
+	similar = new List<SimilarProduct>();
 	if((!String.IsNullOrEmpty(ViewBag.Action))||(!String.IsNullOrWhiteSpace(ViewBag.Action)))
 	{
 	<div class="row">

Models/Product.cs

@@ -24,7 +24,7 @@ namespace pwt_0x01_ng.Models
 		[StringLength(50, ErrorMessage = "{0} length must be between {2} and {1}.", MinimumLength = 1)]
 		public string ImageAlt { get; set; }
 		[NotMapped]
-		public IList<Product> Similar { get; set; }
+		public IList<SimilarProduct> Similar { get; set; }
 		[NotMapped]
 		public bool Selected { get; set; }
 	}

Models/Similar.cs

@@ -4,12 +4,15 @@ using System.ComponentModel.DataAnnotations.Schema;
 namespace pwt_0x01_ng.Models
 {
 	[Table(nameof(Similar))]
-	public class Similar : Entity
+	public class Similar
 	{
+		[Required]
+		[Key]
+		public int id { get; set; }
 		[Required]
 		public int prod_id { get; set; }
 		[ForeignKey(nameof(Product))]
 		[Required]
 		public int similar_prod_id { get; set; }
 	}
-}
+}

Models/SimilarViewModel.cs

@@ -0,0 +1,9 @@
+using System.Collections.Generic;
+
+namespace pwt_0x01_ng.Models
+{
+	public class SimilarViewModel
+	{
+		public IList<Similar> Similar { get; set; }
+	}
+}