поправила привязку симптомов и лекарств. теперь она хотя бы есть :/

Polyclinic/PolyclinicWebAppImplementer/Controllers/CoursesController.cs

@@ -84,7 +84,7 @@ namespace PolyclinicWebAppImplementer.Controllers
                     CourseViewModel = obj,
                     Diagnoses = _diagnoseLogic.ReadList().Select(x => (x, obj.CourseDiagnoses.ContainsKey(x.Id))).ToList()
                 };
-                ViewData["Title"] = "Редактировать симптом";
+                ViewData["Title"] = "Редактировать курс";
                 return View("CourseForm", model);
             }
             else

Polyclinic/PolyclinicWebAppSuretor/Controllers/HomeController.cs

@@ -504,20 +504,7 @@ namespace PolyclinicWebAppSuretor.Controllers
             return RedirectToAction("Procedures");
         }
 
-        public IActionResult AddSymptomToMedicament(AddSymptomToMedicamentModel model)
+       
-        {
-            var currentUser = LoginManager.LogginedUser;
-            if (currentUser == null)
-            {
-                return RedirectToAction("Login", "Home");
-            }
-            model = new()
-            {
-                Medicaments = _medicamentLogic.ReadList(null),
-                Symptoms = _symptomLogic.ReadList(null)
-            };
-            return View(model);
-        }
 
         public IActionResult ListCoursesByProcedures()
         {
@@ -657,6 +644,70 @@ namespace PolyclinicWebAppSuretor.Controllers
             }
         }
 
+        [HttpGet]
+        [HttpPost]
+        public IActionResult AddSymptomToMedicament(AddSymptomToMedicamentModel model)
+        {
+            var currentUser = LoginManager.LogginedUser;
+            if (currentUser == null)
+            {
+                return RedirectToAction("Login", "Home");
+            }
+
+            var medicaments = _medicamentLogic.ReadList(null);
+            var symptomes = _symptomLogic.ReadList();
+            var linkedMedicaments = medicaments
+                    .Where(x => x.SymptomId != null)
+                    .Select(x => (x, _symptomLogic.ReadElement(new SymptomSearchModel { Id = x.SymptomId }))).ToList();
+
+            if (HttpContext.Request.Method == "GET")
+            {
+                model = new()
+                {
+                    Medicaments = medicaments,
+                    Symptoms = symptomes,
+                    LinkedMedicaments = linkedMedicaments
+                };
+
+                return View(model);
+            }
+            else
+            {
+                var medicament = _medicamentLogic.ReadElement(new MedicamentSearchModel { Id = model.MedicamentId });
+                var medicamentBindingModel = new MedicamentBindingModel
+                {
+                    Id = medicament.Id,
+                    Name = medicament.Name,
+                    Comment = medicament.Comment,
+                    SymptomId = model.SymptomId,
+                    ProcedureId = medicament.ProcedureId
+                };
+                _medicamentLogic.Update(medicamentBindingModel);
+                return RedirectToAction("AddSymptomToMedicament");
+            }
+        }
+        [HttpPost]
+        public IActionResult UnLinkCourse(int id)
+        {
+            var currentUser = LoginManager.LogginedUser;
+            if (currentUser == null)
+            {
+                return RedirectToAction("Login", "Home");
+            }
+
+            var medicament = _medicamentLogic.ReadElement(new MedicamentSearchModel { Id = id });
+            var medicamentBindingModel = new MedicamentBindingModel
+            {
+                Id = medicament.Id,
+                Name = medicament.Name,
+                Comment = medicament.Comment,
+                //SymptomId = null,
+                ProcedureId = medicament.ProcedureId
+            };
+            _medicamentLogic.Update(medicamentBindingModel);
+            return RedirectToAction("AddSymptomToMedicament");
+        }
+
         [ResponseCache(Duration = 0, Location = ResponseCacheLocation.None, NoStore = true)]
         public IActionResult Error()
         {

Polyclinic/PolyclinicWebAppSuretor/Models/AddSymptomToMedicamentModel.cs

@@ -6,5 +6,8 @@ namespace PolyclinicWebAppSuretor.Models
     {
         public List<MedicamentViewModel> Medicaments { get; set; } = new();
         public List<SymptomViewModel> Symptoms { get; set; } = new();
+        public int? MedicamentId { get; set; }
+        public int? SymptomId { get; set;}
+        public List<(MedicamentViewModel medicament, SymptomViewModel symptom)> LinkedMedicaments { get; set; } = new();
     }
 }

Polyclinic/PolyclinicWebAppSuretor/Views/Home/AddSymptomToMedicament.cshtml

@@ -44,3 +44,28 @@
         </div>
     </div>
 </form>
+
+<div class="col">
+    <h4>Привязанные симптомы</h4>
+    <table>
+        <tr>
+            <th>Лекарство</th>
+            <th>Симптом</th>
+            <th></th>
+        </tr>
+        @foreach (var item in Model.LinkedMedicaments)
+        {
+            <tr>
+                <td>#@item.medicament.Id @item.medicament.Name</td>
+                <td>#@item.symptom.Id @item.symptom.Name</td>
+                <td>
+                    <form method="post" asp-action="UnLinkCourse" asp-route-id="@item.medicament.Id">
+                        <button class="btn btn-danger btm-sm" type="submit">
+                            Отвязать
+                        </button>
+                    </form>
+                </td>
+            </tr>
+        }
+    </table>
+</div>

Polyclinic/PolyclinicWebAppSuretor/Views/Shared/_Layout.cshtml

@@ -55,7 +55,7 @@
                     {
                         <div class="d-flex align-items-center">
                             @Html.RouteLink(LoginManager.LogginedUser.FIO, new { controller = "Home", action = "Privacy" }, new { @title = "Личный кабинет" })
-                            <form class="ms-3" method="post" asp-action="Logout" asp-controller="User">
+                            <form class="ms-3" method="post" asp-action="Logout" asp-controller="Home">
                                 <button class="btn btn-secondary" type="submit">Выйти</button>
                             </form>
                         </div>