re-fixes the command creation

A pro now may have specified several activities;
Since, the query creation was broken

Yavsc/Controllers/CommandController.cs

@@ -91,19 +91,23 @@ namespace Yavsc.Controllers
         /// </summary>
         /// <param name="id"></param>
         /// <returns></returns>
-        public IActionResult Create(string id)
+        public IActionResult Create(string id, string activityCode)
         {
             if (string.IsNullOrWhiteSpace(id))
                 throw new InvalidOperationException(
                     "This method needs a performer id"
                 );
+             if (string.IsNullOrWhiteSpace(activityCode))
+                throw new InvalidOperationException(
+                    "This method needs an activity code"
+                );
             var pro = _context.Performers.Include(
                 x => x.Performer).FirstOrDefault(
                 x => x.PerformerId == id
             );
             if (pro == null)
                 return HttpNotFound();
-
+            ViewBag.Activity =  _context.Activities.FirstOrDefault(a=>a.Code == activityCode);
             ViewBag.GoogleSettings = _googleSettings;
             var userid = User.GetUserId();
             var user = _userManager.FindByIdAsync(userid).Result;

Yavsc/Views/Command/Create.cshtml

@@ -1,6 +1,6 @@
 @model BookQuery
 @{
-    ViewData["Title"] = SR["Book "+Model.PerformerProfile.ActivityCode];
+    ViewData["Title"] = SR["Book "+ViewBag.Activity.Code];
 }
 @section header{
     @{ await Html.RenderPartialAsync("_ValidationScriptsPartial"); }

Yavsc/Views/FrontOffice/Book.cshtml

@@ -10,6 +10,7 @@
     await Html.RenderPartialAsync("PerformerProfile", profile) ; 
     <form action="~/Command/Create" >
         <input type="hidden" name="id" value="@profile.PerformerId" />
+        <input type="hidden" name="activityCode" value="@ViewBag.Activity.Code" />
              <input type="submit" value="@SR["Book "+ViewBag.Activity.Code]"/>
     </form>
 }