fix: umbraco 15 issues

Author: glitchedmob

backend/src/MethodConf.Cms/Controllers/SessionFeedbackController.cs

@@ -20,7 +20,7 @@ public async Task<ActionResult<SessionFeedbackResponseDto>> Create(Guid sessionI
 
         return result switch
         {
-            { IsFailed: true } when result.Errors.Any(e => e is InvalidEntityIdError or IneligibleForFeedback) => BadRequest(result.Errors),
+            { IsFailed: true } when result.Errors.Any(e => e is InvalidEntityIdError) => BadRequest(result.Errors),
             { IsSuccess: true } => Ok(mapper.Map<SessionFeedbackResponseDto>(result.Value)),
             _ => StatusCode(500)
         };

backend/src/MethodConf.Cms/Services/ConferenceScheduleService.cs

@@ -18,7 +18,7 @@ public Result<ConferenceSchedule> GetSchedule(Guid conferenceId)
             return Result.Fail(new InvalidEntityIdError(conferenceId.ToString()));
         }
 
-        var sessions = conference.FirstChild<Sessions>()?.Children.ToArray() ?? [];
+        var sessions = conference.FirstChild<Sessions>()?.Children<Umbraco.Cms.Core.Models.PublishedContent.IPublishedContent>()?.ToArray() ?? [];
 
         var scheduleItems = new List<ScheduleItem>();
 

backend/src/MethodConf.Cms/Views/Partials/blockgrid/items.cshtml

@@ -12,7 +12,7 @@
             class="umb-block-grid__layout-item"
             data-content-element-type-alias="@item.Content.ContentType.Alias"
             data-content-element-type-key="@item.Content.ContentType.Key"
-            data-element-udi="@item.ContentUdi"
+            data-element-key="@item.ContentKey"
             data-col-span="@item.ColumnSpan"
             data-row-span="@item.RowSpan"
             style=" --umb-block-grid--item-column-span: @item.ColumnSpan; --umb-block-grid--item-row-span: @item.RowSpan; ">

backend/src/MethodConf.Cms/Views/Partials/blocklist/default.cshtml

@@ -5,7 +5,7 @@
 <div class="umb-block-list">
     @foreach (var block in Model)
     {
-        if (block?.ContentUdi == null) { continue; }
+        if (block?.Content == null) { continue; }
         var data = block.Content;
 
         @await Html.PartialAsync("blocklist/Components/" + data.ContentType.Alias, block)