I have this data property in an entity used by Fluidity that is saved as Json in the database. The Json comes from a Stacked Content editor that I have configured for that data property.
When I add my content to the stacked content, the previews work fine, but when I save and reload the entity (in Fluidity), the previews fail with:
{
"message": "An error has occurred.",
"exceptionMessage": "Value cannot be null.\r\nParameter name: content",
"exceptionType": "System.ArgumentNullException",
"stackTrace": " at Umbraco.Core.Mandate.That[TException](Boolean condition, Func`1 defer)\r\n at Umbraco.Core.Mandate.ParameterNotNull[T](T value, String paramName)\r\n at Our.Umbraco.StackedContent.Models.UnpublishedContent..ctor(IContent content, ServiceContext serviceContext)\r\n at Our.Umbraco.StackedContent.Web.Controllers.StackedContentApiController.GetPreviewMarkup(JObject item, Int32 pageId)\r\n at lambda_method(Closure , Object , Object[] )\r\n at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ActionExecutor.<>c__DisplayClass10.<GetExecutor>b__9(Object instance, Object[] methodParameters)\r\n at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ActionExecutor.Execute(Object instance, Object[] arguments)\r\n at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ExecuteAsync(HttpControllerContext controllerContext, IDictionary`2 arguments, CancellationToken cancellationToken)\r\n--- End of stack trace from previous location where exception was thrown ---\r\n at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n at System.Web.Http.Controllers.ApiControllerActionInvoker.<InvokeActionAsyncCore>d__0.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n at System.Web.Http.Filters.ActionFilterAttribute.<CallOnActionExecutedAsync>d__5.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n at System.Web.Http.Filters.ActionFilterAttribute.<CallOnActionExecutedAsync>d__5.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n at System.Web.Http.Filters.ActionFilterAttribute.<ExecuteActionFilterAsyncCore>d__0.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n at System.Web.Http.Filters.ActionFilterAttribute.<CallOnActionExecutedAsync>d__5.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n at System.Web.Http.Filters.ActionFilterAttribute.<CallOnActionExecutedAsync>d__5.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n at System.Web.Http.Filters.ActionFilterAttribute.<ExecuteActionFilterAsyncCore>d__0.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n at System.Web.Http.Filters.ActionFilterAttribute.<CallOnActionExecutedAsync>d__5.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n at System.Web.Http.Filters.ActionFilterAttribute.<CallOnActionExecutedAsync>d__5.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n at System.Web.Http.Filters.ActionFilterAttribute.<ExecuteActionFilterAsyncCore>d__0.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n at System.Web.Http.Filters.ActionFilterAttribute.<CallOnActionExecutedAsync>d__5.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n at System.Web.Http.Filters.ActionFilterAttribute.<CallOnActionExecutedAsync>d__5.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n at System.Web.Http.Filters.ActionFilterAttribute.<ExecuteActionFilterAsyncCore>d__0.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n at System.Web.Http.Controllers.ActionFilterResult.<ExecuteAsync>d__2.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n at System.Web.Http.Filters.AuthorizationFilterAttribute.<ExecuteAuthorizationFilterAsyncCore>d__2.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n at System.Web.Http.Filters.AuthorizationFilterAttribute.<ExecuteAuthorizationFilterAsyncCore>d__2.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n at System.Web.Http.Filters.AuthorizationFilterAttribute.<ExecuteAuthorizationFilterAsyncCore>d__2.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n at System.Web.Http.Controllers.ExceptionFilterResult.<ExecuteAsync>d__0.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n at System.Web.Http.Controllers.ExceptionFilterResult.<ExecuteAsync>d__0.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n at System.Web.Http.Dispatcher.HttpControllerDispatcher.<SendAsync>d__1.MoveNext()"
}
If I disable the preview option everything works fine and all the data in the stacked content objects is populated correctly.
The error is throw because the preview mechanism was designed to work on content pages/nodes. The PreviewModel we use has a properties for both the current Page (whether published or unpublished) and the Item which is the Stacked Content block itself.
The reason for this is to support scenarios with rendering RTEs and Macros, they rely on the current page object/value.
I'm sure a tweak could be made in the preview's controller to detect whether the request is coming from the content section or not, (and that you don't need to render RTEs or Macros).
Looking at the call to the GetPreviewMarkup method, the pageId must be being populated with a positive value. I'm not sure what Fluidity is setting for the editorState.current.id. (Side note, Fluidity is Matt's project, I haven't coded on it, not sure about the inner workings).
Key points in code to look at, (if you - or anyone else - is interested in coding it?), are here...
Thanks for all this information. It looks like Fluidity uses some fake ids like 1,2,3, ... and that's being passed as pageId to SC.
We have ended up 'hacking' the stacked content javascript service to override getPreviewMarkup. The code is actually a copy of Fluidity code with a bit of tweaking, but it works :)
(function () {
'use strict';
// Umbraco resource overrides
function formBuilderStackedContentResourceOverrides($provide) {
$provide.decorator('Our.Umbraco.StackedContent.Resources.StackedContentResources', function ($delegate) {
var isFluidity = window.location.href.indexOf('!') > 0;
var oldGetPreviewMarkup = $delegate.getPreviewMarkup;
$delegate.getPreviewMarkup = function () {
if (arguments.length >= 2 && isFluidity) { // '!' signifies a fluidity composite id
arguments[1] = -1;
}
return oldGetPreviewMarkup.apply($delegate, arguments);
};
return $delegate;
});
}
angular.module("umbraco.resources").config(['$provide', formBuilderStackedContentResourceOverrides]);
})();
Error previewing Stacked Content
I have this
dataproperty in an entity used by Fluidity that is saved as Json in the database. The Json comes from a Stacked Content editor that I have configured for thatdataproperty. When I add my content to the stacked content, the previews work fine, but when I save and reload the entity (in Fluidity), the previews fail with:If I disable the preview option everything works fine and all the data in the stacked content objects is populated correctly.
Any idea what might be wrong with those previews?
thank you.
Hi Mario,
The error is throw because the preview mechanism was designed to work on content pages/nodes. The
PreviewModelwe use has a properties for both the currentPage(whether published or unpublished) and theItemwhich is the Stacked Content block itself.The reason for this is to support scenarios with rendering RTEs and Macros, they rely on the current page object/value.
I'm sure a tweak could be made in the preview's controller to detect whether the request is coming from the content section or not, (and that you don't need to render RTEs or Macros).
Looking at the call to the
GetPreviewMarkupmethod, thepageIdmust be being populated with a positive value. I'm not sure what Fluidity is setting for theeditorState.current.id. (Side note, Fluidity is Matt's project, I haven't coded on it, not sure about the inner workings).Key points in code to look at, (if you - or anyone else - is interested in coding it?), are here...
https://github.com/umco/umbraco-stacked-content/blob/develop/src/Our.Umbraco.StackedContent/Web/UI/App_Plugins/StackedContent/js/stackedcontent.js#L103
https://github.com/umco/umbraco-stacked-content/blob/develop/src/Our.Umbraco.StackedContent/Web/Controllers/StackedContentApiController.cs#L31
Cheers,
- Lee
Hi Lee,
Thanks for all this information. It looks like Fluidity uses some fake ids like 1,2,3, ... and that's being passed as pageId to SC.
We have ended up 'hacking' the stacked content javascript service to override
getPreviewMarkup. The code is actually a copy of Fluidity code with a bit of tweaking, but it works :)is working on a reply...