nullreference exception icomponent imacrorenderer

Igor 3 posts 73 karma points

Feb 14, 2020 @ 07:00

Using Umbraco And Getting Started

Umbraco 8

Hello i have a problem..

my code

Initialize TaskExecuting

[RuntimeLevel(MinLevel = RuntimeLevel.Run)]
public class SubscribeComposer : IUserComposer {
    public void Compose(Composition composition) {
      composition.Components().Append<TaskExecutingComponent>();
    }
}

TaskExecuting class

public class TaskExecutingComponent : IComponent
{
  ...
    public TaskExecutingComponent(IProfilingLogger logger, IMacroRenderer macroRenderer, IUmbracoDatabaseService dataBaseService, IScopeProvider scopeProvider, UmbracoMapper umbracoMapper, SubscribeConfiguration config, IMacroService macroService, IPublishedSnapshotAccessor publishedSnapshotAccessor) {
       ...
    }

    public void Initialize() {
        int delayBeforeWeStart = 60000;
        int howOftenWeRepeat = 60000; 

        var task = new Task(_sharePriceRunnerRunner,
            delayBeforeWeStart,
            howOftenWeRepeat,
            _logger,
            _dataBaseService,
            _scopeProvider,
            _macroRenderer,
            _umbracoMapper,
            _config,
            _macroService,
            _publishedSnapshotAccessor);

        _sharePriceRunnerRunner.TryAdd(task);
    }

    public void Terminate()
    {
    }
}

And with problem moment

public class Task : RecurringTaskBase {
    ...

    public Task(IBackgroundTaskRunner<RecurringTaskBase> runner, int delayBeforeWeStart, int howOftenWeRepeat, IProfilingLogger logger, IUmbracoDatabaseService dataBaseService, IScopeProvider scopeProvider, IMacroRenderer macroRenderer, UmbracoMapper umbracoMapper, SubscribeConfiguration config, IMacroService macroService, IPublishedSnapshotAccessor publishedSnapshotAccessor)
        : base(runner, delayBeforeWeStart, howOftenWeRepeat) {
        _...
    }

    public override bool PerformRun() {
            var PageId = 999; // This page is present
        var macro = _macroService.GetById(task.MacrosId);
        var macro_params = _umbracoMapper.Map<IEnumerable<MacroParameter>>(macro);
        var maxro_param_val = new Dictionary<string, object>();

    maxro_param_val.Add("getFrom", DateTime.Now.Date());

        var content_val = _publishedSnapshotAccessor.PublishedSnapshot.Content.GetById(PageId);
        var macro_props = maxro_param_val.ToDictionary(
            x => x.Key,
            i => i.Value is string ? HttpUtility.HtmlDecode(i.Value.ToString()) : i.Value);

        var result = _macroRenderer.Render(macro.Alias, content_val, macro_props).GetAsText();

        return true;
    }

And Exception

System.NullReferenceException: 
in _publishedSnapshotAccessor.PublishedSnapshot.Content.GetById(_config.SubscribeMessage.SubscribePageId.Value);

if i use other methods for recive Content i have problem with content in _macroRenderer.Render

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Igor 3 posts 73 karma points

Feb 16, 2020 @ 06:08

I solved my problem, now I have a new problem)

Solved how render macro in background task

first im use

(...,IUmbracoContextFactory umbracoContextFactory)

when redid standard methods

using (var umbracoContextReference = _umbracoContextFactory.EnsureUmbracoContext()) {
var content = umbracoContextReference.UmbracoContext.Content.GetById(999);
using (var controller = new MyPartialViewMacroController(macro_model, content)) {
    var route_vals = new RouteData();
    route_vals.Values.Add("controller", "PartialViewMacro");
    route_vals.Values.Add("action", "Index");
    //routeVals.DataTokens.Add(Core.UmbracoContextDataToken, umbCtx); //required for UmbracoViewPage
    if (umbracoContextReference.UmbracoContext.HttpContext == null)
        throw new NullReferenceException("HttpContext is null");
    var request = new RequestContext(umbracoContextReference.UmbracoContext.HttpContext, route_vals);
    //controller.ViewData = viewContext.ViewData;
    controller.ControllerContext = new ControllerContext(request, controller);

    //call the action to render
    result = controller.RenderViewResultAsString(controller.Index());
}

}

Ok and incapsulate umbraco class PartialViewMacroController and rename to MyPartialViewMacroController

))

Ok now i have problem in cshtml....

var startnode = Umbraco.Content(startnode_id);

System.NullReferenceException: 
LightInject.Web.PerWebRequestScopeManager.GetOrAddScope()
DynamicMethod(Object[] )
Umbraco.Core.FactoryExtensions.GetInstance[T](IFactory factory)
Umbraco.Web.Runtime.WebInitialComposer.<>c.<C ompose>b__0_6(IFactory factory)
Umbraco.Core.FactoryExtensions.GetInstance[T](IFactory factory)
Umbraco.Web.Mvc.UmbracoViewPage`1.get_Umbraco()

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Igor 3 posts 73 karma points

Feb 16, 2020 @ 12:28

Ok i solved all my probmels ....

in schtml need use it for

UmbracoContext.Content.GetById(...);

not

Umbraco.Content(...);

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Nullreference exception IComponent IMacroRenderer