UrlResolver.Current.Route returns null when in backoffice

Five New Optimizely Certifications are Here! Validate your expertise and advance your career with our latest certification exams. Click here to find out more

AI OnAI Off

Home / Forums / Developers (Main Products) Forum / CMS 7.5 - 11 /

UrlResolver.Current.Route returns null when in backoffice

Carl S

Vote:

Hi,

I'm using a UrlBuilder extension to handle some images. However the UrlResolver.Current.Route returns null when I preview in the backoffice.

The target.Path in backoffice is "/EPiServer/CMS/Content/globalassets/en/about_us_1100_1620.jpg,,50926" - but I'm guessing this is already a contentreference?

The target.Path outside backoffice is "/globalassets/about_us_1100_1620.jpg" and this have no problem converting to a contentreference.

How can I fix this so I can use it both in backoffice and "outside"?

One way is to split the target.Path on ',' and use "new ContentReference(int.Parse(splittedValue[1]))" but that seems ugly. Any nicer solutions?

if (target == null || target.IsEmpty)
	throw new ArgumentNullException(nameof(target));

var content = UrlResolver.Current.Route(new UrlBuilder(target.Path));
if (content == null) 
	throw new ArgumentNullException(nameof(target));

if(ContentReference.IsNullOrEmpty(content.ContentLink))
	throw new ArgumentNullException(nameof(target));

ImageFile imageData;
try
{
	imageData = ContentRepository.Service.Get<ImageFile>(content.ContentLink);
}
catch (TypeMismatchException)
{
	throw new ArgumentNullException(nameof(target));
}

return imageData;

#206401

Aug 20, 2019 8:15

Jake Jones

Vote:

Hi Carl,

I think I need a little more context to work out what's going on here.

What is target? I feel like it must be a UrlBuilder based on the Path and IsEmpty properties. Also, presumably the editor is selecting this image in the CMS? What property are you using—a ContentReference, a Url, a LinkItemCollection or something else?

#206415

Aug 20, 2019 17:20

Carl S

Vote:

Hi Jake,

Yes, UrlBuilder and a ContentReference.

// Carl

#206428

Aug 21, 2019 6:54

Jake Jones

Vote:

Is there a reason you don't just get the ImageFile from the the ContentReference directly? This seems a very roundabout way to get there.

#206450

Aug 21, 2019 15:18

Carl S

Vote:

Yes. I use ImageResizer:

@Html.ResizeImage(Model.VerticalImage.Image).Width(700).Height(1031).FitMode(FitMode.Crop)

And I have to use my code as an UrlBuilder extension.

#206451

Edited, Aug 21, 2019 15:21

Jake Jones

Vote:

I suppose when you initally resolve the URL you could ensure you never get the edit mode URL by specifying UrlResolverArguments, something like:

var url = _urlResolver.GetUrl(page.PageLink, ContentLanguage.PreferredCulture.Name,
    new UrlResolverArguments {ContextMode = ContextMode.Default});

Honestly, I feel like there still must be a better approach, maybe adding a new overload method for ResizeImage since that takes in a ContentReference already?

#206452

Aug 21, 2019 15:53

Carl S

Vote:

I don't have access to the Resizer original extension and the Html.ResizeImage takes a ContentReference.

#206456

Aug 21, 2019 16:30

Jake Jones

Vote:

Would you need to change the original? Maybe you could just do something like this (untested) example:

public static class HtmlHelperExtensions
{
    static Injected<IContentRepository> ContentRepository { get; set; }

    public static UrlBuilder ResizeImageCustom(this HtmlHelper helper, ContentReference image, int? width = null, int? height = null)
    {
        if (ContentReference.IsNullOrEmpty(image))
        {
            throw new ArgumentNullException(nameof(image));
        }

        ImageFile imageData;
        
        ContentRepository.Service.TryGet(image, out imageData);

        var urlBuilder = helper.ResizeImage(image, width, height);

        if (imageData != null)
        {
            // Do whatever needs to be done.
        }

        return urlBuilder;
    }
}

#206457

Aug 21, 2019 16:46

valdis

Vote:

we need to change originals :)

#206559

Aug 24, 2019 0:58

This topic was created over six months ago and has been resolved. If you have a similar question, please create a new topic and refer to this one.