related links in partial view json - Razor

David Tregoning 63 posts 236 karma points

Feb 19, 2014 @ 16:40

Related links in partial view - JSON

I am trying to create a hero Carousel on the home page of my site. I have created a separate document type for the hero slides called 'Hero' that contains a 'Related links' property called heroLinks.

I have set up my site (via a Multinode Treepicker data type) so that my home page can select a number of these hero document types via a property called heroCarousel.

I have then created a 'heroWidget' partial view (see below) that I call on my home page template (which contains the Jquery to animate the Carousel) to render the heros as slide and this all works fine.

However I can't seem to get the related links to render on the page despite looking at various examples on the forum.

@inherits UmbracoTemplatePage
<div class="Photo-Carousel">
    <ul class="slides">
    @{
        if (CurrentPage.HasValue("heroCarousel"))
        {
        var heroListValue = Model.Content.GetPropertyValue<string>("heroCarousel");
        var heroList = heroListValue.Split(new string[] { "," }, StringSplitOptions.RemoveEmptyEntries).Select(int.Parse);
        var heroCollection = Umbraco.TypedContent(heroList).Where(x => x != null);
        foreach (var item in heroCollection)
        {
            var heroId = item.Id;
            dynamic heroNode = new umbraco.MacroEngines.DynamicNode(heroId);
            var heroBackground = heroNode.GetPropertyValue("heroBackground");           
            var heroTitle = heroNode.GetPropertyValue("heroTitle");
            var heroText = heroNode.GetPropertyValue("heroText");
            var heroLinks = heroNode.GetPropertyValue("heroLinks");
            <li>
                <img src="@Umbraco.Media(heroBackground.ToString()).Url" border="0" alt="@heroTitle" />
                <div class="heroContainer">
                    <div class="heroTitle">@heroTitle</div>
                    <div class="heroContent">@heroText</div>
                    <div class="heroLinks">
                    @{
                    if(@heroLinks.ToString() != string.Empty){
                        @heroLinks
                    }
                    </div>
                </div>
            </li>
        }       
    }
    </ul>
</div>

This results in the heroLinks div area having the following for the hero document type that has a related link:

[ { "caption": "Go to TFL.gov", "link": "http://tfl.gov.uk", "newWindow": true, "edit": false, "isInternal": false, "type": "external", "title": "Go to TFL.gov" } ]

But where there are no related links the results is

[ ]

I have tried code such as HasValue, but to no avail. I was not sure if this was because my partial view has to call a property (multinode treepicker) that in turn gets a content page and it is the related links property I am trying to read.

Can anybody assist in spliting the JSON result of the related links data and render it correctly within my partial view?

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Jeavon Leopold 3074 posts 13632 karma points MVP 11x admin c-trib

Feb 19, 2014 @ 17:04

Hi David,

I would go with this:

@inherits UmbracoTemplatePage
@using Newtonsoft.Json.Linq
@{      
    if (Model.Content.HasValue("heroCarousel") && Model.Content.GetPropertyValue<string>("heroCarousel").Length > 2)
    {
        <ul>
            @foreach (var item in Model.Content.GetPropertyValue<JArray>("heroCarousel"))
            {
                var linkUrl = (item.Value<bool>("isInternal")) ? Umbraco.NiceUrl(item.Value<int>("internal")) : item.Value<string>("link");
                var linkTarget = item.Value<bool>("newWindow") ? "_blank" : null;
                <li><a href="@linkUrl" target="@linkTarget">@(item.Value<string>("caption"))</a></li>
            }
        </ul>
    }
}

I wrote this snippet for the documentation here, there is also a example using dynamics (CurrentPage) there.

Jeavon

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Jeavon Leopold 3074 posts 13632 karma points MVP 11x admin c-trib

Feb 19, 2014 @ 17:23

I think your complete script might be like this:

@inherits UmbracoTemplatePage
@using Newtonsoft.Json.Linq
@{      
    if (Model.Content.HasValue("heroCarousel") && Model.Content.GetPropertyValue<string>("heroCarousel").Length > 2)
    {
    <div class="Photo-Carousel">
    <ul class="slides">                                        
        @{
            var relatedLinksIds = Model.Content.GetPropertyValue<JArray>("heroCarousel").Select(item => item.Value<int>("internal")).ToList().Where(x => x != 0);
            var heroCollection = Umbraco.TypedContent(relatedLinksIds);
            foreach (var item in heroCollection)
            {
                var heroBackground = Umbraco.TypedMedia(item.GetPropertyValue<int>("heroBackground"));                      
                var heroTitle = item.GetPropertyValue("heroTitle");
                var heroText = item.GetPropertyValue("heroText");
                var heroLinks = item.GetPropertyValue<string>("heroLinks");                        
                <li>
                    @if (heroBackground != null)
                    {
                        <img src="@heroBackground.Url" border="0" alt="@heroTitle" />
                    }
                    <div class="heroContainer">
                        <div class="heroTitle">@heroTitle</div>
                        <div class="heroContent">@heroText</div>
                        <div class="heroLinks">
                            @if (!string.IsNullOrEmpty(heroLinks))
                            {
                                @heroLinks
                            }
                        </div>
                    </div>                       
                </li>                           
            }
        }                
    </ul>
    </div>
    }
}

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David Tregoning 63 posts 236 karma points

Feb 20, 2014 @ 10:07

Thanks for the quick response Jeavon, however I don't think I explained myself correctly. The area I am having issue with is the content of:

var heroLinks = item.GetPropertyValue<string>("heroLinks");

By rendering this out on to the page (within the <div class="heroLinks">) I see the following:

[ { "caption": "Go to TFL.gov", "link": "http://tfl.gov.uk", "newWindow": true, "edit": false, "isInternal": false, "type": "external", "title": "Go to TFL.gov" }, { "caption": "Google", "link": "1382", "newWindow": false, "internal": "1382", "edit": false, "isInternal": true, "iternalName": "Our Vision", "type": "internal", "title": "Google" } ]

or if I look at the source I see:

<div class="heroLinks">
[
  {
    "caption": "Go to TFL.gov",
    "link": "http://tfl.gov.uk",
    "newWindow": true,
    quot;edit": false,
    "isInternal": false,
    "type": "external",
    "title": "Go to TFL.gov"
  },
  {
    "caption": "Google",
    "link": "1382",
    "newWindow": false,
    "internal": "1382",
    "edit": false,
    "isInternal": true,
    "iternalName": "Our Vision",
    "type": "internal",
    "title": "Google"
  }
]
</div>

I tried to adapte your first example using:

<div class="heroLinks">@{
                if (heroLinks.HasValue("heroCarousel") && heroLinks.GetPropertyValue<string>("heroCarousel").Length > 2)
{
    <ul>
        @foreach (var link in heroLinks.GetPropertyValue<JArray>("heroCarousel"))
        {
            var linkUrl = (link.Value<bool>("isInternal")) ? Umbraco.NiceUrl(link.Value<int>("internal")) : link.Value<string>("link");
            var linkTarget = link.Value<bool>("newWindow") ? "_blank" : null;
            <li><a href="@linkUrl" target="@linkTarget">@(link.Value<string>("caption"))</a></li>
        }
    </ul>
}
}           </div>

But this threw up a "'string' does not contain a definition for 'HasValue'" error

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Jeavon Leopold 3074 posts 13632 karma points MVP 11x admin c-trib

Feb 20, 2014 @ 10:19

Hi David,

I understand, did you try the complete script I posted above?

Jeavon

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David Tregoning 63 posts 236 karma points

Feb 20, 2014 @ 10:49

Sorry Jeavon, yes I did and it returned the following error:

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Jeavon Leopold 3074 posts 13632 karma points MVP 11x admin c-trib

Feb 20, 2014 @ 10:59

Ah I think I might have confused myself, heroCarousel is of what type of picker (multinode etc)?

heroLinks is the related links picker, correct?

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David Tregoning 63 posts 236 karma points

Feb 20, 2014 @ 11:30

Correct, my 'heroCarousel' is a multinode tree picker, this picks 1+ of my 'hero' document type items. The 'hero' document type has properties such as:

heroTitle (Textstring)
heroText (Textstring)
heroBackground (Media Picker)
heroLinks (Related Links)

I can get the title, text and background fine and create my carousel but the related links I am struggling with

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Jeavon Leopold 3074 posts 13632 karma points MVP 11x admin c-trib

Feb 20, 2014 @ 11:53

Ok, I think I got it:

@{
    if (Model.Content.HasValue("heroCarousel"))
    {
        <div class="Photo-Carousel">
            <ul class="slides">
                @{
                    var heroListValue = Model.Content.GetPropertyValue<string>("heroCarousel");
                    var heroList = heroListValue.Split(new string[] { "," }, StringSplitOptions.RemoveEmptyEntries).Select(int.Parse);
                    var heroCollection = Umbraco.TypedContent(heroList).Where(x => x != null);
                    foreach (var item in heroCollection)
                    {
                        var heroBackground = Umbraco.TypedMedia(item.GetPropertyValue<int>("heroBackground"));
                        var heroTitle = item.GetPropertyValue("heroTitle");
                        var heroText = item.GetPropertyValue("heroText");
                        var heroLinks = item.GetPropertyValue<JArray>("heroLinks");
                        <li>
                            @if (heroBackground != null)
                            {
                                <img src="@heroBackground.Url" border="0" alt="@heroTitle" />
                            }
                            <div class="heroContainer">
                                <div class="heroTitle">@heroTitle</div>
                                <div class="heroContent">@heroText</div>
                                <div class="heroLinks">
                                    @if (heroLinks.Any())
                                    {
                                        <ul>
                                            @foreach (var linkItem in heroLinks)
                                            {
                                                var linkUrl = (linkItem.Value<bool>("isInternal")) ? Umbraco.NiceUrl(linkItem.Value<int>("internal")) : linkItem.Value<string>("link");
                                                var linkTarget = linkItem.Value<bool>("newWindow") ? "_blank" : null;
                                                <li><a href="@linkUrl" target="@linkTarget">@(linkItem.Value<string>("caption"))</a></li>
                                            }
                                        </ul>
                                    }
                                </div>
                            </div>                       
                        </li>
                    }
                }
            </ul>
        </div>
    }
}

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David Tregoning 63 posts 236 karma points

Feb 20, 2014 @ 12:00

Thats awesome - works a treat, thank you very much for your help Jeavon

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Jeavon Leopold 3074 posts 13632 karma points MVP 11x admin c-trib

Feb 20, 2014 @ 13:14

You're welcome! Glad it's all working now :-)

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Related links in partial view - JSON