How can I get the datasource of a personalized sublayout (webforms)?

Question

I'm working on enabling sublayout caching for personalized sublayouts.

public class ContextCacheableSublayout : Sublayout
{
    public override string GetCacheKey()
    {
        var cacheKey = base.GetCacheKey();
        cacheKey = string.Concat(cacheKey, GetCustomCacheKeyPart());
        return cacheKey;
    }
    private string GetCustomCacheKeyPart()
    {
        //// GET DATASOURCE WITH PERSONALIZATION
    }
}

Basically I just need to generate a cache key based on the correct datasource given the personalization rules. I have the Sublayout already, which has this.Datasource. But how do I make sure to get the current personalized datasource?

I'm following this post as a reference but it pertains to MVC, and I'm not sure how to do the same things with webforms

Answer 1

It's hard to trip down memory lane, as it's been a while.

You can try out following code to get the personalized datasource.

public static List<Item> GetPersonalizationDataSourceItems(this Item i)
{
     List<Item> list = new List<Item>();
     foreach (RenderingReference reference in i.GetRenderingReferences())
     {
        list.AddRange(reference.GetPersonalizationDataSourceItem());
     }
     return list;
}

private static List<Item> GetPersonalizationDataSourceItem(this RenderingReference reference)
{
    List<Item> list = new List<Item>();

       if (reference != null && reference.Settings.Rules != null && reference.Settings.Rules.Count > 0)
            {
                foreach (var r in reference.Settings.Rules.Rules)
                {
                    foreach (var a in r.Actions)
                    {
                        var setDataSourceAction = a as Sitecore.Rules.ConditionalRenderings.SetDataSourceAction<Sitecore.Rules.ConditionalRenderings.ConditionalRenderingsRuleContext>;
                        if (setDataSourceAction != null)
                        {
                            Item dataSourceItem = GetDataSourceItem(setDataSourceAction.DataSource, reference.Database);
                            if (dataSourceItem != null)
                            {
                                list.Add(dataSourceItem);
                            }
                        }
                    }
                }
            }

       return list;
}

Referance link: https://horizontal.blog/2015/09/08/programmatically-get-personalization-datasource-items-of-a-sitecore-item/

Hope it helps!

Answer 2

Webforms, it's been a while.

var renderingReference = Sitecore.Context.Page.GetRenderingReference(this.Parent);
var datasourcePath = renderingReference.Settings.DataSource;

As I recall, this is how you get the datasource. The idea being, you get this value. If it's an empty string, you fall back to Sitecore.Context.Item.

I didn't just pick this out of my personal memory space, I looked around a bit for a refresher ;-)

Source: https://tangenttechnologies.ca/blog/sitecore-webforms-datasources-and-rendering-parameters/

Answer 3

I found an example that is being used to get Personalised datasource from a view rendering. I hope the same logic you can use within your methods.

Here is the sample conde snippet given below.

    private static IEnumerable<Item> GetPersonalizationDataSourceItem(RenderingReference reference, Item i)
    {
        var list = new List<Item>();

        //if no datasource
        if (reference == null)
        {
            return list; 
        }

        //else if no Personalisation is used, return the default datasource
        if (reference.Settings.Rules == null || reference.Settings.Rules.Count <= 0)
        {
            var item = GetDataSourceItem(reference);
            if (item != null)
            {
                list.Add(item);
            }
            return list; 
        }

        var ruleContext = new ConditionalRenderingsRuleContext(new List<RenderingReference> {reference}, reference)
        {
            Item = i
        };

        reference.Settings.Rules.RunFirstMatching(ruleContext);
        list.Add(GetDataSourceItem(reference.Settings.DataSource, reference.Database));

        return list;
    }

And you can follow the below link to get the whole source code.

https://gist.github.com/blacktambourine/9573265cec679134128c7e628f7aff0b