perplex contentblocks determine in masterpage what kind of content blocks are used - Using Umbraco And Getting Started

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Peter van den Dungen 66 posts 365 karma points

Nov 28, 2022 @ 16:53

Perplex ContentBlocks: Determine in masterpage what kind of content blocks are used

Using Umbraco And Getting Started

Umbraco 9

Hi Daniël,

On the masterpage we want to determine what type of content blocks are used for the loaded page.

Now I have this extension method, but I think it can be done without reflection.

public static bool HasDealerLocatorContentBlock(this IPublishedContent content)
    {
        var contentBlocks = content
            .GetType()?
            .GetProperties()?
            .FirstOrDefault(x => x.Name == nameof(Perplex.ContentBlocks.Rendering.ContentBlocks))?
            .GetValue(content, null);

        if (contentBlocks != null && contentBlocks is Perplex.ContentBlocks.Rendering.IContentBlocks)
        {
            if ((contentBlocks as Perplex.ContentBlocks.Rendering.IContentBlocks).Blocks.Any(x => x.Content is DealerLocatorBlock))
            {
                return true;
            }
        }

        return false;
    }

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Daniël Knippers 153 posts 1116 karma points MVP 2x c-trib

Nov 30, 2022 @ 07:21

Hi Peter,

You indeed do not need reflection, you can enumerate all properties of IPublishedContent with their own API. So your method could probably be written like this (untested code though):

public static bool HasDealerLocatorContentBlock(this IPublishedContent content)
{
    if(content is null)
    {
        return false;
    }

    foreach (var property in content.Properties)
    {
        if (property.PropertyType.EditorAlias == Perplex.ContentBlocks.Constants.PropertyEditor.Alias &&
            content.Value<IContentBlocks>(property.Alias) is IContentBlocks contentBlocks &&
            contentBlocks.Blocks.Any(b => b.Content is DealerLocatorBlock))
        {
            return true;
        }
    }

    return false;
}

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Peter van den Dungen 66 posts 365 karma points

Nov 30, 2022 @ 07:55

0

Thanks Daniël!

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