filtering nodes by urlsegment instead of id

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utilityLA 7 posts 96 karma points

Jan 20, 2024 @ 00:33
0

filtering nodes by UrlSegment instead of ID
I have a 'story category' document type and a 'story' document type. Users can attach story categories to created stories via Contentful Data List property name 'categories'.

I'm outputting these stories via a Block Grid element. By default, all stories will show up. But if the url has a query parameter (Ex: ?cat=url-segment), then I'd like to output a filtered view where the 'cat' parameter matches stories that have story category with a matching UrlSegment. I'm not receiving any errors, but nothing is outputting however when I using the following code.

I'm brand new to Umbraco and .net core, so I appreciate what a great resource this community has been so far.
```
var currentPage = HttpContextAccessor.HttpContext.Request.Query["cat"];

var stories = 
    Umbraco.ContentAtRoot().DescendantsOrSelfOfType("Story")
        .Where(x => x.IsVisible())
        .Where(x => x.HasValue("categories") && x.Value<IEnumerable<IPublishedContent>>("categories")
        .Select(y => y.UrlSegment)
        .Equals(currentPage))
        .OrderByDescending(x => x.Value<DateTime>("date"))
        .Take(10);
```
If I use the story category ID as the cat parameter instead of UrlSegment and change the code to the following, it works. But I would prefer to match by UrlSegment if possible.
```
Select(y => y.Id)
        .Contains(currentPage))
```
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Marc Goodson 2155 posts 14406 karma points MVP 9x c-trib

Jan 20, 2024 @ 16:45
100
Hi utiilityLA

When you have the working filtering your code is

Select(y=>y.Id)

this would result in an IEnumerable of Ids

and your contains clause checks if it contains the current Id

...

but in your example for UrlSegment

you have

.Select(y => y.UrlSegment)

wouldn't that result in an IEnumerable of strings for each UrlSegment?

and so that would never equal a string category?

also wondering if Any is what you need? I'm typing this on a phone but something like this:
```
 Umbraco.ContentAtRoot().DescendantsOrSelfOfType("Story")
        .Where(x => x.IsVisible() && x.HasValue("categories") && x.Value<IEnumerable<IPublishedContent>>("categories")
        .Select(y => y.UrlSegment).Any(f=>f.Equals(currentPage))
        .OrderByDescending(x => x.Value<DateTime>("date"))
        .Take(10);
```
regards

marc
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utilityLA 7 posts 96 karma points

Jan 20, 2024 @ 19:26

0

Thanks Mark for your response. It makes sense that an IEnumerable of strings would not match a single string.

Your suggestion of using "Any" worked great! Thank you for pointing me in the right direction.

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