.GetMatch troubles matching variable

support
1

I’m trying to use a front-matter param to define the path to an image that I want to resize. I can get it to work when I hard code in the file path, but when I try to define the file path with a variable, it gives me a nil pointer error when it tries to resize, so it seems like .GetMatch isn’t working like I expect.

This code works perfectly for me:

{{ $photo := (.Site.GetPage "/images").Resources.GetMatch "file/path.jpg" }}
{{ $resizedPhoto := ($photo.Resize "100x").Permalink }}
<img src="{{ $resizedPhoto }}"</img>

But this code doesn’t:

{{ $photoURL := "file/path.jpg" }}
{{ $photo := (.Site.GetPage "/images").Resources.GetMatch $photoURL }}
{{ $resizedPhoto := ($photo.Resize "100x").Permalink }}
<img src="{{ $resizedPhoto }}"</img>

nor does this:

{{ $photoURL := "file/path.jpg" }}
{{ $photo := (.Site.GetPage "/images").Resources.GetMatch (printf "%q" $photoURL }}
{{ $resizedPhoto := ($photo.Resize "100x").Permalink }}
<img src="{{ $resizedPhoto }}"</img>

Here’s the relevant error:

at <$photo.Resize>: nil pointer evaluating resource.Resource.Resize

In practice $photoURL would be defined by a param, but this illustrates my problem. All of the code examples are being run in the exact same spot, trying to eliminate context as the source of the promble. Any ideas?

2

The error is probably due to that parameter not being present in every file.

Check for the existence of $photoURL like so:

{{ $photoURL := < some-param > }}
{{ with $photoURL }} 
...
{{ end }}

If there are any context issues after wrapping your code in with then you can go higher up by using the dollar sign $ in front of a variable.

If the above does not solve your problem then you need to provide a repo with a simplified version of your project that reproduces the issue.

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