Featured Image naming flexibility in CMS

[ShoGinn]

Feature Request

Is your feature request related to a problem? Please describe.
When using the netlify CMS and adding a featured image to a post, having to depend on the filename is not optimal. Specifically if someone uses an ipad or mobile device and it names the file a GUID

Describe the solution you'd like
Modify the layouts/partials/page_header.html to use the .Params.image.filename included in the CMS submission

Describe alternatives you've considered
No alternatives

Additional context
Here is the code I recommend:

{{ if and .Params.image.filename (not $featured) }}
  {{ $featured = (.Resources.ByType "image").GetMatch (print "*" (strings.TrimSuffix (path.Ext .Params.image.filename) .Params.image.filename) "*") }}
{{ end }}

[ShoGinn]

So I closed the pull request due to the fact that the fix works on just the article page, but everywhere else it is an issue.

Hopefully someone else finds this issue

[Agos95]

I am working on a possible solution. I need some more time time to fix some other things (such as previews on different views). For now, my changes do these steps to find the featured images:

1. Search for a file *featured* in the post directory
   • this is for backward compatibility
2. Search for a file .Params.image.filename in the post directory
   • this is for people who prefers having all the files related to a specific post inside the post directory
3. Search for a file .Params.image.filename in the assets/media/ directory
   • this allows to use an image in assets/media as a featured one. In this way, multiple posts can have the same featured figure without the need to upload the same image multiple times in multiple folders
   • in addition, using Hudo cascade, it is possible to specify a default featured image in config.yaml, which can be used as fallback in the case nothing is specified in the post front matter

Before sending a pull request I need to modify also the code for the different views to have the same logic (now they search only for a file named *featured*).

[ShoGinn]

@Agos95 Awesome, I had made an attempt, but as you pointed out, its in a ton of locations ;) I appreciate you taking this on