No way to make videos and audio optional

[pigeonflight]

current behaviour

When the video behaviour is enabled on a content type, it is not possible to save changes unless there is either a youtube url or an attached video (this is due to a registered invariant setting)

When the audio behaviour is enabled on a content type, it is not possible to save changes unless there is an attached audio.

This means that there is not way to support an optional audio or video attachment.

proposed changes to behaviour

There could be a global option which makes media attachements (audio/video) optional

[pigeonflight]

for now I've created a branch that makes video and audio optional. https://github.com/collective/wildcard.media/commit/2901c3cd4fa4af0415d46e8516c4ca6de1a71979

[pigeonflight]

I'm closing this as I have an alternative approach. My two aims are to make it easy to add a file field that supports streaming/seeking or the ability to easily skip to a section of a media file. When wildcard.media fits my use case it is great but there are scenarios that don't align as nicely (e.g. when I want the media fields to be optional). For this reason I'm proposing, at minimum, the ability support "seeking" out of the box on files with Plone.

See the suggestion here: https://github.com/plone/plone.formwidget.namedfile/issues/39 and here: #59