Option to choose view mode for injected product variation in views

+1 on #14 that's the only correct implementation!

@Maintainers: Do you also agree with #14? Then we could proceed here for 3.0.x!

Another alternative would be to have all fields as pseudo-fields on the product variation, if the option is selected. That would be even more flexible and would put these even at the display configuration level for all display modes!

I think one of both ways should be chosen!

For anyone else landing here - I worked around this by:

• disabling the tick box to inject the variants
• For the default product view - tick layout options > Use Layout Builder
• Within layout builder - then add "Variations" field - using "Add to cart form" formatter
• Within layout builder - then add "Default variation" field - using Rendered entity formatter and bespoke View mode if needed

Thanks @newaytech - that shows there's still demand for this. I'd love to get some maintainer feedback i #14 to proceed here.

For the record I would love to see this too.

I found that what's outlined in comment 11 works to achieve something similar to what I think the OP was trying to do. In my case I needed to render the product full/default view with most product variation fields showing, and in product lists I needed a "teaser" type of output where only some fields were shown, sometimes with different output settings.

To achieve this I:

1. Set up same-named "Teaser" view modes (/admin/structure/display-modes/view) for both the Product and Product variation (enabled for the sub-types that needed it).
2. Configured the display settings for each, reducing and changing how certain fields were rendered in the teaser view modes via each Product/Product variation field's display settings.
3. Created both commerce-product.html.twig and commerce-product--teaser.html.twig template files with statements like {{- product.variation_field_foo -}} and {{- product.variation_field_bar -}} to render the fields where needed. It sounds like layout builder could be employed here as an alternative to this template-based approach (see #2716417-22: Allow rendering of variation fields on the product entity. → ).
4. Selected the "Teaser" view mode for products in views-driven product lists.

Seems to work great.

I agree with comment 14 that it would certainly be nice if we did not have to rely on this same-name magic and could instead select the desired product variation view mode from the product view mode's display settings (defaulting to current behavior).