View mode enable throws an error when display suite is disabled

I have been experiencing this problem when trying to save display settings for various entities.

I have bootstrap and ds installed.

The problem occurs when the display layout is set to "--None--" in the UI. This then comes through to line 367 (function ds_field_ui_layouts_save() ) as a $layout value of "_none", which throws the error when the library value is being set.

Manually setting the value of $layout to "" at that point prevents the error and the display updates correctly. This is what the provided patch is doing.

Tried to reproduce in several ways but issue not repeating

The patch #4 fixed my problem.

Please try to use tis steps to reproduce:

• Set a layout to default view mode of a content type and display some field.
• Active a new mode, it will be inherit default view mode settings.
• Go to the new view mode activated.
• Set --None-- as layout and try to save.

The thing is, ds_field_ui_layouts_validate() also does that check, so I still have no idea why it is able to crash.

I have a feeling some other module is in the way, but I can't tell for sure. could someone paste the list of modules to see if I can inspect code, because I can't reproduce this with a standard drupal core and DS enabled.

closing for now - doesn't seem that many people have this, and I can't still reproduce.

swentel → closed merge request !8