Bug: Cards disappear after deleting last Select property

[chenilim]

Steps to reproduce the behavior

1. Create a board (e.g. from the Personal Tasks template)
2. Open a card, and delete all the Select properties
3. The board goes blank

Expected behavior

The board should show the cards, under an empty group column.

Edition and Platform

• Edition: Personal Desktop / Personal Server / Mattermost Boards (plugin)
• Version: v0.15
• Browser and OS: Chrome on Mac

Additional context (optional)

The error in the console is "ASSERT [Board views must have groupByProperty set]".

Note that other views (table, calendar, gallery) continue to work, but it's not obvious to the user how to fix this state - they see all the cards disappear.

[chenilim]

Let's write a mini spec on the expected behavior for board views without a select property to group by.

[rthomas67]

I encountered this in a different way.

• Create a board view.
• Create a card with no "select" properties
  • e.g. Create a card with just one text property, which wouldn't be that unusual.
• Board remains blank.

IMO, this is just a side effect of the board-view requirement for at least one "select" property to allow "group by" something.

A few other ways to resolve this might be:

• Display a message on those blank board-views saying something like: Board-views require the cards in this board to have at least one property of type "Select"
• Prevent the creation of a Board-view until the board's cards have at least one "select" property.
  • with: Prevent the removal of the last "select" property unless all board-views have been removed first.

Since (according to the OP) there is a related "ASSERT" console message, it appears to be a detectable circumstance in the code, but that should be revealed more obviously in the UI instead of requiring a user to review back-end output messages and guess about what's wrong.

[Departing]

I just experienced this problem after deleting a property on a card. All of my cards disappeared. How do I fix it? I tried changing views, refreshing, closing out the application.

[rthomas67]

I just experienced this problem after deleting a property on a card. All of my cards disappeared. How do I fix it? I tried changing views, refreshing, closing out the application.

• With the board selected (from the list on the left), click the drop-down-arrow beside Board view (or whatever the currently selected view is named) and choose Add view, --> Table.
  • The table view should now be selected. If not, switch to it.
  • TL/DR --> The table view doesn't require the cards to have a Select-type property, so all cards should all be visible in a table view.
• Open one of the cards.
• Click + Add a property.
• Choose the Select property type.
  • Optional: Give the new Select-type property a better name like "Status" or "Category" (whatever makes sense in your context).
• Close the card
• Switch back to the Board view.
  • Now, with at least one Select-type property defined in the board's cards, the cards should appear in the board views again.