Having link to another card

[Salokyn]

Describe the solution you'd like
I'd like that writing #NNN (where NNN is the ID of a card) in a card description would create automatically a hypertex link that opens the card whose id is NNN when I click on it.
Hovering the link could show the title of the card NNN.

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[juliushaertl]

Makes sense 👍

[Salokyn]

To go a little further and navigate easily between linked cards, there could be a new tab in the the card details to show the cards which the actual one links to and those which have a link to the actual one.

[Octothorn]

To go further still, perhaps card links could have a category - one of "Blocker", "Blocked By", "Related" would be categories I would use today, but there could be others (perhaps user configurable).

[mulles]

If this feature would be realized, the foundation for a gantt chart #928 representation would be laid.
After all it is about the possibility to link data together to make obvious that one card depends on the other.

What would be the budget to fund such an enhancement?

[simonsan]

I think this would be a really worthwhile enhancement. Also, it would make it easy to have hierarchical cards, GANTT charts and many more. Each card could contain another field, which could be a HashSet<LinkedCardIds> that stores the linked cards. As card IDs are unique to each system, that could be enough for the start?