drag&drop in calendar not possible

[timopitt]

Drag&Drop is not possible in the calendar view because the duration has stored a negative value.
An attempt leads to an error message: Validation Failed This value should be greater than or equal to 0.

[kevinpapst]

I cannot confirm that. Do you have the latest Kimai installed? There were changes in Kimai core necessary, to allow negative durations. Your validation looks like you ignored the README:

😁

You can always test at the "Plugin Demo", see URL and accounts at https://www.kimai.org/demo/

[timopitt]

You are right, I ignored the README. Maybe you should correct the required version in composer.json too.

[kevinpapst]

Good catch 👍 thanks for spotting!

Technically this is compatible with Kimai 1.20, but Kimai core has some issues with negative durations up until 1.27.0.
So I guess it is better to raise this requirement to 1.27.