Add the selected train and the projection to the scenario URL

[axrolld]

Description and goal

It would be very nice if the train I have selected and the projection I'm using on my GET are not reset after a refresh. #9011 exist.

We should encode the selected train and projection in the URL doing so will allow sharing a specific view to others.

Technical design

The URL could look like this:

https://..../operational-studies/projects/64/studies/312/scenarios/592?selected_train=4242&projection=8484

Both selected_train and projection are train schedule ids.

Note

If this query parameter is not provided / invalid (deleted train). These parameters should be replaced by the first valid train.

Tip

Bonus: The selected train/projection could also be saved in the local storage. So the next time a user opens its scenario, he has the same page as before.

• Query params have priority
• These parameters must be associated with the scenario (each scenario has it's last selected train/projection)

Acceptance criteria

• When refreshing a scenario page, the previously selected train and train used for the projection are kept
• When sharing the URL we should retrieve the same selected train/projection