Add ability to set default sort order

[yulolimum]

Right now, the default sort order is by id, ascending.

I've tried adding default sort order by appending query strings in the admin.html:
to: internal_intranet_news_path(@conn, :index) <> "?sort_field=inserted_at&sort_direction=desc"

Apart from breaking the "active" state of the nav link, this works great. This also works with paginated pages.

Since the active link is important, I tried to set default order by setting it in the controller:

    params = Map.put_new(params, "sort_field", "inserted_at")
    params = Map.put_new(params, "sort_direction", "desc")

This is probably cleaner, but this breaks pagination. When clicking on a pagination link, it adds the default query strings (id and asc).

Ideas?

[fire]

https://hexdocs.pm/torch/Torch.TableView.html#table_link/3 Adding an opt to table_link would probably be the best.

Any suggestions on how to do this?

[fire]

https://hexdocs.pm/torch/Torch.Controller.html#functions

In a query pipeline, use in conjunction with Ecto.Query.order_by/3:

order_by(query, ^sort(params))

[morgandonze]

Given that Torch doesn't introduce any db tables, the default order will need to be set by hardcoding when the user installs Torch or runs mix torch.gen. Correct?

[darinwilson]

@mlaco Yep - I think we'd need to accept it as an option to mix torch.gen then have it stored in the generated controller file somehow.