Open a new page in the browser from redirect or URL

[João Matos]

Hello,

I have this function

def check_only_one_selection(ids, destination):
    # type: (List[int], str) -> None
    """Check only one selection in grid.

    :param ids: List of Ids.
    :param destination: Destination page if one selection was made.
    """
    if len(ids) > 1:
        session.flash = T('Select only one record.')
    else:
        redirect(URL(destination, args=[ids[0]])

and would like it to open it's view on another web page (not the same from where it was called).

Something similar to this

<a target="_blank">

but without using A.

Is it possible?

Thanks.

[Leonel Câmara]

It's sort of possible using response.js = "window.open(url, '_blank')" however any modern browser will consider this a popup and block it because it's a window.open that's not coming as a direct result of a click, you can then move a step forward fighting with the user's browser preferences and instead of using window.open you send javascript that creates an A element and clicks it, or even a form that submits to another page. 

 

Don't do this, it won't work reliably. Depending on what you're trying to do a good alternative can be to use a modal, or putting a _target="_blank" in your form so it submits to a new window.

[João Matos]

The problem is that my origin page has a grid with extra buttons, using the selectable option.

And that option does not allow using _target or anything similar. It can only call a function (which is the function on the 1st message).

That function checks if there is only 1 record selected in the grid and if so calls the button action (add, edit, ...)

What I would like is for this action to open a new page.

Do you see some solution?

[icodk]

I would do it in javascript in the view and simulate radio buttons, which means that every time the user is selecting a checkbox the script will clear the former selected checkbox. This way you don't have to deal with informing the user, about multiple selections.

[João Matos]

The grid's checkboxes (and their multiple selection) are not the problem.

The problem is that my origin page has a grid with extra buttons, using the selectable option. And I wanted one of the buttons (from the selectable option) to open a view in another browser page.

Can I control the buttons from the grid's selectable option from Javascript?

[icodk]

My be it is an idea for improving the grid by add (yet another)  option   to have radio buttons instead of checkboxes