Problem with :inner_window and :outer_window

I'm not sure if I get correctly ho to use those settings, but it seems to me that in version 2.3.2 they don't work as expected:

I do in the view: <%= will_paginate @articles, :inner_window => 2, :outer_window => 0 %>

Then I have 8 pages: I go to page 1 and I see: 1 2 3 4 5 ... 8 Next >

If I go to page 4, I see: < Previous 1 2 3 4 5 6 7 8 Next >

On page 7 I see: < Previous 1 ... 4 5 6 7 8 Next >

if :inner_windows represent the number of page links I see around the current page, it seems to work bad.

Hey, your observation is correct, but this is not a bug. It's just some undocumented behavior.

When you go to page N with :inner_window being 2, the visible pages around it should be:

... N-2  N-1  N  N+1  N+2 ...

But when the page N is first or last, we have a problem. Watch what pages would be visible if we're on the first page:

-1 0 1 2 3 ...

Oops, pages "-1" and "0" don't exist. They are out of bounds. So what will_paginate does is that it takes visible pages out of bounds on the left and adds them to visible pages on the right (and vice-versa).

This means that page 1 has, instead of 2 numbers on the left and 2 on the right, 0 numbers on the left and 4 on the right.

This behavior ensures that rendered page links will always be roughly the same width.