Layout antics

rubyonrails-talk
1

I have a strange problem with my layout file. I think it may be due to nested partials, but removing the deepest nested partial call does not clear the problem.

I have an application wide layout (application.html.erb) that works as expected - loads images, javascript, css etc for my application.

So http://localhost:3000/patients --> fine http://localhost:3000/patients/new --> fine http://localhost:3000/operations --> fine http://localhost:3000/operations/new --> problems

The problem is that rails is suddenly confused about paths and interprets:

<link href="css/menu.css" rel="stylesheet" type="text/css" />

As routing calls. (from the stderror output):

Processing OperationsController#css to css (for 127.0.0.1 at 2009-05-01 06:07:26) [GET]   Parameters: {"id"=>"menu"}

ActionController::UnknownAction (No action responded to css. Actions: access_denied, check_group, check_roles, create, destroy, edit, index, new, role_requirements, role_requirements=, show, toggle, and update):

Does anyone have an idea of where to look or have you seen this error before?

Nothing dynamic is changing in the layout file to my knowledge. This error occurs if I call that page directly, or if I get there through the application (operations belong to patients, patients have many operations).

2

dwormuth wrote:

I have a strange problem with my layout file. I think it may be due to nested partials, but removing the deepest nested partial call does not clear the problem.

I have an application wide layout (application.html.erb) that works as expected - loads images, javascript, css etc for my application.

So http://localhost:3000/patients --> fine http://localhost:3000/patients/new --> fine http://localhost:3000/operations --> fine http://localhost:3000/operations/new --> problems

The problem is that rails is suddenly confused about paths and interprets:

<link href="css/menu.css" rel="stylesheet" type="text/css" />

I'd try using an absolute path i.e: "/css/menu.css"

HTH

~Matt

3

The hard coded url fixed the problem. I'll try the stylesheet_link tag next. I'd really like to understand why the layout works for some controller/actions and not for others.

Thanks for the help

Dave

4

dwormuth wrote: [...]

I'd really like to understand why the layout works for some controller/actions and not for others.

Most likely because you had a relative URL that worked with respect to /operations, but not with respect to /operations/new (which is one level deeper in the virtual directory hierarchy that Rails creates). Notice that the absolute path for your CSS file works in all cases.

This is fundamental to all Web development. If you don't understand the difference between absolute and relative paths, then go study some more, because it's essential that you understand it. If you *do* understand it, then be aware that it works in Rails the same as it does anywhere else (except that most of the directories are virtual).

Does that help?

Best,

5

Thanks, I was considering "new" as the same level as "index", but see how this makes a difference.

Dave