Templates in multiple directories

[Matthew Turk]

Hi there,

I'm somewhat new to Tornado, but I was wondering if it was possible to render templates from a web.Application from multiple directories.  For instance, if I have a systemwide template directory, is there a way to then override with a user-specific template file?

Thanks for any ideas,

Matt

[Dmitri Cherniak]

You can use subdirectories within your template directory. just call

self.render("your_sub_dir/template.html", **kwargs)

it's just a path you need to pass in so you can alter the string as you wish.

[Joe Meyer]

Hi Matt,

I'm a new user and jus

t brute forced this for this by defining the template directory at run time based on whats on the file system.

Eg:

if os.path.isfile(os.path.join(TEMPLATE_TOP,self.client,self.page+".tt")):
                 tt_file = os.path.join(client,self.page+".tt")
            elif os.path.isfile(os.path.join(TEMPLATE_TOP,self.page+".tt")):
                tt_file = self.page+".tt"
            else:
                tt_file = "default.tt"

Cheers,

Joe

[Alek Storm]

So you have a directory structure like this:

system/

    one.html

    two.html

some_user/

    two.html

    three.html

And you want:

self.render("some_user/one.html") -> contents of system/one.html

self.render("some_user/two.html") -> contents of some_user/two.html

self.render("some_user/three.html") -> contents of some_user/three.html

Right? I'd create a subclass of template.BaseLoader that overrides resolve_path() to return "system/<template>" if "<user>/<template>" does not exist. Then store an instance of it as self.loader in your Application constructor, and in a RequestHandler, call self.write(self.app.loader.load(path).generate(*args, **kwargs)), rather than self.render(path, *args, **kwargs).

Alek

[Ben Darnell]

On Thu, Apr 5, 2012 at 2:08 PM, Alek Storm <alek....@gmail.com> wrote:
> Right? I'd create a subclass of template.BaseLoader that overrides
> resolve_path() to return "system/<template>" if "<user>/<template>" does not
> exist. Then store an instance of it as self.loader in your Application
> constructor, and in a RequestHandler, call
> self.write(self.app.loader.load(path).generate(*args, **kwargs)), rather
> than self.render(path, *args, **kwargs).

Actually, if you use the template_loader Application setting (I really
need to document all the recognized settings), self.render() will just
work. You probably want to use self.render() instead of calling
Template.generate() whenever you can, since RequestHandler.render() is
responsible for setting up part of the template namespace.

-Ben

[Brian Jones]

On Thu, Apr 5, 2012 at 11:30 PM, Ben Darnell <b...@bendarnell.com> wrote:

Actually, if you use the template_loader Application setting (I really

need to document all the recognized settings),j

Just a bump. I found this comment by searching for 'possible settings' after (re)-discovering that there actually is a template_path setting separate from the static_path setting. A complete list would be so totally awesome. I bet I've duplicated effort and reinvented wheels a dozen times only to find something in settings could do it for me. :-o 

If and when such a document ever exists, please post to the list.
Thanks!

brian

 

-Ben

>
> Alek
>
> On Thu, Apr 5, 2012 at 3:41 PM, Dmitri Cherniak <dmi...@gmail.com> wrote:
>>
>> You can use subdirectories within your template directory. just call
>>
>> self.render("your_sub_dir/template.html", **kwargs)
>>
>> it's just a path you need to pass in so you can alter the string as you
>> wish.
>>
>>
>> On Thu, Apr 5, 2012 at 4:31 PM, Matthew Turk <matth...@gmail.com>
>> wrote:
>>>
>>> Hi there,
>>>
>>> I'm somewhat new to Tornado, but I was wondering if it was possible to
>>> render templates from a web.Application from multiple directories.  For
>>> instance, if I have a systemwide template directory, is there a way to then
>>> override with a user-specific template file?
>>>
>>> Thanks for any ideas,
>>>
>>> Matt
>>
>>
>

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Brian K. Jones
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