Hiya,

StaticFile is intended to be called.  That's what happens when you use it as
described in the docs.  During traversal, something will return a StaticFile
instance, and then the publisher calls the StaticFile. (That's what happens
in the case where it's assigned to a variable, and _q_exports mentions that
variable.)


Try this:
def test(req):
    path = "/images/some_photo.gif"
    graphic = StaticFile(path, mime_type="image/gif")
    return graphic()    # Call the StaticFile instance, and return THAT.


Hope that helps,
Jason


> -----Original Message-----
> From: quixote-users-bounces@mems-exchange.org
> [mailto:quixote-users-bounces@mems-exchange.org]On Behalf Of Charles
> Brandt
> Sent: Friday, November 05, 2004 2:11 AM
> To: quixote-users@mems-exchange.org
> Subject: [Quixote-users] StaticFile cast as str in function return
>
>
> Hello,
>
> I'm having trouble returning an instance of a StaticFile from a function.
> When I do this, the instance gets cast as a string and all that
> is returned
> to the browser is:
> 
> (This is only visible upon viewing the source, and this is all that is in
> the resulting page source. No actual error is raised)
>
> An example that yields the above result for me:
> _q_exports = ["test"]
>
> def test(req):
>     path = "/images/some_photo.gif"
>     graphic = StaticFile(path, mime_type="image/gif")
>     return graphic
>
> My theory is that this is happening in the set_body function in
> quixote.http_response if it doesn't recognize StaticFile as an
> instance of a
> Stream object.
>
>     def set_body(self, body):
>         """set_body(body : any)
>
>         Sets the return body equal to the argument "body". Also
> updates the
>         "Content-length" header if the length is of the body is known.  If
>         the "Content-type" header has not yet been set, it is set to
>         "text/html".
>         """
>         if isinstance(body, Stream):
>             self.body = body
>             if body.length is not None:
>                 self.set_header('content-length', body.length)
>         else:
>             self.body = str(body)
>             self.set_header('content-length', len(self.body))
>         if not self.headers.has_key('content-type'):
>             self.set_header('content-type', 'text/html;
> charset=iso-8859-1')
>
> >>> from quixote.util import StaticFile
> >>> s = StaticFile("/tmp/temp.txt")
> >>> from quixote.http_response import Stream
> >>> if isinstance(s, Stream):
> ....    print "IT IS!"
> ....
> >>> if isinstance(s, StaticFile):
> ....    print "IT IS!"
> ....
> IT IS!
> >>> str(s)
> ''
>
>
> This only happens as a return value of a function.  I can use
> StaticFiles in
> the way described in doc/static-files.txt.  This does work when the
> StaticFile is assigned to a variable and _q_exports returns the variable,
> but not when StaticFile is the return value of a function.
>
> I think this is a similar problem that was mentioned in this
> thread, but the
> proposed solution of setting "COMPRESS_PAGES = 0" did not fix the problem
> for me.
> http://mail.mems-exchange.org/pipermail/quixote-users/2004-January
/002431.html

I am using quixote with Apache 1.3 and SCGI 1.2a2, but I think this is
happening further up the processing chain.

Any ideas?  TIA!

-Charles.


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