Forum OpenACS Q&A: Re: Context bar and xowiki.

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Posted by Richard Hamilton on
Claudio,

I put that index.vuh in the server root for the openacs instance and received the following error:

unknown argument '-' for method 'initialize': valid arguments -ad_doc {-parameter {}} {-package_id 0} {-url {}} {-user_id -1} {-actual_query { }} -original_url_and_query {-init_url true} -form_parameter
while executing
"::xotcl::interpretNonpositionalArgs $args"
(procedure "initialize" line 2)
::xowiki::Package ::xo::PackageMgr->initialize
invoked from within

Any idea what I have done wrong?

Regards
Richard

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Posted by Claudio Pasolini on
I suspect that during the copying and pasting of the script some weird character has been added.

I suggest that you drop any extra character from the command or write it by hand and retry.

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Posted by Richard Hamilton on
Claudio,

I don't think that is it because I didn't do it that way. I noticed the similarity between the file you posted and the index.vuh from the xowiki/www directory, so I copied that file and then modified it by stripping out the additional lines and very carefully adding the one additional magic incantation.

R.

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Posted by Claudio Pasolini on
The method 'initialize' receives an unexpected '-' argument and so something must be wrong in your script.

I would try writing the full ::xowiki::Package command without extra spaces on a single line.

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Posted by Richard Hamilton on
Claudio,

Fantastic, thanks for your clearheaded guidance. The error unsurprisingly was in the only bit that I hand-typed. I had accidentally inserted a space between the '-' and 'url'.

Silly boy!

That has very nicely removed the xowiki package node from the breadcrumb trail. However it still leaves the main root node as follows:

Main : Home

In this case Home is the current page, and Main is a link to the currently displayed page (i.e. Home). This is clearly redundant.

Is it possible to change the -url declaration to in order to skip both superior levels, and if so can that be done only for non-logged in visitors?

Richard.

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Posted by Richard Hamilton on
Can anyone please explain how the -url declaration in this index.vuh tells the request processor to pretend that one of the site nodes doesn't exist?

Also, I have been searching for documentation that explains '::xowiki::Package initialize' but I cannot find anything appropriate. Any pointers gratefully received.

Richard

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Posted by Gustaf Neumann on
"initialize" is a method of the xo* package manager, that initializes a package for a http request (query context).

If you google for "instproc initialize" you find the generic https://openacs.org/api-doc/proc-view?proc=%3A%3Axo%3A%3APackageMgr+instproc+initialize
There is as well some info in the xowiki tutorial: http://alice.wu-wien.ac.at:8000/s5-xowiki-tutorial/slides

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Posted by Richard Hamilton on
Thank you Gustav. I am starting to work through your xotcl docs and these links will be very helpful.

I am hoping to get to grips with oo programming from scratch using xotcl in advance of re-writing an internal message package I wrote for an earlier version of OpenACS.

It is the kind of application that would lend itself to an oo approach.

R.