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Activity Graph

Created by Gustaf Neumann, last modified by Benjamin Brink 30 Jun 2017, at 07:12 AM

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References to this Page: en:contributors Categories: OpenACS Projects (OpenACS.org), Our Website (OpenACS.org)

XoWiki: List of the available includelets

Created by Gustaf Neumann, last modified by Benjamin Brink 30 Jun 2017, at 07:11 AM

This is a list of the includelets, which can be included in a xowiki page: 

The following includelets can be used in a page
  • {{LTI-LaunchButton -launch_button_label Join Meeting -launch_button_title Click to join -title "" -presentation window}}

  • {{activity-graph -max_edges 70 -cutoff 0.1 -max_activities:integer 100 -show_anonymous message}}

    Include an activity graph

  • {{available-formfields -flat:boolean false}}

    List the available form field types of this installation.

  • {{available-includelets}}

    List the available includelets of this installation.

  • {{book -category_id -menu_buttons edit -folder_mode false -locale "" -range "" -allow_reorder "" -orderby page_order,asc -with_footer false -publish_status ready}}

    Show contents in book mode.

  • {{bookmarklet-button -siteurl "" -label ""}}

    Include bookmarklet button that makes it easy to add the current page as a bookmark in the browser of the client.

  • {{categories -tree_name "" -tree_style:boolean 1 -no_tree_name:boolean 0 -count:boolean 0 -summary:boolean 0 -locale "" -open_page "" -order_items_by title,asc -style mktree -category_ids "" -parent / -except_category_ids "" -allow_edit false -ordered_composite}}

    List the specified category tree.

  • {{categories-recent -max_entries:integer 10 -tree_name "" -locale "" -pretty_age off}}

    Display recent entries by categories.

  • {{chat -title "" -chat_id "" -mode "" -path "" -skin -login_messages_p -logout_messages_p -avatar_p -timewindow}}

    Include a chat in the current page

  • {{chat_room -chat_id -mode:optional "" -path:optional "" -skin:optional ""}}

    Include a chat room

  • {{child-resources -skin:optional yui-skin-sam -show_types ::xowiki::Page,::xowiki::File,::xowiki::Form,::xowiki::FormPage -regexp:optional -language_specific:boolean false -with_subtypes:boolean,optional false -orderby:token,optional last_modified,desc -publish_status:wordchar ready -view_target "" -html-content -parent . -columns objects edit publish_status object_type name last_modified mod_user duplicate delete -hide "" -menubar ""}}

    Include the content of the current folder somewhat similar to explorer.

  • {{collab-graph -max_edges 70 -cutoff 0.1 -show_anonymous message -user_id}}

    Include a collaboration graph

  • {{community-link -text "" -url ""}}

    Include a link to the community including the current page. This includelet is designed to work with dotlrn.

  • {{composite-form -edit_links:boolean false -pages "" -ordered_pages}}

    Create a form from the selection

  • {{copy-item-button -page_id -alt copy -book_mode false}}

    Button to copy a page

  • {{countdown-timer -target_time "" -audio_alarm true}}

    Countdown timer

  • {{create-item-button -page_id -alt new -book_mode false}}

    Button to create a new page based on the current one

  • {{creation-date -source "" -format %m-%d-%Y}}

    Include the creation date of the current or specified page in the provided format.

  • {{current-irc-log -date ""}}

  • {{delete-item-button -page_id -title Delete -alt delete -book_mode false}}

    Button to delete the current or a different page

  • {{delicious -description "" -tags "" -url}}

    Add a button to submit article to delicious.

  • {{digg -description "" -url}}

    Add a button to submit article to digg.

  • {{edit-item-button -page_id -title Edit -alt edit -book_mode false -link "" -target ""}}

    Button to edit the current or a different page

  • {{exam-top-includelet -countdown_audio_alarm true -target_time "" -url_poll "" -url_dismiss "" -poll_interval 5000}}

    This is the top includelet for the in-class exam, containing a countdown timer and the personal notifications includelet

  • {{flowplayer -mp4:required,nohtml}}

    Include an mp4 image using flowplayer

  • {{folders -show_full_tree false -context_tree_view false}}

    List the folder tree of the current instance

  • {{form-menu -form_item_id:integer -parent_id -form -buttons new answers -button_objs -return_url}}

    Include a form menu for the specified Form

  • {{form-stats -form -parent_id -property _state -orderby count,desc -renderer table}}

    Include form statistics for the specofied Form page.

  • {{form-usages -form_item_id:integer,1..n -form -parent_id -package_ids "" -orderby _raw_last_modified,desc -view_field _name -publish_status all -field_names -hidden_field_names _last_modified -extra_form_constraints "" -inherit_from_forms "" -category_id -unless -where -extra_where_clause "" -csv true -voting_form -voting_form_form "" -voting_form_anon_instances t -generate -with_form_link true -with_categories -wf -bulk_actions "" -buttons edit delete -renderer "" -return_url -date_format -with_checkboxes:boolean false}}

    Show usages of the specified form.

  • {{get -variable -form_variable -source ""}}

    Get an instance variable from the current or from a different page.

  • {{graph}}

  • {{gravatar -email:required -size 80}}

    Include gravatar picture for the specified email

  • {{html-file -title "" -extra_css "" -levels 0 -file:required}}

    Include the specified HTML file

  • {{iframe -title "" -url:required -width 100% -height 500px}}

    Include an iframe containing the specified URL

  • {{item-button}}

  • {{jquery-carousel}}

    Display a sequence of pages via jquery-carousel, based on book includelet.

  • {{jquery-cloud-carousel}}

    Display a sequence of pages via jquery-cloud-carousel, based on book includelet.

  • {{jquery-infinite-carousel}}

    Display a sequence of pages via jquery-infinite-carousel, based on book includelet.

  • {{jquery-spacegallery}}

    Display a sequence of pages via jquery-spacegalleryl, based on book includelet.

  • {{kibana -chart openacs-status-codes -from now-24h -to now -hash "" -width:integer 800 -height:integer 400}}

    Include a Kibana chart identified by the provided hash

  • {{last-visited -max_entries:integer 20}}

    Display last visited pages.

  • {{launch-bigbluebutton}}

  • {{launch-jupyter}}

  • {{launch-zoom}}

  • {{link-with-local-return-url -text "" -url ""}}

    Insert a link with extra return URL pointing the current object. This is particularly useful in cases, where a return URL must be created for a page that does not yet exist at time of definition (e.g. for link pointing to concrete workflow instances)

  • {{most-frequent-visitors -max_entries:integer 15}}

    List the most frequent visitors.

  • {{most-popular -max_entries:integer 10 -interval}}

    Display most popular pages of this wiki instance.

  • {{my-categories -summary 1}}

    List the categories associated with the current page.

  • {{my-general-comments}}

    List the general comments available for the current page.

  • {{my-references}}

    List the pages which are referring to the current page.

  • {{my-refers}}

    List the pages which are referred to the current page.

  • {{my-tags -summary 1}}

    List the tags associated with the current page.

  • {{my-yahoo-publisher -publisher "" -rssurl}}

    Name of the publisher, when posting URLs to my yahoo (use in connection with with_yahoo_publisher).

  • {{personal-notification-messages -url_poll "" -url_dismiss "" -poll_interval 5000}}

    Personal notification messages This includelet can be used for personal messaging, where a sender can send messages to a single user in a single applications (e.g. in an exam), where the user has to acknowledge every single message to make it disappear (current implementation). The messages are not persisted (current implementation).

  • {{presence -interval 10 minutes -max_users:integer 40 -show_anonymous summary -page}}

    Show users actively in the wiki.

  • {{random-form-page -form:required -publish_status ready -expires 600}}

    Include random form page (instance of the specified form)

  • {{recent -max_entries:integer 10 -allow_edit:boolean false -allow_delete:boolean false -pretty_age off}}

    Display recent modified entries.

  • {{references-graph -folder . -page "" -link_type link -rankdir LR -fontsize 12}}

    Include a graph of the (partial) link structure in a wiki, starting either with a page or a folder. When a page is provided, the local link structure of this page is visualized (including incoming and outgoing links of the page; e.g. -page "." for the current page). Alternatively, the content of a folder can be shown.

  • {{rss-button -span 10d -name_filter -entries_of -title}}

    Include an RSS button referring to pages of the specified time span.

  • {{rss-client -url:required -max_entries:integer 15}}

    Include RSS content

  • {{s5 -category_id -slideshow:boolean false -pagenr 0 -style standard -menu_buttons view edit copy create delete}}

  • {{selection -edit_links:boolean true -pages "" -ordered_pages "" -source -publish_status ready -menu_buttons edit -range ""}}

    Provide a selection of pages

  • {{set-parameter}}

    Set a parameter accessible to the current page (for certain tailorings), accessible in the page via e.g. the query parameter interface.

  • {{slidy}}

    Display a sequence of pages via W3C slidy, based on book includelet

  • {{tags -limit:integer 20 -summary:boolean 0 -popular:boolean 0 -page}}

    Display specified tags.

  • {{timeline -user_id -data timeline-data -interval1 DAY -interval2 MONTH}}

    Include a timeline of changes (based on yahoo timeline API)

  • {{toc -style "" -renderer "" -open_page "" -book_mode false -folder_mode false -ajax false -expand_all false -remove_levels 0 -category_id -locale "" -orderby "" -source "" -range "" -allow_reorder "" -include_in_foldertree true -CSSclass_top_ul "" -CSSclass_ul ""}}

  • {{unread-items -max_entries:integer 20}}

    List unread items.

  • {{unresolved-references}}

    List the pages with unresolved references in the current xowiki/xowf package. This is intended for use by admins.

  • {{user-timeline -user_id -data timeline-data -interval1 DAY -interval2 MONTH}}

    Include a timeline of changes of the current or specified user (based on yahoo timeline API)

  • {{view-item-button -page_id -title View -alt view -link "" -book_mode false}}

    Button to view the current or a different page

  • {{vspace -height "" -width ""}}

  • {{wf-todo -workflow "" -user_id -ical 0 -max_entries}}

  • {{yui-carousel -title "" -item_size 600x400 -image_size -num_visible 1 -play_interval 0 -auto_size 0 -folder -glob "" -form ""}}

    Include YUI carousel showing the pages of the specified or current folder.

Categories: Our Website (OpenACS.org), Cookbook (OpenACS.org)

Collaboration Graph

Created by Gustaf Neumann, last modified by Benjamin Brink 30 Jun 2017, at 07:10 AM

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Categories: Documentation (OpenACS.org), OpenACS Projects (OpenACS.org)

XoWiki: How to save files directly in the wiki

Created by Gustaf Neumann, last modified by Benjamin Brink 30 Jun 2017, at 07:08 AM

In order to save files directly in the wiki, just add a link with the content file:yourfile to a page (as for other links, between curly double brackets).

[[file:oacs-dotlrn-vienna-xowiki.pdf|XoWiki Slides from the Vienna OpenACS conference]]

When the file link is added, and the file does not exist, the wiki marks the link with a handle to upload the file. According to the current policies, everybody who is logged-in has sufficient permissions is allowed to edit pages.. 

Here is an example of a file-link, pointing to the xowiki slides from the the Vienna oacs-dotlrn conference XoWiki Slides from the Vienna OpenACS conference

 

Categories: Our Website (OpenACS.org), F. A. Q. (OpenACS.org), Cookbook (OpenACS.org)

GETable resources, that should be POSTable resources

Created by Michael Aram, last modified by Benjamin Brink 30 Jun 2017, at 07:05 AM

TODO: These OpenACS-URLs are available via GET requests, but as the associated actions are either not safe or not idempotent (or both), they should be made available only via POST instead...

This is more of a problem nowadays as it was earlier, as current browsers (like Chrome or Safari) tend to fetch resources even before the user hits enter in the address bar (i.e. one cannot easily prevent that an unwanted action is taken while entering a similar URL).

In particular the actual (Jan 2014) versions of Safari on Mac OS X 10.9.1 automatically pre-fetches URLs for an url path, when sub-pages were visited in the past, and a user clicks in the url bar (as soon as it shows possible completions). One can e.g. shut down "automatically" the OpenACS server by on /acs-admin/, since Safari might "prefetch" /acs-admin/server-restart.

This page is only a TODO list, that should become a bug report later...

 

  • /acs-admin/users/become
  • /acs-admin/server-restart

 

Categories: OpenACS Projects (OpenACS.org)

OpenACS Performance Tuning

Created by OpenACS community, last modified by Benjamin Brink 30 Jun 2017, at 06:56 AM

OpenACS Performance Tuning

Here is some documentation on general OpenACS performance tuning:

Much performance tuning is targeted at the subsystems level, and so you will find some specific tuning information in these pages:

A broad scope of causes can be attributed to OpenACS performance issues. These forum threads help identify useful diagnostic techniques and accurate testing to help narrow the scope of problem areas etc.

References to this Page: en:docs-admin, en:docs-admin-toc Categories: Subsystems Documentation (OpenACS.org), F. A. Q. (OpenACS.org), Cookbook (OpenACS.org)

Add extra headers

Created by Rocael Hernández Rizzardini, last modified by Benjamin Brink 30 Jun 2017, at 06:53 AM

Usually you can do it with templates:
<property name="header_stuff">
....
  </property>

But sometimes you want to add it not in just one page, so you usually go to www/site-master.adp, but that is not really good to maintain modularity, so instead, now you can define within your package a tcl callback like this:

ad_proc -public -callback subsite::get_extra_headers -impl my_implementation {} {
    return the stuff that should go into the html headers
} {

    set scripts "...."
    set tags "...."

    set text_to_return $scripts
    append text_to_return $tags

    return $text_to_return

}
 

Categories: Tutorials for Programmers (OpenACS.org), Cookbook (OpenACS.org)

Using Pound as a reverse Proxy

Created by Nima Mazloumi, last modified by Benjamin Brink 30 Jun 2017, at 06:52 AM

Requirements: You have OpenSSL installed and created a certificate.

Assumptions:

  • You have OpenACS 5.2 installed (branch oacs-5-2) under /www/service0
  • Your Server has the IP-Address 1.2.3.4
  • Pound is running on Port 443 under user "root" and group "users"
  • AOLserver on 127.0.0.1, Port 10000
  • Your certificate is under "/www/service0/certs/certificate.pem"

For an alternative of pound, see Nginx with a sample configuration from Malte.

In order to use Pound for Load-Balancing and SSL encryption follow the below steps. Call "man pound" for a detailed description of the used parameters.

  1. Install Pound

    cd /opt/src
    wget http://www.apsis.ch/pound/Pound-2.1.6.tgz
    tar xzpf Pound-2.1.6.tgz
    cd Pound-2.1.6
    ./configure
    make
    make install

  2. Configure Pound

    emacs /usr/local/etc/pound.cfg/usr/local/etc/pound.cfg

    User            "root"
    Group           "users"
    LogLevel        0
    Alive           10

    ListenHTTPS
                Address 1.2.3.4
                Port 443
                Cert "/www/service0/certs/certificate.pem"
                xHTTP 2
                HeadRemove "X-SSL-Request"
                HeadRemove "X-Forwarded-For"
                AddHeader  "X-SSL-Request: 1"

                Service
                    URL ".*"
                    BackEnd
                            Address 127.0.0.1
                            Port 10000
                    End
                End
    End

  3. Configure AOLserver

    emacs /www/service0/etc/config.tcl

    set httpport              10000
    set address               127.0.0.1

  4. Start Pound+AOLserver

 

 

Categories: Tutorials for Administrators (OpenACS.org), Cookbook (OpenACS.org)

Passing values up from an include

Created by irc community, last modified by Benjamin Brink 30 Jun 2017, at 06:47 AM

following dialog from irc (names changed..) shows how to trick the system to pass values from an include to the calling page. This trick needs to be turned into real documentation.

dave: you can't pass stuff up from an include
dave: you have to use upvar
dave: ie: something like this works
michael: but, yes, the order is important. i.e., if i pass a reference to an include and hope to get/use a modified value, the value will be there *after* the <include>
dave: here is what works :)
dave: if you pass a property to a master template
dave: like this
dave: <property name="foo">@foo</property>
dave: <include src="myinclude">
dave: you can upvar #[template::adp_level] foo myfoo
dave: set myfoo "something"
dave: and something will be passed up to the master
dave: but since the code is just one big script
dave: you can't modify code that happens before
dave: we discussed quite a few times a way to work around that
dave: you could upvar something which would be available AFTER the include in the script
michael: i can do the same thing by passing in a reference
dave: yeah
dave: i just though of tha t:)
dave: cool.
michael: and the value will be there after the include
michael: so i just have to move my <property> tags to the bottom of the adp
dave: although that should be documented somehow that an include is modifying stuff in the caller
dave: i don't think you do. I can't remember. did that ages ago for gp and that code is hopefully long gone :)
michael: yeah, i tried it dave:
dave: cool.
tektubby: aha! one of the 7 mysteries of OpenACS solved.
dave: putting property at the bottom works? pretty clever
michael: when referencing the variable (set to "") before the include, i get "" on the calling page
michael: after the include, i get the modified value

Categories: Cookbook (OpenACS.org)

How to contribute code that passes accessibility tests

Created by Rocael Hernández Rizzardini, last modified by Benjamin Brink 30 Jun 2017, at 06:10 AM

About this document

  • Status: DRAFT
  • Updated: 11-jun-2009

Accessibility Policy

The policy for .LRN is published at .LRN website: Accessibility Policy

Corresponding policy for OpenACS is currently being written and will be published soon.

The conformance level to be satisfied is explained in the "Accessibility Conformance Level" section of the .LRN Accessibility Policy.

The "Accessibility page" refered by the .LRN Accessibility Policy states the conformance level and its domain of aplication for each version of the software.

Web Content Accessibility Guidelines

Note: Although automatic tools, such as TAW and "Cynthia says", may be useful to help the developer/author in addressing accessibility issues by providing informative reports, they can not certify the accessibility level of a page since many things need a manual review. Also, those tools won't be able to check a page protected by user and password (they would report on the login page, the one they can actually reach).

WCAG version 2.0

WCAG version 1.0

  • The guidelines: explain how to make Web content accessible to people with disabilities.
  • Checklist of checkpoints to satify for each level of conformance. Each checkpoint is followed by one or more links to techniques in the following documents:
    • "Core Techniques for Web Content Accessibility Guidelines 1.0" ([WCAG10-CORE-TECHNIQUES]), which discusses the accessibility themes and general techniques that apply across technologies.
    • "HTML Techniques for Web Content Accessibility Guidelines 1.0" ([WCAG10-HTML-TECHNIQUES]), which provides examples and strategies for authoring accessible Hypertext Markup Language (HTML) content.
    • "CSS Techniques for Web Content Accessibility Guidelines 1.0" ([WCAG10-CSS-TECHNIQUES]), which provides examples and strategies to help authors write Cascading Style Sheets (CSS) as part of accessible content design.
  • Techniques: gateway to the aforementioned specific ones.

Contributing Code

Once the requirements are met, to contribute your code follow these instructions (one of the two):

  1. How to contribute to OpenACS
  2. Contributing code for .LRN: submit your proposal to the .LRN leadership team by:
    • posting at the .LRN Q&A forum
    • joining the weekly meeting on IRC (tuesday at 18:00 CET/CEST)

Resources

on-site resources

External resources

If you need more information on how to address accessibility, post your questions at the forums

References to this Page: en:coding-standards-index Categories: .LRN (OpenACS.org), Coding Standards (OpenACS.org), Accessibility (OpenACS.org)
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