System Variables

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Posted by gerdami on 25 May 2008 15:21, last edited on 08 May 2010 01:59

This wish is open

Description

From recent posts, it seems that there is a need for system variables such as:

[$currentPageName] i.e. cat1:pagename %%page_name%%
[$currentPageCategory] i.e. cat1:pagename %%category%%
[$currentPageFullName] i.e. cat1:pagename %%full_page_name%%
[$currentPageTitle] %%title%%
[$currentPageCreatedBy]] i.e. the first author %%author%%
[$currentPageCreatedDate]] i.e. the creation date %%date%%
[$currentPageLastEditedBy]] i.e. the last editor %%updated_by%% and %%updated_by_linked%%
[$currentPageLastEditedDate]] i.e. the last edition date %%updated_at|format%%
[$currentPageLastEditedTime]] i.e. the last edition time %%updated_at|format%%
[$currentUserName]] [[module ListUsers users="."]]
[$currentPageFirstImage] i.e., filename of first image uploaded in format: image.jpg (Not needed? Just use [[image :first]].)

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[$numberOfPages] might be interesting or [[module CountPages options]]
[[module CountPages]] and [[module CountPages category="cat1"]]

* current wiki %%site_title%%%%site_name%%%%site_domain%%
* current username [[module ListUsers users="."]]
* number of users per wiki (There is a workaround to do this, but it's for Pro accounts only, so not crossing this off yet)
* number of active users (over the last N days or weeks or months or years)
* current page name (with and without the category: )
* total number of pages [[module CountPages options]]
* total number of pages, templates or system pages excepted [[module CountPages options]]
* total number of categories
* number of pages per category [[module CountPages category="cat1, cat2"]]
* number of words per page (for hartnell's ztags …) (There is a variable for length of page in # of characters, but not # of words)

Links to forum Posts

• http://community.wikidot.com/forum/t-13674/system-variables-needed
• http://community.wikidot.com/forum/t-13674/system-variables-needed#post-38271 (Michal's reply)
• http://community.wikidot.com/forum/t-26013/highlighting-pages-in-side-bar
• http://www.wikidot.com/forum/t-59612/templates#post-187066
• http://community.wikidot.com/forum/t-74651/dynamic-page-names#post-221296

Live templates

Added on 14 November

Some of the requested systeme variables have been implemented through the live templates, look for paragraph on Page variables within the _template (new!!!).
However, one missing variable in the context of live templates but also of the ListPages module is the %%right-part-of-the-pagename%%.
See my blog post Multilingual wikidot site - the missing puzzle piece for illustration. %%page_name%%

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scottplan 07 Jul 2008 05:32

[$currentThread] might let people sign up for emailed responses to their forum posts, requested here.

Helpful for blogs

David Marseilles 07 Jul 2008 21:09

This could really cut down on repetitive entry for bloggers.

I added [$currentPageFirstImage], which would be helpful for blogs that display an image with each post, and cut down on the workload a little further.

ErichSteinboeck 05 Mar 2009 08:20

I suggest implementing this feature exactly as it currently works in live templates, i. e. %%page_unix_name%%, not [$currentPageFullName]

Re:

James Kanjo 05 Mar 2009 09:06

I reckon this wish needs to be rewritten in light of the variables of the Live Templates and ListPages module.

%% variables seem to apply to a page that's being called/summoned. The _template summons the category page and applies the variables, the ListPages module summons pages and applies the variables. I realise that this is more-than-likely NOT how it works, but you get the picture.

So if %% variables apply to summoned pages, we need some other paired symbol to make variables apply to the current page. Perhaps $$ ? This way, you can differentiate between other code:

This page's name is mineral:$$page_name$$.

[[module ListPages category="food" limit="1" skipCurrent="true"]]
This food page's name is %%page_name%%.

%%page_name%% may equal $$page_name$$, as they are in different categories.
[[/module]]

All $$ variables would mirror the %% variables. What do you think?

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λ James Kanjo
_{Blog | Wikidot Expert | λ and Proud
Web Developer | HTML | CSS | JavaScript}

Re:

ErichSteinboeck 05 Mar 2009 15:19

You're making a good point.

A similar situation — two or more module ListPages calls on a single page should be able to distinguish their respective parameters — was implemented using a prefix to the parameter (see urlAttrPrefix in Listpages doc).

So we could suggest a similar approach here:

• Use %%title%% if there's no ambiguity (e. g. when being used within a live template or outside any module call)
  
  
• Use %%current:title%% or %%module-name:title%% (where module-name is the name of the module supplying the %% parameter) if used within a module call and thus has to be explicitly specified
  
  
• If the Wikidot parser supported nested module calls (e. g. a module Feed call within the body of a ListPages call, or even a ListPages call within the body of another ListPages call), use %%current:title%% or %%module-name[.nesting-depth]:title%%, where module-name is the name of the module supplying the %% parameter and nesting-depth is an optional number specifying the module nesting level (e. g. %%ListPages.2:title%%)

Easy for beginners, no change to existing code, no need to know the more sophisticated syntax except if you really need it.

An example would be

[[module ListPages ...]]
[[module Feed ...]]
The current page's title is {{%%current:title%%}}, \
the ListPages page title is  {{%%ListPages:title%%}}, \
and the Feed's title is {{%%Feed:title%%}}
[[/module]]
[[/module]]

Workaround Available

ErichSteinboeck 21 Mar 2009 13:07

I've posted a workaround for system (and user) variables in the Community How-To System Variables. For the technically interested, there's also a document covering technical details of it.

gerdami 07 May 2010 17:49

Woaw, this wishlist has been implemented at about 89% … and counting.

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gerdami - Visit Handbook en Français - Rate this howto:import-simple-excel-tables-into-wikidot up!