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Olivier Dalle's Corner: PmWiki / Edit Variables
Olivier Dalle's

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When set to ‘1′, turns on the graphical buttons in the “Edit Page” form.
        # turn on graphical edit buttons
        $EnableGUIButtons = 1;
When set to ‘1′, posting of pages requires the author to provide an author name. Otherwise, authors can post without a name.
        # require authors to provide a name
        $EnablePostAuthorRequired = 1; 
When set to ‘1′, enables the “Save as draft” button and built-in handling of “draft” versions of pages, where: (1) initial “Save as draft” of an existing page (“PageName”) saves changes to a new name (“PageName-Draft”), (2) subsequent attempts to edit PageName causes PageName-Draft to be edited, (3) subsequent selections of “Save as draft” cause PageName-Draft to be saved, and (4) pressing “Save” causes PageName-Draft to be posted to PageName, and deleted.
        # turn on draft edits
        $EnableDrafts = 1;
The suffix to use for draft versions of pages (default “-Draft”).
The $DiffKeepDays variable sets the minimum length of time that a page’s revision history is kept. By default it is set to 3650 days, or a little less than ten years. You can change this value in a customization file to be something smaller, e.g.:
        $DiffKeepDays = 30; # keep revisions at least 30 days
Note that a specific page revision isn’t removed from the page until the first edit after the time specified by $DiffKeepDays has elapsed. Thus, it’s still possible for some pages to have revisions older than $DiffKeepDays — such revisions will be removed the next time those pages are edited.
The pattern used to determine if a page should be deleted. The default is to remove pages that contain only the single word “delete” (and optional spaces).
        # change delete word to “remove”
        $DeleteKeyPattern = “^\\s*remove\\s*$”;
        # delete any page with no visible text, i.e., empty
        $DeleteKeyPattern = “^\\s*$”;
Name of the page (or an array of names) to be used as the default text for any newly created pages.
        # Use 'Main.NewPageTemplate' as default text of all new pages
        $EditTemplatesFmt = 'Main.NewPageTemplate';
        # Use 'Template' in the current group for new pages
        $EditTemplatesFmt = '$Group.Template';
        # Use 'Template' in the current group if it exists, otherwise
        # use 'Main.NewPageTemplate'
        $EditTemplatesFmt = array('$Group.Template', 'Main.NewPageTemplate');
The text that should be displayed when browsing non-existent pages. As default PmWiki uses the contents of Site.PageNotFound
        $DefaultPageTextFmt = '(:include $[{$SiteGroup}.PageNotFound]:)'; 
This array contains the sequence of functions that are called when a page is edited. It can be customized to provide additional functions to be called as part of the editing process. The standard setting is:
        $EditFunctions = array('EditTemplate', 'RestorePage', 'ReplaceOnSave', 
          'SaveAttributes', 'PostPage', 'PostRecentChanges', 'PreviewPage'); 
With this array you can give a pattern as key and a text which should replace it when saving an edited text. See Cookbook:ROSPatterns for examples.
Set to a true value if the page is actually saved (e.g., this is used to tell the RecentChanges handlers if they need to update).
By default, this is the HTML to be displayed for an edit form.
Specifies the edit form for ?action=edit. Defaults to ‘$SiteGroup.EditForm’.
Like $HandleBrowseFmt, this specifies the entire output format for ?action=edit for a page.
The page to which an author is sent after pressing “Save” or “Cancel” from an edit form. Defaults to “$FullName”, which sends the author to the page just edited, but can be changed to specify another page.
        # redirect to Main.HomePage
        $EditRedirectFmt = 'Main.HomePage';  
        # redirect to HomePage of current group
        $EditRedirectFmt = '{$Group}.HomePage';