How To Define Global Tags
= Define Global Tags =
Global tags are Radius rags like
If you have deployed Radiant with the—unpack switch, you can edit app/models/page_context.rb directly.
Alternatively you can write an extension, as covered in [Creating_Radiant_Extensions].
Examples=== If Children Exist ===
{{{ tag “if_children” do |tag| tag.expand if tag.locals.page.has_children? end }}}
Then in your page write
{{{This will create a unordered list of links to the children of the page, sorted by ascending title, if any exist.
=== Random Child Page ===
{{{ tag “children:random” do |tag| children = tag.locals.children if children.size > 0 index = rand(children.size) tag.locals.page = children[index] tag.expand end end }}}
Then in your page, write
{{{Or just
{{{Note that this will only select one child page, and needs modification to select more than one.
=== Refer to the Parent Page ===
{{{ tag “parent” do |tag| tag.locals.page = tag.locals.page.parent tag.expand if tag.locals.page.has_parent? end
tag “if_parent” do |tag| tag.expand if tag.locals.page.has_parent? end
tag “unless_parent” do |tag| tag.expand unless tag.locals.page.has_parent? end }}}
In your page, write this:
{{{This will create a link to the parent page that says “Go up”.
