# Redo StandardTags descriptions. This is necessary because the standard tags' descriptions are badly formatted and depend on a bug in RedCloth 3. The easist way to redefine the descriptions is to just redefine StandardTags with the corrections. The problem will go away in the next version of Radiant.
module StandardTags
include Radiant::Taggable
include LocalTime
class TagError < StandardError; end
desc %{
Causes the tags referring to a page's attributes to refer to the current page.
*Usage:*
<pre><code><r:page>...</r:page></code></pre>
}
tag 'page' do |tag|
tag.locals.page = tag.globals.page
tag.expand
end
[:breadcrumb, :slug, :title].each do |method|
desc %{
Renders the @#{method}@ attribute of the current page.
}
tag method.to_s do |tag|
tag.locals.page.send(method)
end
end
desc %{
Renders the @url@ attribute of the current page.
}
tag 'url' do |tag|
relative_url_for(tag.locals.page.url, tag.globals.page.request)
end
desc %{
Gives access to a page's children.
*Usage:*
<pre><code><r:children>...</r:children></code></pre>
}
tag 'children' do |tag|
tag.locals.children = tag.locals.page.children
tag.expand
end
desc %{
Renders the total number of children.
}
tag 'children:count' do |tag|
tag.locals.children.count
end
desc %{
Returns the first child. Inside this tag all page attribute tags are mapped to
the first child. Takes the same ordering options as @<r:children:each>@.
*Usage:*
<pre><code><r:children:first>...</r:children:first></code></pre>
}
tag 'children:first' do |tag|
options = children_find_options(tag)
children = tag.locals.children.find(:all, options)
if first = children.first
tag.locals.page = first
tag.expand
end
end
desc %{
Returns the last child. Inside this tag all page attribute tags are mapped to
the last child. Takes the same ordering options as @<r:children:each>@.
*Usage:*
<pre><code><r:children:last>...</r:children:last></code></pre>
}
tag 'children:last' do |tag|
options = children_find_options(tag)
children = tag.locals.children.find(:all, options)
if last = children.last
tag.locals.page = last
tag.expand
end
end
desc %{
Cycles through each of the children. Inside this tag all page attribute tags
are mapped to the current child page.
*Usage:*
<pre><code><r:children:each [offset="number"] [limit="number"] [by="attribute"] [order="asc|desc"]
[status="draft|reviewed|published|hidden|all"]>
...
</r:children:each>
</code></pre>
}
tag 'children:each' do |tag|
options = children_find_options(tag)
result = []
children = tag.locals.children
tag.locals.previous_headers = {}
children.find(:all, options).each do |item|
tag.locals.child = item
tag.locals.page = item
result << tag.expand
end
result
end
desc %{
Page attribute tags inside of this tag refer to the current child. This is occasionally
useful if you are inside of another tag (like <r:find>) and need to refer back to the
current child.
*Usage:*
<pre><code><r:children:each>
<r:child>...</r:child>
</r:children:each>
</code></pre>
}
tag 'children:each:child' do |tag|
tag.locals.page = tag.locals.child
tag.expand
end
desc %{
Renders the tag contents only if the contents do not match the previous header. This
is extremely useful for rendering date headers for a list of child pages.
If you would like to use several header blocks you may use the @name@ attribute to
name the header. When a header is named it will not restart until another header of
the same name is different.
Using the @restart@ attribute you can cause other named headers to restart when the
present header changes. Simply specify the names of the other headers in a semicolon
separated list.
*Usage:*
<pre><code><r:children:each>
<r:header [name="header_name"] [restart="name1[;name2;...]"]>
...
</r:header>
</r:children:each>
</code></pre>
}
tag 'children:each:header' do |tag|
previous_headers = tag.locals.previous_headers
name = tag.attr['name'] || :unnamed
restart = (tag.attr['restart'] || '').split(';')
header = tag.expand
unless header == previous_headers[name]
previous_headers[name] = header
unless restart.empty?
restart.each do |n|
previous_headers[n] = nil
end
end
header
end
end
desc %{
Page attribute tags inside this tag refer to the parent of the current page.
*Usage:*
<pre><code><r:parent>...</r:parent></code></pre>
}
tag "parent" do |tag|
parent = tag.locals.page.parent
tag.locals.page = parent
tag.expand if parent
end
desc %{
Renders the contained elements only if the current contextual page has a parent, i.e.
is not the root page.
*Usage:*
<pre><code><r:if_parent>...</r:if_parent></code></pre>
}
tag "if_parent" do |tag|
parent = tag.locals.page.parent
tag.expand if parent
end
desc %{
Renders the contained elements only if the current contextual page has no parent, i.e.
is the root page.
*Usage:*
<pre><code><r:unless_parent>...</r:unless_parent></code></pre>
}
tag "unless_parent" do |tag|
parent = tag.locals.page.parent
tag.expand unless parent
end
desc %{
Renders the contained elements only if the current contextual page has one or
more child pages. The @status@ attribute limits the status of found child pages
to the given status, the default is @"published"@. @status="all"@ includes all
non-virtual pages regardless of status.
*Usage:*
<pre><code><r:if_children [status="published"]>...</r:if_children></code></pre>
}
tag "if_children" do |tag|
children = tag.locals.page.children.count(:conditions => children_find_options(tag)[:conditions])
tag.expand if children > 0
end
desc %{
Renders the contained elements only if the current contextual page has no children.
The @status@ attribute limits the status of found child pages to the given status,
the default is @"published"@. @status="all"@ includes all non-virtual pages
regardless of status.
*Usage:*
<pre><code><r:unless_children [status="published"]>...</r:unless_children></code></pre>
}
tag "unless_children" do |tag|
children = tag.locals.page.children.count(:conditions => children_find_options(tag)[:conditions])
tag.expand unless children > 0
end
desc %{
Renders one of the passed values based on a global cycle counter. Use the @reset@
attribute to reset the cycle to the beginning. Use the @name@ attribute to track
multiple cycles; the default is @cycle@.
*Usage:*
<pre><code><r:cycle values="first, second, third" [reset="true|false"] [name="cycle"] /></code></pre>
}
tag 'cycle' do |tag|
raise TagError, "`cycle' tag must contain a `values' attribute." unless tag.attr['values']
cycle = (tag.globals.cycle ||= {})
values = tag.attr['values'].split(",").collect(&:strip)
cycle_name = tag.attr['name'] || 'cycle'
current_index = (cycle[cycle_name] ||= 0)
current_index = 0 if tag.attr['reset'] == 'true'
cycle[cycle_name] = (current_index + 1) % values.size
values[current_index]
end
desc %{
Renders the main content of a page. Use the @part@ attribute to select a specific
page part. By default the @part@ attribute is set to body. Use the @inherit@
attribute to specify that if a page does not have a content part by that name that
the tag should render the parent's content part. By default @inherit@ is set to
@false@. Use the @contextual@ attribute to force a part inherited from a parent
part to be evaluated in the context of the child page. By default 'contextual'
is set to true.
*Usage:*
<pre><code><r:content [part="part_name"] [inherit="true|false"] [contextual="true|false"] /></code></pre>
}
tag 'content' do |tag|
page = tag.locals.page
part_name = tag_part_name(tag)
boolean_attr = proc do |attribute_name, default|
attribute = (tag.attr[attribute_name] || default).to_s
raise TagError.new(%{`#{attribute_name}' attribute of `content' tag must be set to either "true" or "false"}) unless attribute =~ /true|false/i
(attribute.downcase == 'true') ? true : false
end
inherit = boolean_attr['inherit', false]
part_page = page
if inherit
while (part_page.part(part_name).nil? and (not part_page.parent.nil?)) do
part_page = part_page.parent
end
end
contextual = boolean_attr['contextual', true]
part = part_page.part(part_name)
tag.locals.page = part_page unless contextual
tag.globals.page.render_snippet(part) unless part.nil?
end
desc %{
Renders the containing elements if all of the listed parts exist on a page.
By default the @part@ attribute is set to @body@, but you may list more than one
part by separating them with a comma. Setting the optional @inherit@ to true will
search ancestors independently for each part. By default @inherit@ is set to @false@.
When listing more than one part, you may optionally set the @find@ attribute to @any@
so that it will render the containing elements if any of the listed parts are found.
By default the @find@ attribute is set to @all@.
*Usage:*
<pre><code><r:if_content [part="part_name, other_part"] [inherit="true"] [find="any"]>...</r:if_content></code></pre>
}
tag 'if_content' do |tag|
page = tag.locals.page
part_name = tag_part_name(tag)
parts_arr = part_name.split(',')
inherit = boolean_attr_or_error(tag, 'inherit', 'false')
find = attr_or_error(tag, :attribute_name => 'find', :default => 'all', :values => 'any, all')
expandable = true
one_found = false
part_page = page
parts_arr.each do |name|
name.strip!
if inherit
while (part_page.part(name).nil? and (not part_page.parent.nil?)) do
part_page = part_page.parent
end
end
expandable = false if part_page.part(name).nil?
one_found ||= true if !part_page.part(name).nil?
end
expandable = true if (find == 'any' and one_found)
tag.expand if expandable
end
desc %{
The opposite of the @if_content@ tag. It renders the contained elements if all of the
specified parts do not exist. Setting the optional @inherit@ to true will search
ancestors independently for each part. By default @inherit@ is set to @false@.
When listing more than one part, you may optionally set the @find@ attribute to @any@
so that it will not render the containing elements if any of the listed parts are found.
By default the @find@ attribute is set to @all@.
*Usage:*
<pre><code><r:unless_content [part="part_name, other_part"] [inherit="false"] [find="any"]>...</r:unless_content></code></pre>
}
tag 'unless_content' do |tag|
page = tag.locals.page
part_name = tag_part_name(tag)
parts_arr = part_name.split(',')
inherit = boolean_attr_or_error(tag, 'inherit', false)
find = attr_or_error(tag, :attribute_name => 'find', :default => 'all', :values => 'any, all')
expandable, all_found = true, true
part_page = page
parts_arr.each do |name|
name.strip!
if inherit
while (part_page.part(name).nil? and (not part_page.parent.nil?)) do
part_page = part_page.parent
end
end
expandable = false if !part_page.part(name).nil?
all_found = false if part_page.part(name).nil?
end
if all_found == false and find == 'all'
expandable = true
end
tag.expand if expandable
end
desc %{
Renders the containing elements only if the page's url matches the regular expression
given in the @matches@ attribute. If the @ignore_case@ attribute is set to false, the
match is case sensitive. By default, @ignore_case@ is set to true.
*Usage:*
<pre><code><r:if_url matches="regexp" [ignore_case="true|false"]>...</r:if_url></code></pre>
}
tag 'if_url' do |tag|
raise TagError.new("`if_url' tag must contain a `matches' attribute.") unless tag.attr.has_key?('matches')
regexp = build_regexp_for(tag, 'matches')
unless tag.locals.page.url.match(regexp).nil?
tag.expand
end
end
desc %{
The opposite of the @if_url@ tag.
*Usage:*
<pre><code><r:unless_url matches="regexp" [ignore_case="true|false"]>...</r:unless_url></code></pre>
}
tag 'unless_url' do |tag|
raise TagError.new("`unless_url' tag must contain a `matches' attribute.") unless tag.attr.has_key?('matches')
regexp = build_regexp_for(tag, 'matches')
if tag.locals.page.url.match(regexp).nil?
tag.expand
end
end
desc %{
Renders the contained elements if the current contextual page is either the actual page or one of its parents.
This is typically used inside another tag (like <r:children:each>) to add conditional mark-up if the child element is or descends from the current page.
*Usage:*
<pre><code><r:if_ancestor_or_self>...</r:if_ancestor_or_self></code></pre>
}
tag "if_ancestor_or_self" do |tag|
tag.expand if (tag.globals.page.ancestors + [tag.globals.page]).include?(tag.locals.page)
end
desc %{
Renders the contained elements unless the current contextual page is either the actual page or one of its parents.
This is typically used inside another tag (like <r:children:each>) to add conditional mark-up unless the child element is or descends from the current page.
*Usage:*
<pre><code><r:unless_ancestor_or_self>...</r:unless_ancestor_or_self></code></pre>
}
tag "unless_ancestor_or_self" do |tag|
tag.expand unless (tag.globals.page.ancestors + [tag.globals.page]).include?(tag.locals.page)
end
desc %{
Renders the contained elements if the current contextual page is also the actual page.
This is typically used inside another tag (like <r:children:each>) to add conditional mark-up if the child element is the current page.
*Usage:*
<pre><code><r:if_self>...</r:if_self></code></pre>
}
tag "if_self" do |tag|
tag.expand if tag.locals.page == tag.globals.page
end
desc %{
Renders the contained elements unless the current contextual page is also the actual page.
This is typically used inside another tag (like <r:children:each>) to add conditional mark-up unless the child element is the current page.
*Usage:*
<pre><code><r:unless_self>...</r:unless_self></code></pre>
}
tag "unless_self" do |tag|
tag.expand unless tag.locals.page == tag.globals.page
end
desc %{
Renders the name of the author of the current page.
}
tag 'author' do |tag|
page = tag.locals.page
if author = page.created_by
author.name
end
end
desc %{
Renders the date based on the current page (by default when it was published or created).
The format attribute uses the same formating codes used by the Ruby @strftime@ function. By
default it's set to @%A, %B %d, %Y@. The @for@ attribute selects which date to render. Valid
options are @published_at@, @created_at@, @updated_at@, and @now@. @now@ will render the
current date/time, regardless of the page.
*Usage:*
<pre><code><r:date [format="%A, %B %d, %Y"] [for="published_at"]/></code></pre>
}
tag 'date' do |tag|
page = tag.locals.page
format = (tag.attr['format'] || '%A, %B %d, %Y')
time_attr = tag.attr['for']
date = if time_attr
case
when time_attr == 'now'
Time.now
when ['published_at', 'created_at', 'updated_at'].include?(time_attr)
page[time_attr]
else
raise TagError, "Invalid value for 'for' attribute."
end
else
page.published_at || page.created_at
end
adjust_time(date).strftime(format)
end
desc %{
Renders a link to the page. When used as a single tag it uses the page's title
for the link name. When used as a double tag the part in between both tags will
be used as the link text. The link tag passes all attributes over to the HTML
@a@ tag. This is very useful for passing attributes like the @class@ attribute
or @id@ attribute. If the @anchor@ attribute is passed to the tag it will
append a pound sign (<code>#</code>) followed by the value of the attribute to
the @href@ attribute of the HTML @a@ tag--effectively making an HTML anchor.
*Usage:*
<pre><code><r:link [anchor="name"] [other attributes...] /></code></pre>
or
<pre><code><r:link [anchor="name"] [other attributes...]>link text here</r:link></code></pre>
}
tag 'link' do |tag|
options = tag.attr.dup
anchor = options['anchor'] ? "##{options.delete('anchor')}" : ''
attributes = options.inject('') { |s, (k, v)| s << %{#{k.downcase}="#{v}" } }.strip
attributes = " #{attributes}" unless attributes.empty?
text = tag.double? ? tag.expand : tag.render('title')
%{<a href="#{tag.render('url')}#{anchor}"#{attributes}>#{text}</a>}
end
desc %{
Renders a trail of breadcrumbs to the current page. The separator attribute
specifies the HTML fragment that is inserted between each of the breadcrumbs. By
default it is set to @>@. The boolean nolinks attribute can be specified to render
breadcrumbs in plain text, without any links (useful when generating title tag).
*Usage:*
<pre><code><r:breadcrumbs [separator="separator_string"] [nolinks="true"] /></code></pre>
}
tag 'breadcrumbs' do |tag|
page = tag.locals.page
breadcrumbs = [page.breadcrumb]
nolinks = (tag.attr['nolinks'] == 'true')
page.ancestors.each do |ancestor|
tag.locals.page = ancestor
if nolinks
breadcrumbs.unshift tag.render('breadcrumb')
else
breadcrumbs.unshift %{<a href="#{tag.render('url')}">#{tag.render('breadcrumb')}</a>}
end
end
separator = tag.attr['separator'] || ' > '
breadcrumbs.join(separator)
end
desc %{
Renders the snippet specified in the @name@ attribute within the context of a page.
*Usage:*
<pre><code><r:snippet name="snippet_name" /></code></pre>
When used as a double tag, the part in between both tags may be used within the
snippet itself, being substituted in place of @<r:yield/>@.
*Usage:*
<pre><code><r:snippet name="snippet_name">Lorem ipsum dolor...</r:snippet></code></pre>
}
tag 'snippet' do |tag|
if name = tag.attr['name']
if snippet = Snippet.find_by_name(name.strip)
tag.locals.yield = tag.expand if tag.double?
tag.globals.page.render_snippet(snippet)
else
raise TagError.new('snippet not found')
end
else
raise TagError.new("`snippet' tag must contain `name' attribute")
end
end
desc %{
Used within a snippet as a placeholder for substitution of child content, when
the snippet is called as a double tag.
*Usage (within a snippet):*
<pre><code>
<div id="outer">
<p>before</p>
<r:yield/>
<p>after</p>
</div>
</code></pre>
If the above snippet was named "yielding", you could call it from any Page,
Layout or Snippet as follows:
<pre><code><r:snippet name="yielding">Content within</r:snippet></code></pre>
Which would output the following:
<pre><code>
<div id="outer">
<p>before</p>
Content within
<p>after</p>
</div>
</code></pre>
When called in the context of a Page or a Layout, @<r:yield/>@ outputs nothing.
}
tag 'yield' do |tag|
tag.locals.yield
end
desc %{
Inside this tag all page related tags refer to the page found at the @url@ attribute.
@url@s may be relative or absolute paths.
*Usage:*
<pre><code><r:find url="value_to_find">...</r:find></code></pre>
}
tag 'find' do |tag|
url = tag.attr['url']
raise TagError.new("`find' tag must contain `url' attribute") unless url
found = Page.find_by_url(absolute_path_for(tag.locals.page.url, url))
if page_found?(found)
tag.locals.page = found
tag.expand
end
end
desc %{
Randomly renders one of the options specified by the @option@ tags.
*Usage:*
<pre><code><r:random>
<r:option>...</r:option>
<r:option>...</r:option>
...
<r:random>
</code></pre>
}
tag 'random' do |tag|
tag.locals.random = []
tag.expand
options = tag.locals.random
option = options[rand(options.size)]
option if option
end
tag 'random:option' do |tag|
items = tag.locals.random
items << tag.expand
end
desc %{
Nothing inside a set of comment tags is rendered.
*Usage:*
<pre><code><r:comment>...</r:comment></code></pre>
}
tag 'comment' do |tag|
end
desc %{
Escapes angle brackets, etc. for rendering in an HTML document.
*Usage:*
<pre><code><r:escape_html>...</r:escape_html></code></pre>
}
tag "escape_html" do |tag|
CGI.escapeHTML(tag.expand)
end
desc %{
Outputs the published date using the format mandated by RFC 1123. (Ideal for RSS feeds.)
*Usage:*
<pre><code><r:rfc1123_date /></code></pre>
}
tag "rfc1123_date" do |tag|
page = tag.locals.page
if date = page.published_at || page.created_at
CGI.rfc1123_date(date.to_time)
end
end
desc %{
Renders a list of links specified in the @urls@ attribute according to three
states:
* @normal@ specifies the normal state for the link
* @here@ specifies the state of the link when the url matches the current
page's URL
* @selected@ specifies the state of the link when the current page matches
is a child of the specified url
The @between@ tag specifies what should be inserted in between each of the links.
*Usage:*
<pre><code><r:navigation urls="[Title: url | Title: url | ...]">
<r:normal><a href="<r:url />"><r:title /></a></r:normal>
<r:here><strong><r:title /></strong></r:here>
<r:selected><strong><a href="<r:url />"><r:title /></a></strong></r:selected>
<r:between> | </r:between>
</r:navigation>
</code></pre>
}
tag 'navigation' do |tag|
hash = tag.locals.navigation = {}
tag.expand
raise TagError.new("`navigation' tag must include a `normal' tag") unless hash.has_key? :normal
result = []
pairs = tag.attr['urls'].to_s.split('|').map do |pair|
parts = pair.split(':')
value = parts.pop
key = parts.join(':')
[key.strip, value.strip]
end
pairs.each do |title, url|
compare_url = remove_trailing_slash(url)
page_url = remove_trailing_slash(self.url)
hash[:title] = title
hash[:url] = url
case page_url
when compare_url
result << (hash[:here] || hash[:selected] || hash[:normal]).call
when Regexp.compile( '^' + Regexp.quote(url))
result << (hash[:selected] || hash[:normal]).call
else
result << hash[:normal].call
end
end
between = hash.has_key?(:between) ? hash[:between].call : ' '
result.reject { |i| i.blank? }.join(between)
end
[:normal, :here, :selected, :between].each do |symbol|
tag "navigation:#{symbol}" do |tag|
hash = tag.locals.navigation
hash[symbol] = tag.block
end
end
[:title, :url].each do |symbol|
tag "navigation:#{symbol}" do |tag|
hash = tag.locals.navigation
hash[symbol]
end
end
desc %{
Renders the containing elements only if Radiant in is development mode.
*Usage:*
<pre><code><r:if_dev>...</r:if_dev></code></pre>
}
tag 'if_dev' do |tag|
tag.expand if dev?(tag.globals.page.request)
end
desc %{
The opposite of the @if_dev@ tag.
*Usage:*
<pre><code><r:unless_dev>...</r:unless_dev></code></pre>
}
tag 'unless_dev' do |tag|
tag.expand unless dev?(tag.globals.page.request)
end
desc %{
Prints the page's status as a string. Optional attribute 'downcase'
will cause the status to be all lowercase.
*Usage:*
<pre><code><r:status [downcase='true'] /></code></pre>
}
tag 'status' do |tag|
status = tag.globals.page.status.name
return status.downcase if tag.attr['downcase']
status
end
desc %{
The namespace for 'meta' attributes. If used as a singleton tag, both the description
and keywords fields will be output as <meta /> tags unless the attribute 'tag' is set to 'false'.
*Usage*:
<pre><code> <r:meta [tag="false"] />
<r:meta>
<r:description [tag="false"] />
<r:keywords [tag="false"] />
</r:meta>
</code></pre>
}
tag 'meta' do |tag|
if tag.double?
tag.expand
else
tag.render('description', tag.attr) +
tag.render('keywords', tag.attr)
end
end
desc %{
Emits the page description field in a meta tag, unless attribute
'tag' is set to 'false'.
*Usage*:
<pre><code> <r:meta:description [tag="false"] /> </code></pre>
}
tag 'meta:description' do |tag|
show_tag = tag.attr['tag'] != 'false' || false
description = CGI.escapeHTML(tag.locals.page.description)
if show_tag
"<meta name=\"description\" content=\"#{description}\" />"
else
description
end
end
desc %{
Emits the page keywords field in a meta tag, unless attribute
'tag' is set to 'false'.
*Usage*:
<pre><code> <r:meta:keywords [tag="false"] /> </code></pre>
}
tag 'meta:keywords' do |tag|
show_tag = tag.attr['tag'] != 'false' || false
keywords = CGI.escapeHTML(tag.locals.page.keywords)
if show_tag
"<meta name=\"keywords\" content=\"#{keywords}\" />"
else
keywords
end
end
private
def children_find_options(tag)
attr = tag.attr.symbolize_keys
options = {}
[:limit, :offset].each do |symbol|
if number = attr[symbol]
if number =~ /^\d{1,4}$/
options[symbol] = number.to_i
else
raise TagError.new("`#{symbol}' attribute of `each' tag must be a positive number between 1 and 4 digits")
end
end
end
by = (attr[:by] || 'published_at').strip
order = (attr[:order] || 'asc').strip
order_string = ''
if self.attributes.keys.include?(by)
order_string << by
else
raise TagError.new("`by' attribute of `each' tag must be set to a valid field name")
end
if order =~ /^(asc|desc)$/i
order_string << " #{$1.upcase}"
else
raise TagError.new(%{`order' attribute of `each' tag must be set to either "asc" or "desc"})
end
options[:order] = order_string
status = (attr[:status] || 'published').downcase
unless status == 'all'
stat = Status[status]
unless stat.nil?
options[:conditions] = ["(virtual = ?) and (status_id = ?)", false, stat.id]
else
raise TagError.new(%{`status' attribute of `each' tag must be set to a valid status})
end
else
options[:conditions] = ["virtual = ?", false]
end
options
end
def remove_trailing_slash(string)
(string =~ %r{^(.*?)/$}) ? $1 : string
end
def tag_part_name(tag)
tag.attr['part'] || 'body'
end
def build_regexp_for(tag, attribute_name)
ignore_case = tag.attr.has_key?('ignore_case') && tag.attr['ignore_case']=='false' ? nil : true
begin
regexp = Regexp.new(tag.attr['matches'], ignore_case)
rescue RegexpError => e
raise TagError.new("Malformed regular expression in `#{attribute_name}' argument of `#{tag.name}' tag: #{e.message}")
end
regexp
end
def relative_url_for(url, request)
File.join(request.relative_url_root, url)
end
def absolute_path_for(base_path, new_path)
if new_path.first == '/'
new_path
else
File.expand_path(File.join(base_path, new_path))
end
end
def page_found?(page)
page && !(FileNotFoundPage === page)
end
def boolean_attr_or_error(tag, attribute_name, default)
attribute = attr_or_error(tag, :attribute_name => attribute_name, :default => default.to_s, :values => 'true, false')
(attribute.to_s.downcase == 'true') ? true : false
end
def attr_or_error(tag, options = {})
attribute_name = options[:attribute_name].to_s
default = options[:default]
values = options[:values].split(',').map!(&:strip)
attribute = (tag.attr[attribute_name] || default).to_s
raise TagError.new(%{'#{attribute_name}' attribute of #{tag} tag must be one of: #{values.join(',')}}) unless values.include?(attribute)
return attribute
end
def dev?(request)
dev_host = Radiant::Config['dev.host']
request && ((dev_host && dev_host == request.host) || request.host =~ /^dev\./)
end
end
