Module: ActionView::Helpers

Defined in:
lib/bcms_tools/view_helpers.rb

Defined Under Namespace

Modules: CaptureHelper

Class Method Summary collapse

Class Method Details

.category_menu_items(aRootCategory, aOptions = {}) ⇒ Object

:base_url (String) : prepended to menu urls eg. /products :category (String) : name of current category eg. ‘Shoes’ :id_prefix (String) : will be prepended to ids of menu eg. ‘section_’



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# File 'lib/bcms_tools/view_helpers.rb', line 140

def category_menu_items(aRootCategory, aOptions={})
	aBaseUrl = (aOptions[:base_url] || '')
	aIdPrefix = (aOptions[:id_prefix] || '')
	category = aOptions[:category]
	category = category.name.urlize('+') if category.is_a?(Category)
	tree_nodes = construct_category_tree(aRootCategory)
	
	# now turn tree_nodes into menu items, still as array of levels
	tree_items = []
	last_lvl = nil
	tree_nodes.each do |lvl|
		item_level = []
		lvl.each do |node|
			name = (node.name.index('/') ? File.basename(node.name) : node.name)
			item = {:id => aIdPrefix+node.id.to_s, :name => name }	
			item[:node] = node
			if last_lvl && parent_item = last_lvl.find {|i| i[:node].id == node.parent_id}
				parent_item[:children] ||= []
				parent_item[:children] << item
				item[:url] = parent_item[:url]
				item[:url] += '+' unless item[:url]=='' || item[:url].ends_with?('/') || item[:url].ends_with?('+')
				item[:url] += name.urlize('-')
			else
				item[:url] = File.join(aBaseUrl,name.urlize('-'))
			end
			
			item[:selected] = true if category && (category==node.name.urlize('+'))
			item[:order] = aOptions[:order_proc].call(item) if aOptions.has_key?(:order_proc)
			item_level << item
		end
		tree_items << item_level
		last_lvl = item_level
	end
	# clean
	tree_items.each do |lvl|
		lvl.each do |i| 
			i.filter_include!([:url,:selected,:id,:name,:children,:order])
			i[:children].sort! {|a,b| a[:order].to_i <=> b[:order].to_i} if i[:children].is_a?(Array)
		end
	end
	tree_items.first.sort! {|a,b| a[:order].to_i <=> b[:order].to_i}
	tree_items.first
end

.construct_category_tree(aRootCategory) ⇒ Object

Construct tree_nodes, an array of arrays - each array a level in tree. Each level is a list children to the parents in the level before



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# File 'lib/bcms_tools/view_helpers.rb', line 117

def construct_category_tree(aRootCategory)
	level_nodes = case aRootCategory
		when String
			[Category.find_by_name(aRootCategory)]
		when Category 
			[aRootCategory]
		when CategoryType
			[aRootCategory.categories.top_level]
		else
			CategoryType.first.categories.top_level
	end
	tree_nodes = []
	begin
		tree_nodes << level_nodes
		ids = level_nodes.map {|n| n.id}
		level_nodes = Category.find_all_by_parent_id(ids)  #Category.all({:conditions => ['parent_id in (?)',ids.join(',')]})
	end while !level_nodes.empty?
	tree_nodes
end

.default_content_for(name, &block) ⇒ Object 



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# File 'lib/bcms_tools/view_helpers.rb', line 73

def default_content_for(name, &block)
	name = name.kind_of?(Symbol) ? ":#{name}" : name
	out = eval("yield #{name}", block.binding)
	concat(out || capture(&block))
end

.google_analytics(aTrackingId = nil) ⇒ Object 



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# File 'lib/bcms_tools/view_helpers.rb', line 7

def google_analytics(aTrackingId = nil)
	return '' if request.host.begins_with?('cms.')
	aTrackingId ||= APP_CONFIG[:google_analytics_tracking_id]
	return '' unless aTrackingId.to_nil

	<<-EOS
		<script type="text/javascript">
		var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www.");
		document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E"));
		</script>
		<script type="text/javascript">
		try {
		var pageTracker = _gat._getTracker("#{aTrackingId}");
		pageTracker._trackPageview();
		} catch(err) {}
		</script>
	EOS
end

.mailto_a_friend(aSubject, aOptions = {}) ⇒ Object 



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# File 'lib/bcms_tools/view_helpers.rb', line 26

def mailto_a_friend(aSubject,aOptions={})
	<<-EOS
		<SCRIPT LANGUAGE="JavaScript">
		<!-- Begin
		
		//Script by Tronn: http://come.to/tronds
		//Submitted to JavaScript Kit (http://javascriptkit.com)
		//Visit http://javascriptkit.com for this script
		
		var initialsubj="#{aSubject}"
		var initialmsg="Hello! You may be interested in this : "+window.location+" \n \n \n"
		var good;
		function checkEmailAddress(field) {
		
		var goodEmail = field.value.match(/\b(^(\S+@).+((\.com)|(\.net)|(\.edu)|(\.mil)|(\.gov)|(\.org)|(\.info)|(\.sex)|(\.biz)|(\.aero)|(\.coop)|(\.museum)|(\.name)|(\.pro)|(\..{2,2}))$)\b/gi);
		if (goodEmail) {
		good = true;
		}
		else {
		alert('Please enter a valid address.');
		field.focus();
		field.select();
		good = false;
			 }
		}
		u = window.location;
		function mailThisUrl() {
		good = false
		checkEmailAddress(document.mailto_a_friend.email);
		if (good) {
		
		//window.location = "mailto:"+document.mailto_a_friend.email.value+"?subject="+initialsubj+"&body="+document.title+" "+u;
		window.location = "mailto:"+document.mailto_a_friend.email.value+"?subject="+initialsubj+"&body="+initialmsg
			 }
		}
		//  End -->
		</script>
		
		
		<form class="mailto_a_friend" name="mailto_a_friend">
		<input class="mailto_a_friend" type="text" name="email" size="26" value="Email Address Here" onFocus="this.value=''" onMouseOver="window.status='Enter email address here and tell a friend about this...'; return true" onMouseOut="window.status='';return true">
		<input class="mailto_a_friend" type="button" value="Email to a friend" onMouseOver="window.status='Enter email address above and click this to send an email to a friend!'; return true" onMouseOut="window.status='';return true" onClick="mailThisUrl();">
		</form>		

	EOS
end

.render_menu2(aOptions = nil) ⇒ Object

render_menu(), or more precisely menu_items() doesn’t seem to work well for rendering a top menu when you want the ancestor item of the current page highlighted. The problem is that it compares each menu item with the current page, when the current page may be several levels deep under one of the menu items.

Fortunately the :page option allows the current page to be given, so the correct output can be produced if we manipulate this option.

This does the trick :



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# File 'lib/bcms_tools/view_helpers.rb', line 90

def render_menu2(aOptions=nil)
	opts = {
		:from_top => 0,	# menu root is how many levels down from root (0 = roots immediate children)
		:depth => 1,		# depth of menu from menu root
		:show_all_siblings => true
	}
	opts.merge!(aOptions) if aOptions

    selected_page = opts[:page] || @page
	ancestors = selected_page.ancestors
	top_section = ancestors[opts[:from_top].to_i]
	return '' unless top_section
	opts[:path] = top_section.path
	
	ancestors << selected_page if (selected_page.section == top_section) || (selected_page != selected_page.section.pages.first)
	
	result_i = Math.min(opts[:from_top] + opts[:depth],ancestors.length-1)
	opts[:page] = ancestors[result_i]
    opts[:items] ||= menu_items(opts)

	return '' if opts[:items].empty? || (opts[:items].length == 1 && !opts[:items].first[:children])	# return blank if only a single menu item
	
	render_menu opts
end