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MetaTags
Search Engine Optimization (SEO) plugin for Ruby on Rails applications.
Download
If you’re using Rails 2.1, you can simply use "script/plugin". It will export all the code from GitHub into "vendor/plugins":
script/plugin install git://github.com/kpumuk/meta-tags.git
If you are using Rails prior to 2.1, use the following:
cd vendor/plugins git clone git://github.com/kpumuk/meta-tags.git rm -rf meta-tags/.git cd ../..
To continuously track meta-tags development, it’s probably best to install it as a plugin using some vendor branch management tool like Braid:
gem install evilchelu-braid
Using Braid to add a Rails plugin is simple:
# (make sure you've commited everything first) braid add -p git://github.com/kpumuk/meta-tags.git # now you should have the library in vendor/plugins/meta-tags
Titles
Page titles are very important for Search engines. The titles in the browser are displayed in the title bar. The search engines would look at the this title bar to determine what the page is all about.
<title>Some Page Title</title> <title>Page Title | Site Title</title>
Recommended title tag length: up to 70 characters, 10 words.
Description
Description tags are called meta tags as they are not displayed by the browsers as that of titles. But these descriptions may be displayed by some search engines. They are used to describe the contents of a page in 2 or 3 sentences.
<meta name="description" content="All text about keywords, other keywords" />
Recommended description tag length: up to 160 characters.
Keywords
Meta keywords tag are used to place your keywords that you think a surfer would search in Search engines. Repeating keywords unnecessarily would be considered spam and you may get permanently banned from SERP’s
<meta name="keywords" content="keyword1, keyword2, keyword3" />
Recommended keywords tag length: up to 255 characters, 20 words.
MetaTags Usage
First, add this code to your main layout:
<head>
<%= display_meta_tags :site => 'My website' %>
</head>
Then, to set the page title, add this to each of your views (see below for other options):
<h1><%= title 'My page title' %></h1>
When views are rendered, the page title will be included in the right spots:
<head>
<title>My website | My page title</title>
</head>
<body>
<h1>My page title</h1>
</body>
You can find allowed options for display_meta_tags method below.
Using MetaTags in controller
You can define following instance variables:
@page_title = 'Member Login' @page_description = 'Member login page.' @page_keywords = 'Site, Login, Members'
Also you could use set_meta_tags method to define all meta tags simultaneously:
set_meta_tags :title => 'Member Login',
:description => 'Member login page.',
:keywords => 'Site, Login, Members'
You can find allowed options for set_meta_tags method below.
Using MetaTags in view
To set meta tags you can use following methods:
<% title 'Member Login' %> <% description 'Member login page.' %> <% keywords 'Member login page.' %>
Also there is set_meta_tags method exists:
<% set_meta_tags :title => 'Member Login',
:description => 'Member login page.',
:keywords => 'Site, Login, Members' %>
The title methods returns title itself, so you can use it to show the title somewhere on the page:
<h1><%= title 'Member Login' %></h1>
If you want to set the title and display another text, use this:
<h1><%= title 'Member Login', 'Here you can login to the site:' %></h1>
Allowed options for display_meta_tags and set_meta_tags methods
Use these options to customize the title format:
- :site — site title;
- :title — page title;
- :description — page description;
- :keywords — page keywords;
- :prefix — text between site name and separator;
- :separator — text used to separate website name from page title;
- :suffix — text between separator and page title;
- :lowercase — when true, the page name will be lowercase;
- :reverse — when true, the page and site names will be reversed.
And here are a few examples to give you ideas.
<%= title :separator => "—" %> <%= title :prefix => false, :separator => ":" %> <%= title :lowercase => true %> <%= title :reverse => true, :prefix => false %>
Allowed values
You can specify title as a string or array:
set_meta_tags :title => ['part1', 'part2'], :site => 'site' # site | part1 | part2 set_meta_tags :title => ['part1', 'part2'], :reverse => true, :site => 'site' # part2 | part1 | site
Keywords can be passed as string of comma-separated values, or as an array:
set_meta_tags :keywords => ['tag1', 'tag2'] # tag1, tag2
Description is a string (HTML will be stripped from output string).
Alternatives
There are several plugins influenced me to create this one:
- Headliner: github.com/mokolabs/headliner
- meta_on_rals: github.com/ashchan/meta_on_rails
Credits
Dmytro Shteflyuk <kpumuk@kpumuk.info> kpumuk.info
