ActiveSeo

Optimize ActiveRecord models with support for SEO, Twitter and Open Graph meta.

Add this line to your application's Gemfile:

gem 'active_seo'

And then execute:

$ bundle

Or install it yourself as:

$ gem install active_seo

Then run the generator that will create a migration for the SeoMetum model and an initializer:

$ rails g active_seo:install

And finally run the migrations:

$ rails db:migrate

To add SEO meta support to an ActiveRecord model include the ActiveSeo::Meta Concern or use the has_seo class method:

class Page < ApplicationRecord
  # Using concern
  include ActiveSeo::Meta

  # Or using `has_seo` class method
  has_seo
end

SeoMetum's attributes will be automatically delegated by your model with the seo prefix and you can use them in forms:

<%= form_for @page do |f| %>
  <%= f.text_field :seo_title %>
  <%= f.text_area  :seo_description %>
  <%= f.text_area  :seo_keywords %>
  <%= f.check_box  :seo_noindex %>
  <%= f.check_box  :seo_nofollow %>
<% end %>

To get a SEO attribute:

@page.seo_title

To get all SEO attributes:

@page.seo_meta

The install generator will create an initializer:

ActiveSeo.setup do |config|
  # config.title_limit          = 70
  # config.description_limit    = 160
  # config.keywords_limit       = 255
  # config.keywords_separator   = ', '
  # config.title_fallback       = true
  # config.description_fallback = true
  # config.generate_keywords    = true

  # config.opengraph_setup do |og|
  #   og.type      = 'website'
  #   og.site_name = 'Site Name'
  # end

  # config.twitter_setup do |tw|
  #   tw.card    = 'summary'
  #   tw.site    = '@site'
  #   tw.creator = '@author'
  # end
end

You can set global defaults for attribute validations, automatic meta generation, OpenGraph and Twitter meta.

Settings title_fallback and description_fallback can be a Symbol or an Array of symbols that reference a model attribute/method which will be used to autogenerate the title and description attributes. When using an Array the first attribute that returns a value will be used.

This behavior can also be configured on a model level:

class Page < ApplicationRecord
  # Using concern
  include ActiveSeo::Meta

  # With `seo_setup` method
  seo_setup title_fallback: :name, description_fallback: [:content, :excerpt]

  # Or using `has_seo` class method
  has_seo title_fallback: :name, description_fallback: [:content, :excerpt]
end

If you want to define non-global OpenGraph and Twitter configurations you can create a custom meta contextualizer. ActiveSeo will look for a class defined in the model:

class Page < ApplicationRecord
  # Using concern
  include ActiveSeo::Meta

  # With `seo_contextualizer` method
  seo_contextualizer 'CustomContextualizer'

  # Or using `has_seo` class method
  has_seo contextualizer: 'CustomContextualizer'
end

Or for a class located in app/contextualizers with a name like ModelContextualizer.

class PageContextualizer < ActiveSeo::Contextualizer
  # Using a proc
  og_meta :image, -> obj { { _: obj.image, width: obj.image_width } }
  # Using a method defined in the contextualizer
  og_meta :video, :video_url

  # Using an attribute from the record
  twitter_meta :description, :seo_description
  # Using a string
  twitter_meta :card, 'app'

  # Use `record` to get record attributes
  def video_url
    record.video_url
  end
end

Inside the contextualizer you can define values using a Proc which gives you access to the record, a Symbol which will look for an attibute or method first inside the contextualizer and then in the model, or a String for a static value.

This gem does not provide helpers to output the meta, but was designed to provide a hash containing all the attributes the way the Meta Tags gem requires them.

So, if you're using Meta Tags you can do the following:

<%= display_meta_tags(@page.seo_meta) %>

After checking out the repo, run bin/setup to install dependencies. Then, run rake test to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment. To install this gem onto your local machine, run bundle exec rake install.

Bug reports and pull requests are welcome on GitHub at https://github.com/hardpixel/active-seo.

The gem is available as open source under the terms of the MIT License.