Class: TopHat::OpenGraphHelper::OpenGraphGenerator

Inherits:
Object
  • Object
show all
Includes:
ActionView::Helpers
Defined in:
lib/tophat/opengraph.rb

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) {|_self| ... } ⇒ OpenGraphGenerator

Returns a new instance of OpenGraphGenerator.

Yields:

  • (_self)

Yield Parameters:



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# File 'lib/tophat/opengraph.rb', line 7

def initialize(options={}, &block)
  @app_id = options.delete(:app_id) if options && options.has_key?(:app_id)
  @admins = options.delete(:admins) if options && options.has_key?(:admins)
  @graph_data = {}

  yield self if block_given?
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method, *args, &block) ⇒ Object

:nodoc



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# File 'lib/tophat/opengraph.rb', line 48

def method_missing(method, *args, &block) #:nodoc
  @graph_data ||= {}
  @graph_data[method] = args.shift
end

Instance Method Details

#admins ⇒ Object 



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# File 'lib/tophat/opengraph.rb', line 26

def admins
  tag(:meta, :property => 'fb:admins', :content => [*@admins].join(',')) + "\n".html_safe
end

#app_id ⇒ Object 



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# File 'lib/tophat/opengraph.rb', line 22

def app_id
  tag(:meta, :property => 'fb:app_id', :content => @app_id) + "\n".html_safe
end

#graph_data ⇒ Object 



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# File 'lib/tophat/opengraph.rb', line 30

def graph_data
  output = ActiveSupport::SafeBuffer.new
  @graph_data.each do |key, value|
    output << tag(:meta, :property => "og:#{key}", :content => value)
    output << "\n".html_safe if @graph_data.size > 1
  end
  output
end

#has_graph_data? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/tophat/opengraph.rb', line 44

def has_graph_data?
  !!@graph_data
end

#merge(options = {}) {|_self| ... } ⇒ Object

Yields:

  • (_self)

Yield Parameters:



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# File 'lib/tophat/opengraph.rb', line 15

def merge(options={}, &block)
  yield self if block_given?

  @app_id = options.delete(:app_id) if options && options.has_key?(:app_id)
  @admins = options.delete(:admins) if options && options.has_key?(:admins)
end

#to_html ⇒ Object 



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# File 'lib/tophat/opengraph.rb', line 53

def to_html
  output = ActiveSupport::SafeBuffer.new
  output << app_id if defined?(@app_id) && @app_id
  output << admins if defined?(@admins) && @admins
  output << graph_data if has_graph_data?
  output
end

#type(t) ⇒ Object 



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# File 'lib/tophat/opengraph.rb', line 39

def type(t)
  @graph_data ||= {}
  @graph_data[:type] = t
end