Module: CanonicalRails::TagHelper

Defined in:
app/helpers/canonical_rails/tag_helper.rb

Instance Method Summary collapse

Instance Method Details

#canonical_host ⇒ Object 



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# File 'app/helpers/canonical_rails/tag_helper.rb', line 16

def canonical_host
  CanonicalRails.host || request.host
end

#canonical_href(host = canonical_host) ⇒ Object 



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# File 'app/helpers/canonical_rails/tag_helper.rb', line 20

def canonical_href(host=canonical_host)
  raw "#{request.protocol}#{host}#{path_without_html_extension}#{trailing_slash_if_needed}#{whitelisted_query_string}"
end

#canonical_tag(host = canonical_host) ⇒ Object 



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# File 'app/helpers/canonical_rails/tag_helper.rb', line 24

def canonical_tag(host=canonical_host)
  tag(:link, :href => canonical_href(host), :rel => 'canonical')
end

#path_without_html_extension ⇒ Object 



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# File 'app/helpers/canonical_rails/tag_helper.rb', line 12

def path_without_html_extension
  request.path.sub(/\.html$/, '')
end

#trailing_slash_if_needed ⇒ Object 



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# File 'app/helpers/canonical_rails/tag_helper.rb', line 8

def trailing_slash_if_needed
  "/" if trailing_slash_needed? and request.path != '/'
end

#trailing_slash_needed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/helpers/canonical_rails/tag_helper.rb', line 4

def trailing_slash_needed?
  CanonicalRails.sym_collection_actions.include? request.params['action'].to_sym
end

#whitelisted_params ⇒ Object 



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# File 'app/helpers/canonical_rails/tag_helper.rb', line 28

def whitelisted_params
  request.params.select do |key, value|
    value.present? and
    CanonicalRails.sym_whitelisted_parameters.include? key.to_sym
  end
end

#whitelisted_query_string ⇒ Object 



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# File 'app/helpers/canonical_rails/tag_helper.rb', line 35

def whitelisted_query_string
  "?" + Rack::Utils.build_nested_query(whitelisted_params) if whitelisted_params.present?
end