discourse/app/helpers/application_helper.rb

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require 'current_user'
require 'canonical_url'
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require_dependency 'guardian'
require_dependency 'unread'
require_dependency 'age_words'
module ApplicationHelper
include CurrentUser
include CanonicalURL::Helpers
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def with_format(format, &block)
old_formats = formats
self.formats = [format]
block.call
self.formats = old_formats
nil
end
def age_words(secs)
AgeWords.age_words(secs)
end
def guardian
@guardian ||= Guardian.new(current_user)
end
def mini_profiler_enabled?
defined?(Rack::MiniProfiler) && admin?
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end
def admin?
current_user.try(:admin?)
end
# Creates open graph and twitter card meta data
def crawlable_meta_data(opts=nil)
opts ||= {}
opts[:image] ||= "#{Discourse.base_url}#{SiteSetting.logo_small_url}"
opts[:url] ||= "#{Discourse.base_url}#{request.fullpath}"
# Add opengraph tags
result = tag(:meta, property: 'og:site_name', content: SiteSetting.title) << "\n"
result << tag(:meta, property: 'twitter:card', content: "summary")
[:image, :url, :title, :description].each do |property|
if opts[property].present?
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escape = (property != :image)
result << tag(:meta, {property: "og:#{property}", content: opts[property]}, nil, escape) << "\n"
result << tag(:meta, {property: "twitter:#{property}", content: opts[property]}, nil, escape) << "\n"
end
end
result
end
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end