Module: ParagraphHelper

Defined in:
app/helpers/paragraph_helper.rb

Instance Method Summary collapse

Instance Method Details

#prettify_notification(str = '') ⇒ Object 



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# File 'app/helpers/paragraph_helper.rb', line 3

def prettify_notification str=''
  str.gsub!(/\B(##)\w*[a-zA-Z0-9_]+\w*/) do |x| 
    obj = (x.split('_')[0][2..100]).constantize.find_all_by_id(x.split('_')[1]).last
    if can? :read, obj
      link_to obj.to_s, obj
    else
      obj.to_s
    end
  end
  str.html_safe
end

#truncate_html(text, len = 30, at_end = ' ...') ⇒ Object

Return truncating in html raw format



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# File 'app/helpers/paragraph_helper.rb', line 19

def truncate_html(text, len = 30, at_end = ' ...')
  p = REXML::Parsers::PullParser.new((text.presence || '<p> </p>').gsub(/[\r\n\t]/, ''))
  tags = []
  new_len = len
  results = ''
  while p.has_next? && new_len > 0
    p_e = p.pull
    case p_e.event_type
    when :start_element
      tags.push p_e[0]
      results << "<#{tags.last}#{attrs_to_s(p_e[1])}>"
    when :end_element
      results << "</#{tags.pop}>"
    when :text
      results << p_e[0][0..new_len]
      new_len -= p_e[0].length
    else
      results << "<!-- #{p_e.inspect} -->"
    end
  end
  if at_end && (sanitize(text).try(:length).to_i) > len
    results << at_end
  end
  tags.reverse.each do |tag|
    results << "</#{tag}>"
  end
  raw(results)
end