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Contents
module ParagraphHelper
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
# required for truncating html
require 'rexml/parsers/pullparser'
# Return truncating in html raw format
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
private
def attrs_to_s(attrs)
if attrs.empty?
''
else
' ' + attrs.to_a.map { |attr| %{#{attr[0]}="#{attr[1]}"} }.join(' ')
end
end
end
Version data entries
23 entries across 23 versions & 1 rubygems