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# app/helpers/application_helper.rb:
# Methods added to this helper will be available to all views (i.e. templates)
# in the application.
#
# Copyright (c) 2007 UK Citizens Online Democracy. All rights reserved.
# Email: francis@mysociety.org; WWW: http://www.mysociety.org/
#
# $Id: application_helper.rb,v 1.22 2008-07-09 07:24:50 francis Exp $
module ApplicationHelper
# URL generating functions are needed by all controllers (for redirects),
# views (for links) and mailers (for use in emails), so include them into
# all of all.
include LinkToHelper
# Copied from error_messages_for in active_record_helper.rb
def foi_error_messages_for(*params)
options = params.last.is_a?(Hash) ? params.pop.symbolize_keys : {}
objects = params.collect {|object_name| instance_variable_get("@#{object_name}") }.compact
count = objects.inject(0) {|sum, object| sum + object.errors.count }
unless count.zero?
html = {}
[:id, :class].each do |key|
if options.include?(key)
value = options[key]
html[key] = value unless value.blank?
else
html[key] = 'errorExplanation'
end
end
error_messages = objects.map {|object| object.errors.full_messages.map {|msg| content_tag(:li, msg) } }
content_tag(:div,
content_tag(:ul, error_messages),
html
)
else
''
end
end
# Highlight words, also escapes HTML (other than spans that we add)
def highlight_words(t, words, html = true)
if html
t = h(t)
end
if html
t = highlight(t, words, '<span class="highlight">\1</span>')
else
t = highlight(t, words, '*\1*')
end
return t
end
def highlight_and_excerpt(t, words, excount, html = true)
newt = excerpt(t, words[0], excount)
if not newt
newt = excerpt(t, '', excount)
end
t = newt
t = highlight_words(t, words, html)
return t
end
end
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