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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: hello@mysociety.org; WWW: http://www.mysociety.org/
require 'languages'
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
# Site-wide access to configuration settings
include ConfigHelper
# Useful for sending emails
include MailerHelper
# 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 = "".html_safe
for object in objects
object.errors.each do |attr, message|
error_messages << content_tag(:li, h(message))
end
end
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
highlight(h(t), words, :highlighter => '<span class="highlight">\1</span>').html_safe
else
highlight(t, words, :highlighter => '*\1*')
end
end
def highlight_and_excerpt(t, words, excount, html = true)
newt = excerpt(t, words[0], :radius => excount)
if not newt
newt = excerpt(t, '', :radius => excount)
end
t = newt
t = highlight_words(t, words, html)
return t
end
def locale_name(locale)
return LanguageNames::get_language_name(locale)
end
# (unfortunately) ugly way of getting id of generated form element
# ids
# see http://chrisblunt.com/2009/10/12/rails-getting-the-id-of-form-fields-inside-a-fields_for-block/
def sanitized_object_name(object_name)
object_name.gsub(/\]\[|[^-a-zA-Z0-9:.]/,"_").sub(/_$/,"")
end
def sanitized_method_name(method_name)
method_name.sub(/\?$/, "")
end
def form_tag_id(object_name, method_name, locale=nil)
if locale.nil?
return "#{sanitized_object_name(object_name.to_s)}_#{sanitized_method_name(method_name.to_s)}"
else
return "#{sanitized_object_name(object_name.to_s)}_#{sanitized_method_name(method_name.to_s)}__#{locale.to_s}"
end
end
def admin_value(v)
if v.nil?
nil
elsif v.instance_of?(Time)
admin_date(v)
else
h(v)
end
end
def admin_date(date)
ago_text = _('{{length_of_time}} ago', :length_of_time => time_ago_in_words(date))
exact_date = I18n.l(date, :format => "%e %B %Y %H:%M:%S")
return "#{exact_date} (#{ago_text})"
end
# Note that if the admin interface is proxied via another server, we can't
# rely on a sesssion being shared between the front end and admin interface,
# so need to check the status of the user.
def is_admin?
return !session[:using_admin].nil? || (!@user.nil? && @user.super?)
end
def cache_if_caching_fragments(*args, &block)
if AlaveteliConfiguration::cache_fragments
cache(*args) { yield }
else
yield
end
end
# We only want to cache request lists that have a reasonable chance of not expiring
# before they're requested again. Don't cache lists returned from specific searches
# or anything except the first page of results, just the first page of the default
# views
def request_list_cache_key
cacheable_param_list = ['controller', 'action', 'locale', 'view']
if params.keys.all?{ |key| cacheable_param_list.include?(key) }
"request-list-#{@view}-#{@locale}"
else
nil
end
end
def event_description(event)
body_link = public_body_link_absolute(event.info_request.public_body)
user_link = request_user_link_absolute(event.info_request)
date = simple_date(event.created_at)
case event.event_type
when 'sent'
_('Request sent to {{public_body_name}} by {{info_request_user}} on {{date}}.',
:public_body_name => body_link,
:info_request_user => user_link,
:date => date)
when 'followup_sent'
case event.calculated_state
when 'internal_review'
_('Internal review request sent to {{public_body_name}} by {{info_request_user}} on {{date}}.',
:public_body_name => body_link,
:info_request_user => user_link,
:date => date)
when 'waiting_response'
_('Clarification sent to {{public_body_name}} by {{info_request_user}} on {{date}}.',
:public_body_name => body_link,
:info_request_user => user_link,
:date => date)
else
_('Follow up sent to {{public_body_name}} by {{info_request_user}} on {{date}}.',
:public_body_name => body_link,
:info_request_user => user_link,
:date => date)
end
when 'response'
_('Response by {{public_body_name}} to {{info_request_user}} on {{date}}.',
:public_body_name => body_link,
:info_request_user => user_link,
:date => date)
when 'comment'
_('Request to {{public_body_name}} by {{info_request_user}}. Annotated by {{event_comment_user}} on {{date}}.',
:public_body_name => body_link,
:info_request_user => user_link,
:event_comment_user => user_link_absolute(event.comment.user),
:date => date)
end
end
end
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