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# app/controllers/general_controller.rb:
# For pages like front page, general search, that aren't specific to a
# particular model.
#
# Copyright (c) 2008 UK Citizens Online Democracy. All rights reserved.
# Email: francis@mysociety.org; WWW: http://www.mysociety.org/
#
# $Id: general_controller.rb,v 1.57 2009-10-03 10:23:43 francis Exp $
begin
require 'xmlsimple'
rescue LoadError
# Debian maintainers put their xmlsimple in a different location :(
require 'lib/xmlsimple'
end
require 'open-uri'
class GeneralController < ApplicationController
# New, improved front page!
def frontpage
medium_cache
behavior_cache do
# get some example searches and public bodies to display
# either from config, or based on a (slow!) query if not set
body_short_names = MySociety::Config.get('FRONTPAGE_PUBLICBODY_EXAMPLES', '').split(/\s*;\s*/).map{|s| "'%s'" % s.gsub(/'/, "''") }.join(", ")
@locale = self.locale_from_params()
locale_condition = 'public_body_translations.locale = ?'
conditions = [locale_condition, @locale]
PublicBody.with_locale(@locale) do
if body_short_names.empty?
# This is too slow
@popular_bodies = PublicBody.find(:all,
:select => "public_bodies.*, (select count(*) from info_requests where info_requests.public_body_id = public_bodies.id) as c",
:order => "c desc",
:limit => 32,
:conditions => conditions,
:joins => :translations
)
else
conditions[0] += " and public_bodies.url_name in (" + body_short_names + ")"
@popular_bodies = PublicBody.find(:all,
:conditions => conditions,
:joins => :translations)
end
end
@search_examples = MySociety::Config.get('FRONTPAGE_SEARCH_EXAMPLES', '').split(/\s*;\s*/)
if @search_examples.empty?
@search_examples = @popular_bodies.map { |body| body.name }
end
# Get some successful requests #
begin
query = 'variety:response (status:successful OR status:partially_successful)'
# query = 'variety:response' # XXX debug
sortby = "described"
xapian_object = perform_search([InfoRequestEvent], query, sortby, 'request_title_collapse', 8)
@successful_request_events = xapian_object.results.map { |r| r[:model] }
@successful_request_events = @successful_request_events.sort_by { |e| e.described_at }.reverse
rescue
@successful_request_events = []
end
end
end
# Display blog entries
def blog
medium_cache
@feed_autodetect = []
feed_url = MySociety::Config.get('BLOG_FEED', '')
if not feed_url.empty?
content = open(feed_url).read
@data = XmlSimple.xml_in(content)
@channel = @data['channel'][0]
@blog_items = @channel['item']
@feed_autodetect = [{:url => feed_url, :title => "#{site_name} blog"}]
else
@blog_items = []
end
@twitter_user = MySociety::Config.get('TWITTER_USERNAME', '')
end
# Just does a redirect from ?query= search to /query
def search_redirect
@query = alter_query_from_params
@sortby = params[:sortby]
@bodies = params[:bodies]
[:latest_status, :request_variety, :request_date_after, :request_date_before, :query].each do |x|
session[x] = params[x]
end
if @query.nil? || @query.empty?
@query = nil
@page = 1
render :action => "search"
else
if (@bodies == '1') && (@sortby.nil? || @sortby.empty?)
@postfix = 'bodies'
else
@postfix = @sortby
end
redirect_to search_url(@query, @postfix)
end
end
# Actual search
def search
# XXX Why is this so complicated with arrays and stuff? Look at the route
# in config/routes.rb for comments.
[:latest_status, :request_variety, :request_date_after, :request_date_before, :query].each do |x|
params[x] = session[x]
end
combined = params[:combined]
@sortby = nil
@bodies = false # searching from front page, largely for a public authority
# XXX currently /described isn't linked to anywhere, just used in RSS and for /list/successful
# This is because it's confusingly different from /newest - but still useful for power users.
if combined.size > 1 && (['newest', 'described', 'bodies', 'relevant'].include?(combined[-1]))
@postfix = combined[-1]
combined = combined[0..-2]
if @postfix == 'bodies'
@bodies = true
else
@sortby = @postfix
end
end
@query = combined.join("/")
@inputted_sortby = @sortby
if @sortby.nil?
# Parse query, so can work out if it has prefix terms only - if so then it is a
# structured query which should show newest first, rather than a free text search
# where we want most relevant as default.
begin
dummy_query = ::ActsAsXapian::Search.new([InfoRequestEvent], @query, :limit => 1)
rescue => e
flash[:error] = "Your query was not quite right. " + CGI.escapeHTML(e.to_str)
redirect_to search_url("")
return
end
if dummy_query.has_normal_search_terms?
@sortby = 'relevant'
else
@sortby = 'newest'
end
end
# Query each type separately for separate display (XXX we are calling
# perform_search multiple times and it clobbers per_page for each one,
# so set as separate var)
requests_per_page = 25
if params[:requests_per_page]
requests_per_page = params[:requests_per_page].to_i
end
@xapian_requests = perform_search([InfoRequestEvent], @query, @sortby, 'request_collapse', requests_per_page)
@requests_per_page = @per_page
@xapian_bodies = perform_search([PublicBody], @query, @sortby, nil, 5)
@bodies_per_page = @per_page
@xapian_users = perform_search([User], @query, @sortby, nil, 5)
@users_per_page = @per_page
@this_page_hits = @xapian_requests.results.size + @xapian_bodies.results.size + @xapian_users.results.size
@total_hits = @xapian_requests.matches_estimated + @xapian_bodies.matches_estimated + @xapian_users.matches_estimated
# Spelling and highight words are same for all three queries
@spelling_correction = @xapian_requests.spelling_correction
@highlight_words = @xapian_requests.words_to_highlight
@track_thing = TrackThing.create_track_for_search_query(@query)
@feed_autodetect = [ { :url => do_track_url(@track_thing, 'feed'), :title => @track_thing.params[:title_in_rss], :has_json => true } ]
end
# Jump to a random request
def random_request
info_request = InfoRequest.random
redirect_to request_url(info_request)
end
# For debugging
def fai_test
sleep 10
render :text => "awake\n"
end
def custom_css
long_cache
@locale = self.locale_from_params()
render(:layout => false, :content_type => 'text/css')
end
end
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