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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: hello@mysociety.org; WWW: http://www.mysociety.org/
require 'open-uri'
class GeneralController < ApplicationController
# New, improved front page!
def frontpage
medium_cache
@locale = self.locale_from_params()
end
# Display blog entries
def blog
if AlaveteliConfiguration::blog_feed.empty?
raise ActiveRecord::RecordNotFound.new("Page not enabled")
end
medium_cache
@feed_autodetect = []
@feed_url = AlaveteliConfiguration::blog_feed
separator = @feed_url.include?('?') ? '&' : '?'
@feed_url = "#{@feed_url}#{separator}lang=#{self.locale_from_params()}"
@blog_items = []
if not @feed_url.empty?
content = quietly_try_to_open(@feed_url)
if !content.empty?
@data = XmlSimple.xml_in(content)
@channel = @data['channel'][0]
@blog_items = @channel['item']
@feed_autodetect = [{:url => @feed_url, :title => "#{site_name} blog"}]
end
end
@twitter_user = AlaveteliConfiguration::twitter_username
end
# Just does a redirect from ?query= search to /query
def search_redirect
@query = params.delete(:query)
if @query.nil? || @query.empty?
@query = nil
@page = 1
@advanced = !params[:advanced].nil?
render :action => "search"
else
query_parts = @query.split("/")
if !['bodies', 'requests', 'users', 'all'].include?(query_parts[-1])
redirect_to search_url([@query, "all"], params)
else
redirect_to search_url(@query, params)
end
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.
combined = params[:combined].split("/")
@sortby = nil
@bodies = @requests = @users = true
if combined.size > 0 && (['advanced'].include?(combined[-1]))
combined.pop
@advanced = true
else
@advanced = false
end
# 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 > 0 && (['newest', 'described', 'relevant'].include?(combined[-1]))
@sort_postfix = combined.pop
@sortby = @sort_postfix
end
if !params[:view].nil?
combined += [params[:view]]
end
if combined.size > 0 && (['bodies', 'requests', 'users', 'all'].include?(combined[-1]))
@variety_postfix = combined.pop
case @variety_postfix
when 'bodies'
@bodies = true
@requests = false
@users = false
when 'requests'
@bodies = false
@requests = true
@users = false
when 'users'
@bodies = false
@requests = false
@users = true
else
@variety_postfix = "all"
end
end
@query = combined.join("/")
if params[:query].nil?
params[:query] = @query
end
if @variety_postfix != "all" && @requests
@query = InfoRequestEvent.make_query_from_params(params)
end
@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 = params[:requests_per_page] ? params[:requests_per_page].to_i : 25
@this_page_hits = @total_hits = @xapian_requests_hits = @xapian_bodies_hits = @xapian_users_hits = 0
if @requests
@xapian_requests = perform_search([InfoRequestEvent], @query, @sortby, 'request_collapse', requests_per_page)
@requests_per_page = @per_page
@this_page_hits += @xapian_requests.results.size
@xapian_requests_hits = @xapian_requests.results.size
@xapian_requests_total_hits = @xapian_requests.matches_estimated
@total_hits += @xapian_requests.matches_estimated
@request_for_spelling = @xapian_requests
end
if @bodies
@xapian_bodies = perform_search([PublicBody], @query, @sortby, nil, 5)
@bodies_per_page = @per_page
@this_page_hits += @xapian_bodies.results.size
@xapian_bodies_hits = @xapian_bodies.results.size
@xapian_bodies_total_hits = @xapian_bodies.matches_estimated
@total_hits += @xapian_bodies.matches_estimated
@request_for_spelling = @xapian_bodies
end
if @users
@xapian_users = perform_search([User], @query, @sortby, nil, 5)
@users_per_page = @per_page
@this_page_hits += @xapian_users.results.size
@xapian_users_hits = @xapian_users.results.size
@xapian_users_total_hits = @xapian_users.matches_estimated
@total_hits += @xapian_users.matches_estimated
@request_for_spelling = @xapian_users
end
# Spelling and highight words are same for all three queries
@highlight_words = @request_for_spelling.words_to_highlight
if !(@request_for_spelling.spelling_correction =~ /[a-z]+:/)
@spelling_correction = @request_for_spelling.spelling_correction
end
@track_thing = TrackThing.create_track_for_search_query(@query, @variety_postfix)
@feed_autodetect = [ { :url => do_track_url(@track_thing, 'feed'), :title => @track_thing.params[:title_in_rss], :has_json => true } ]
end
# Handle requests for non-existent URLs - will be handled by ApplicationController::render_exception
def not_found
raise RouteNotFound
end
def version
respond_to do |format|
format.json { render :json => {
:alaveteli_git_commit => alaveteli_git_commit,
:alaveteli_version => ALAVETELI_VERSION,
:ruby_version => RUBY_VERSION
}}
end
end
end
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