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# app/controllers/track_controller.rb:
# Publically visible email alerts and RSS - think an alert system crossed with
# social bookmarking.
#
# Copyright (c) 2008 UK Citizens Online Democracy. All rights reserved.
# Email: francis@mysociety.org; WWW: http://www.mysociety.org/
#
# $Id: track_controller.rb,v 1.22 2008-05-27 11:16:05 francis Exp $
class TrackController < ApplicationController
# Track all updates to a particular request
def track_request
@info_request = InfoRequest.find_by_url_title(params[:url_title])
@track_thing = TrackThing.create_track_for_request(@info_request)
ret = self.track_set
if ret
if @track_thing.track_medium == 'feed'
redirect_to :controller => 'track', :action => 'atom_feed', :track_id => @track_thing.id
else
flash[:notice] = "You are " + ret + " tracking this request!"
redirect_to request_url(@info_request)
end
end
end
# Track all new/successful requests
def track_list
@view = params[:view]
if @view.nil?
@track_thing = TrackThing.create_track_for_all_new_requests
elsif @view == 'successful'
@track_thing = TrackThing.create_track_for_all_successful_requests
else
raise "unknown request list view " + @view.to_s
end
ret = self.track_set
if ret
if @track_thing.track_medium == 'feed'
redirect_to :controller => 'track', :action => 'atom_feed', :track_id => @track_thing.id
else
if @view.nil?
if ret == 'already'
flash[:notice] = "You are already being told about any new requests!"
elsif ret == 'now'
flash[:notice] = "You will now be told about any new requests!"
else
raise "unknown ret '" + ret + "'"
end
elsif @view == 'successful'
if ret == 'already'
flash[:notice] = "You are already being told about any successful requests!"
elsif ret == 'now'
flash[:notice] = "You will now be told about any successful requests!"
else
raise "unknown ret '" + ret + "'"
end
else
raise "unknown request list view " + @view.to_s
end
redirect_to request_list_url(:view => @view)
end
end
end
# Track all updates to a particular public body
def track_public_body
@public_body = PublicBody.find_by_url_name(params[:url_name])
@track_thing = TrackThing.create_track_for_public_body(@public_body)
ret = self.track_set
if ret
if @track_thing.track_medium == 'feed'
redirect_to :controller => 'track', :action => 'atom_feed', :track_id => @track_thing.id
else
flash[:notice] = "You are " + ret + " tracking this public authority!"
redirect_to public_body_url(@public_body)
end
end
end
# Track a user
def track_user
@track_user = User.find_by_url_name(params[:url_name])
@track_thing = TrackThing.create_track_for_user(@track_user)
ret = self.track_set
if ret
if @track_thing.track_medium == 'feed'
redirect_to :controller => 'track', :action => 'atom_feed', :track_id => @track_thing.id
else
flash[:notice] = "You are " + ret + " tracking this person!"
redirect_to user_url(@track_user)
end
end
end
# Track a search term
def track_search_query
# XXX should be better thing in rails routes than having to do this
# join just to get / and . to work in a query.
query_array = params[:query_array]
@query = query_array.join("/")
@track_thing = TrackThing.create_track_for_search_query(@query)
ret = self.track_set
if ret
if @track_thing.track_medium == 'feed'
redirect_to :controller => 'track', :action => 'atom_feed', :track_id => @track_thing.id
else
flash[:notice] = "You are " + ret + " tracking the search '" + CGI.escapeHTML(@query) + "' !"
redirect_to search_url(@query)
end
end
end
# Generic request tracker - set @track_thing before calling
def track_set
if @user
@existing_track = TrackThing.find_by_existing_track(@user, @track_thing)
if @existing_track
return "already"
end
end
@track_thing.track_medium = 'email_daily'
@title = @track_thing.params[:set_title]
if params[:track_thing]
@track_thing.track_medium = params[:track_thing][:track_medium]
end
if not params[:submitted_track] or not @track_thing.valid?
render :template => 'track/track_set'
return false
end
if not authenticated?(@track_thing.params)
return false
end
@track_thing.tracking_user_id = @user.id
@track_thing.save!
return "now"
end
# Atom feed (like RSS) for the track
def atom_feed
@track_thing = TrackThing.find(params[:track_id].to_i)
@xapian_object = perform_search([InfoRequestEvent], @track_thing.track_query, @track_thing.params[:feed_sortby], nil, 25, 1)
respond_to :atom
end
# Change or delete a track
def update
track_thing = TrackThing.find(params[:track_id].to_i)
if not authenticated_as_user?(track_thing.tracking_user,
:web => "To cancel this alert",
:email => "Then you can cancel the alert.",
:email_subject => "Cancel a WhatDoTheyKnow alert"
)
# do nothing - as "authenticated?" has done the redirect to signin page for us
return
end
new_medium = params[:track_thing][:track_medium]
if new_medium == 'delete'
track_thing.destroy
flash[:notice] = "You will no longer be updated about " + track_thing.params[:list_description]
redirect_to user_url(track_thing.tracking_user)
elsif new_medium == 'email_daily'
track_thing.track_medium = new_medium
track_thing.created_at = Time.now() # as created_at is used to limit the alerts to start with
track_thing.save!
flash[:notice] = "You are now tracking " + track_thing.params[:list_description] + " by email"
redirect_to user_url(track_thing.tracking_user)
elsif new_medium == 'feed'
track_thing.track_medium = new_medium
track_thing.save!
redirect_to :controller => 'track', :action => 'atom_feed', :track_id => track_thing.id
else
raise "unknown medium " + new_medium
end
end
end
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