Implement notification for upcoming tasks via a daily fired rake-task.

app/models/mailer.rb

@@ -37,5 +37,14 @@ class Mailer < ActionMailer::Base
                 :link => url_for(:host => request.host, :controller => "login", :action => "invite", :id => invite.token),
                 :foodsoftUrl => url_for(:host => request.host, :controller => "index")
   end
+
+  # Notify user of upcoming task.
+  def notify_upcoming_tasks(user, task)
+    subject   "[#{APP_CONFIG[:name]}] Aufgaben werden fällig!"
+    recipients  user.email
+    from        "FoodSoft <#{APP_CONFIG[:email_sender]}>"
+    body        :user => user, :task => task
+
+  end
   
 end

app/models/task.rb

@@ -22,6 +22,7 @@ class Task < ActiveRecord::Base
 
   named_scope :non_group, :conditions => { :workgroup_id => nil, :done => false }
   named_scope :done, :conditions => {:done => true}, :order => "due_date ASC"
+  named_scope :upcoming, lambda { |*args| {:conditions => ["done = 0 AND due_date = ?", (args.first || 7.days.from_now)]} }
   
   # form will send user in string. responsibilities will added later
   attr_protected :users

app/models/user.rb

@@ -53,12 +53,13 @@ class User < ActiveRecord::Base
   # returns the User-settings and the translated description
   def self.setting_keys
     {
-      "notify.orderFinished" => 'Get message with order result',
-      "notify.negativeBalance" => 'Get message if negative account balance',
-      "messages.sendAsEmail" => 'Get messages as emails',
-      "profile.phoneIsPublic" => 'Phone is visible for foodcoop members',
-      "profile.emailIsPublic" => 'Email is visible for foodcoop members',
-      "profile.nameIsPublic" => 'Name is visible for foodcoop members'
+      "notify.orderFinished" => 'Informier mich über meine Bestellergebnisse (nach Ende der Bestellung).',
+      "notify.negativeBalance" => 'Informiere mich, falls meine Bestellgruppe ins Minus rutscht.',
+      "notify.upcoming_tasks" => 'Erinnere mich an anstehende Aufgaben.',
+      "messages.sendAsEmail" => 'Bekomme Nachrichten als Emails.',
+      "profile.phoneIsPublic" => 'Telefon ist für Mitglieder sichtbar',
+      "profile.emailIsPublic" => 'E-Mail ist für Mitglieder sichtbar',
+      "profile.nameIsPublic" => 'Name ist für Mitglieder sichtbar'
     }
   end
   # retuns the default setting for a NEW user
@@ -67,7 +68,8 @@ class User < ActiveRecord::Base
   def settings_default(setting)
     # define a default for the settings
     defaults = {
-      "messages.sendAsEmail" => true
+      "messages.sendAsEmail" => true,
+      "notify.upcoming_tasks" => true
     }
     return true if self.new_record? && defaults[setting]
   end

app/views/mailer/notify_upcoming_tasks.html.erb

@@ -0,0 +1,17 @@
+Liebe(r) <%= @user.name %>,
+
+Du bist für "<%= @task.name -%>" eingetragen. Die Aufgabe ist morgen (<%= @task.due_date.strftime("%d. %b") -%>) fällig!
+
+<% if @user.next_tasks.size > 1 -%>
+Aufgaben für die nächste Woche:
+  <% for next_task in @user.next_tasks -%>
+  <% unless next_task == @task -%>
+* <%= next_task.due_date.strftime("%d.%m.") -%> <%= next_task.name %>
+  <% end -%>
+  <% end -%>
+<% end -%>
+
+Viele Grüße von <%= APP_CONFIG[:name] %>
+
+--
+Meine Aufgaben: <%= APP_CONFIG[:base_url] %>/home/tasks

db/migrate/20090120184410_road_to_version_three.rb

@@ -144,7 +144,9 @@ class RoadToVersionThree < ActiveRecord::Migration
 #      t.datetime :created_at
 #    end
 
-
+    # == User
+    # Ativate all Users for notification on upcoming tasks
+    User.all.each { |u| u.settings['notify.upcoming_tasks'] = 1 }
 
   end
 

db/schema.rb

@@ -9,7 +9,7 @@
 #
 # It's strongly recommended to check this file into your version control system.
 
-ActiveRecord::Schema.define(:version => 20090120184410) do
+ActiveRecord::Schema.define(:version => 20090119155930) do
 
   create_table "article_categories", :force => true do |t|
     t.string "name",        :default => "", :null => false

lib/tasks/foodsoft.rake

@@ -24,4 +24,18 @@ namespace :foodsoft do
     puts "Joining 'admin' user to 'Administrators' group"
     Membership.create(:group => administrators, :user => admin)
   end
+
+  desc "Notify users of upcoming tasks"
+  task :notify_upcoming_tasks => :environment do
+    tasks = Task.find :all, :conditions => ["done = ? AND due_date = ?", false, 1.day.from_now.to_date]
+    for task in tasks
+      puts "Send notifications for #{task.name} to .."
+      for user in task.users
+        if user.settings['notify.upcoming_tasks'] == 1
+          puts "#{user.email}.."
+          Mailer.deliver_notify_upcoming_tasks(user,task)
+        end
+      end
+    end
+  end
 end