Allow changing number of automaticly created next weekly tasks.

app/models/workgroup.rb

@@ -4,15 +4,17 @@ class Workgroup < Group
   # returns all non-finished tasks
   has_many :open_tasks, :class_name => 'Task', :conditions => ['done = ?', false], :order => 'due_date ASC'
 
-  validates_presence_of :task_name, :weekday, :task_required_users,
+  validates_presence_of :task_name, :weekday, :task_required_users, :next_weekly_tasks_number,
-    :if => Proc.new {|workgroup| workgroup.weekly_task }
+    :if => :weekly_task
+  validates_numericality_of :next_weekly_tasks_number, :greater_than => 0, :less_than => 21, :only_integer => true,
+    :if => :weekly_task
 
   def self.weekdays
     [["Montag", "1"], ["Dienstag", "2"], ["Mittwoch","3"],["Donnerstag","4"],["Freitag","5"],["Samstag","6"],["Sonntag","0"]]
   end
 
   # Returns an Array with date-objects to represent the next weekly-tasks
-  def next_weekly_tasks(number = 8)
+  def next_weekly_tasks
     # our system starts from 0 (sunday) to 6 (saturday)
     # get difference between groups weekday and now
     diff = self.weekday - Time.now.wday 
@@ -25,7 +27,7 @@ class Workgroup < Group
     end
     # now generate the Array
     nextTasks = Array.new
-    number.times do
+    next_weekly_tasks_number.times do
       nextTasks << nextTask.to_date
       nextTask = 1.week.from_now(nextTask)
     end

app/views/shared/_group_form.html.haml

@@ -39,6 +39,10 @@
         %td
           = @form.label :task_description, "Beschreibung:"
         %td= @form.text_area :task_description, :size => "30x10"
+      %tr
+        %td
+          = @form.label :next_weekly_tasks_number, "Für wieviel Wochen im Voraus sollen Aufgaben erstellt werden?"
+        %td= @form.text_field :next_weekly_tasks_number, :size => 3
 
   %script{ 'type' => "text/javascript"}
     :plain

db/migrate/20120622094337_add_next_weekly_tasks_number_to_workgroups.rb

@@ -0,0 +1,9 @@
+class AddNextWeeklyTasksNumberToWorkgroups < ActiveRecord::Migration
+  def self.up
+    add_column :groups, :next_weekly_tasks_number, :integer, :default => 8
+  end
+
+  def self.down
+    remove_column :groups, :next_weekly_tasks_number
+  end
+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 => 20110507192928) do
+ActiveRecord::Schema.define(:version => 20120622094337) do
 
   create_table "article_categories", :force => true do |t|
     t.string "name",        :default => "", :null => false
@@ -151,6 +151,7 @@ ActiveRecord::Schema.define(:version => 20110507192928) do
     t.string   "contact_address"
     t.text     "stats"
     t.integer  "task_duration",                                          :default => 1
+    t.integer  "next_weekly_tasks_number",                               :default => 8
   end
 
   add_index "groups", ["name"], :name => "index_groups_on_name", :unique => true

lib/tasks/foodsoft.rake

@@ -25,7 +25,7 @@ namespace :foodsoft do
     workgroups = Workgroup.all :conditions => {:weekly_task => true}
     for workgroup in workgroups
       puts "Create weekly tasks for #{workgroup.name}"
-      workgroup.next_weekly_tasks(8)[3..5].each do |date|
+      workgroup.next_weekly_tasks[3..5].each do |date|
         unless workgroup.tasks.exists?({:due_date => date, :weekly => true})
           workgroup.tasks.create(workgroup.task_attributes(date))
         end