Now creating periodic task via button

app/models/periodic_task_group.rb

@@ -1,5 +1,5 @@
 class PeriodicTaskGroup < ActiveRecord::Base
-  has_many :tasks, :inverse_of => :periodic_task_group, :dependent => :destroy
+  has_many :tasks, :dependent => :destroy
 
   PeriodDays = 7
   

app/models/task.rb

@@ -2,7 +2,7 @@ class Task < ActiveRecord::Base
   has_many :assignments, :dependent => :destroy
   has_many :users, :through => :assignments
   belongs_to :workgroup
-  belongs_to :periodic_task_group, :inverse_of => :tasks
+  belongs_to :periodic_task_group
 
   scope :non_group, where(workgroup_id: nil, done: false)
   scope :done, where(done: true)
@@ -47,14 +47,10 @@ class Task < ActiveRecord::Base
     end
   end
 
-  def periodic
+  def periodic?
     not periodic_task_group.nil?
   end
 
-  def periodic=(p)
-    self.periodic_task_group = PeriodicTaskGroup.new if p == "1"
-  end  
-  
   def is_assigned?(user)
     self.assignments.detect {|ass| ass.user_id == user.id }
   end