Method << has a Cognitive Complexity of 44 (exceeds 5 allowed). Consider refactoring.

Open

  def <<(object)
    begin
      if object.kind_of? User
        raise RuntimeError 'Users can only be assigned to groups.' unless self.kind_of? Group
        self.assign_user(object) unless self.child_users.include? object

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Method << has 41 lines of code (exceeds 25 allowed). Consider refactoring.

Open

  def <<(object)
    begin
      if object.kind_of? User
        raise RuntimeError 'Users can only be assigned to groups.' unless self.kind_of? Group
        self.assign_user(object) unless self.child_users.include? object

Avoid deeply nested control flow statements.

Open

      elsif object.kind_of? Project
        self.child_projects << object unless self.child_projects.include? object
      elsif object.kind_of? WorkflowKit::Workflow
        # # This does not work since `child_workflows` is no real association:
        # self.child_workflows << object unless self.child_workflows.include? object

Avoid deeply nested control flow statements.

Open

        unless self.events.include? object
          self.events << object
        end

Method children_cache_key has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

Open

  def children_cache_key
    "Group#{child_group_ids.sum if respond_to?(:child_group_ids)}Page#{child_page_ids.sum if respond_to?(:child_page_ids)}User#{child_user_ids.sum if respond_to?(:child_user_ids)}"
  end

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Method ancestors_cache_key has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

Open

  def ancestors_cache_key
    "Group#{ancestor_group_ids if respond_to?(:ancestor_group_ids)}Page#{ancestor_page_ids if respond_to?(:ancestor_page_ids)}User#{ancestor_user_ids if respond_to?(:ancestor_user_ids)}"
  end

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Method destroy_dag_links has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

Open

  def destroy_dag_links

    # destory only child and parent links, since the indirect links
    # are destroyed automatically by the DagLink model then.
    links = self.links_as_parent + self.links_as_child

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