Module: HasHierarchy::OrmAdapter::ActiveRecord

Defined in:
lib/has_hierarchy/orm_adapter/active_record.rb

Instance Method Summary collapse

Instance Method Details

#ancestors ⇒ Object 



4
5
6
 
# File 'lib/has_hierarchy/orm_adapter/active_record.rb', line 4

def ancestors
  tree_scope.where(path_part_column => path_parts)
end

#descendants ⇒ Object 



20
21
22
 
# File 'lib/has_hierarchy/orm_adapter/active_record.rb', line 20

def descendants
  tree_scope.where(descendants_conditions)
end

#siblings ⇒ Object 



8
9
10
11
12
 
# File 'lib/has_hierarchy/orm_adapter/active_record.rb', line 8

def siblings
  t = self.class.arel_table

  tree_scope.where(t[:parent_id].eq(parent_id).and(t[:id].not_eq(id)))
end

#subtree ⇒ Object 



14
15
16
17
18
 
# File 'lib/has_hierarchy/orm_adapter/active_record.rb', line 14

def subtree
  t = self.class.arel_table

  tree_scope.where(t[:id].eq(id).or(descendants_conditions))
end