Method: Sequel::Plugins::Tree::DatasetMethods#roots_dataset

Defined in:
lib/sequel/plugins/tree.rb

#roots_dataset ⇒ Object

Returns the dataset for retrieval of all root nodes

TreeClass.roots_dataset # => Sequel::Dataset instance


158
159
160
161
162
 
# File 'lib/sequel/plugins/tree.rb', line 158

def roots_dataset
  ds = where(Sequel.or(Array(model.qualified_parent_column).zip([])))
  ds = ds.order(*model.tree_order) if model.tree_order
  ds
end