Class: ActiveRecord::HierarchicalQuery::Visitors::PostgreSQL::Orderings
- Defined in:
- lib/active_record/hierarchical_query/visitors/postgresql/orderings.rb
Constant Summary collapse
- NATURAL_SORT_TYPES =
Set[ :integer, :float, :decimal, :datetime, :timestamp, :time, :date, :boolean, :itet, :cidr, :ltree ]
Constants inherited from Orderings
Orderings::ORDERING_COLUMN_ALIAS
Instance Attribute Summary
Attributes inherited from Visitor
Instance Method Summary collapse
Methods inherited from Orderings
#visit_cte, #visit_joined_relation
Methods inherited from Visitor
Constructor Details
This class inherits a constructor from ActiveRecord::HierarchicalQuery::Visitors::Visitor
Instance Method Details
#visit_non_recursive(arel) ⇒ Object
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# File 'lib/active_record/hierarchical_query/visitors/postgresql/orderings.rb', line 16 def visit_non_recursive(arel) project(arel) do Arel::Nodes::PostgresArray.new([row_number_expression]).as(column_name) end end |
#visit_recursive(arel) ⇒ Object
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# File 'lib/active_record/hierarchical_query/visitors/postgresql/orderings.rb', line 22 def visit_recursive(arel) project(arel) do Arel::Nodes::ArrayConcat.new(recursive_table[column_name], row_number_expression) end end |