module ClosureTree::NumericOrderSupport::PostgreSQLAdapter
Public Instance Methods
reorder_with_parent_id(parent_id, minimum_sort_order_value = nil)
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# File lib/closure_tree/numeric_order_support.rb, line 34 def reorder_with_parent_id(parent_id, minimum_sort_order_value = nil) return if parent_id.nil? && dont_order_roots min_where = if minimum_sort_order_value "AND #{quoted_order_column} >= #{minimum_sort_order_value}" else "" end connection.execute <<-SQL.squish UPDATE #{quoted_table_name} SET #{quoted_order_column(false)} = t.seq + #{minimum_sort_order_value.to_i - 1} FROM ( SELECT #{quoted_id_column_name} AS id, row_number() OVER(ORDER BY #{order_by}) AS seq FROM #{quoted_table_name} WHERE #{where_eq(parent_column_name, parent_id)} #{min_where} ) AS t WHERE #{quoted_table_name}.#{quoted_id_column_name} = t.id and #{quoted_table_name}.#{quoted_order_column(false)} is distinct from t.seq + #{minimum_sort_order_value.to_i - 1} SQL end
rows_updated(result)
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# File lib/closure_tree/numeric_order_support.rb, line 54 def rows_updated(result) result.cmd_status.sub(/\AUPDATE /, '').to_i end