Method: JunglePath::Query::Engine.combine_results

Defined in:

lib/jungle_path/query/engine.rb

.combine_results(query, rows) ⇒ Object

# File 'lib/jungle_path/query/engine.rb', line 868

def self.combine_results(query, rows)
  results = []

  aliases = {}
  query.aliases.values.each do |ai|
    aliases[ai.name] = ai
  end

  rows.each do |new_row|
    if results.length == 0
      results << new_row
    else
      begin
        previous_row = results[-1]
        if primary_keys_match?(previous_row, new_row, aliases.values[0].primary_key_columns_count)
          #merge the row...
          results[-1 ] = merge_hash(previous_row, new_row, aliases)
        else
          # add the row...
          results << new_row
        end
      rescue
        puts "rescue..."
        puts previous_row
        puts ""
        puts new_row
        puts ""
        raise
      end
    end
  end
  results
end